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CN103034913A - Electrical equipment radiation electromagnetic-compatibility optimization method based on exposure limit of living quarter - Google Patents

Electrical equipment radiation electromagnetic-compatibility optimization method based on exposure limit of living quarter Download PDF

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CN103034913A
CN103034913A CN201210592518XA CN201210592518A CN103034913A CN 103034913 A CN103034913 A CN 103034913A CN 201210592518X A CN201210592518X A CN 201210592518XA CN 201210592518 A CN201210592518 A CN 201210592518A CN 103034913 A CN103034913 A CN 103034913A
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frequency range
electrical equipment
shortwave frequency
tre
matrix
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CN103034913B (en
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贾云峰
胡修
魏嘉利
吴亮
马超
马新超
苏东林
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Beihang University
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Abstract

The invention discloses an electrical equipment radiation electromagnetic-compatibility optimization method based on the exposure limit of a living quarter. Depending on the measurement of the radiation intensity of the shortwave frequency range of electrical equipment in the different areas of the living quarter, the method combines a military standard limit, adopts a weighting matrix strategy to calculate the degree of balance of electromagnetic compatibility of radiation of the shortwave frequency range in the living quarter, adopts a simplex method strategy to complete data processing of the degree of balance of electromagnetic compatibility of radiation of the shortwave frequency range in the living quarter, forms the optimization of an adjustment scheme of the electromagnetic compatibility of radiation of the shortwave frequency range in the living quarter, and solves the problems that the electromagnetic compatibility of radiation of the shortwave frequency range in the living quarter cannot be accurately forecasted and a best optimization scheme cannot be presented due to the strong coupling relationship of radiation between electrical equipment. Considering the military standard exposure limit requirement of activity areas of people in living quater, the method carries out the data processing aiming at the degree of balance of electromagnetic compatibility of radiation in the living quarter. Thus, the pertinence and the effectiveness of optimizing the balanced state of the electromagnetic compatibility of radiation of the shortwave frequency range in the living quarter are increased.

Description

The compatible optimization method of a kind of electrical equipment electromagnetic radiation based on the living quarters exposure limits
Technical field
The present invention relates to the compatible optimization method of a kind of electrical equipment electromagnetic radiation based on the living quarters exposure limits, belong to the EMC Design field.
Background technology
In the living space of many electrical equipment collaborative works, the electromagnetic radiation meeting of the generation of a certain electrical equipment works the mischief to the personal security in the living space.Along with the more and more densification of electrical equipment in the living space, the living space gets more and more people's extensive concerning to the requirement of electromagnetic compatibility always.
Single electric equipment products will be to the certain space scope in the design production run in the radiation hazard of this product assess, but existing means can't be carried out the evaluation and analysis of the electromagnetic compatibility problem that causes of different model, different manufacturers electric equipment products in the same space.The means of electric equipment products electromagnetic radiation compatibility being carried out effectively, being controlled in real time in the living quarters are limited, and the compatible tension metrics of the electromagnetic radiation that does not clearly quantize is difficult to reach monitoring living quarters electromagnetic radiation purpose.The electrical equipment that the electromagnetic radiation compatibility issue occurs is adjusted in the process of optimization, the electrical equipment quantity that the living quarters comprises is huge, and coupled relation is intricate each other, is difficult to obtain best prioritization scheme.
Summary of the invention
The objective of the invention is to have proposed a kind of Electro Magnetic Compatibility equilibrium state optimization method of processing based on the compatible quality of balance data of living quarters shortwave frequency range electromagnetic radiation in order to realize the compatible equilibrium state optimization of living quarters shortwave frequency range electromagnetic radiation.
The living quarters EMC Requirements generally includes: 1, each appliance chamber is wanted and can compatible be worked in the living quarters, namely from compatible; 2, the adaptive requirement of electromagnetic environment is satisfied in the living quarters.These two parts have consisted of the Electro Magnetic Compatibility in living quarters.
Electromagnetic compatibility sexual balance: when above-mentioned two conditions are satisfied in the living quarters simultaneously, be in the Electro Magnetic Compatibility equilibrium state.
In the method, a kind of being based upon on the shortwave frequency range radiation matrix basis, living quarters proposed, be used for estimating the index of the good and bad degree of the compatible equilibrium state of living quarters shortwave frequency range electromagnetic radiation, be designated as: the compatible quality of balance b of living quarters shortwave frequency range electromagnetic radiation, dependence is calculated in advance to the compatible quality of balance of electromagnetic radiation, in conjunction with army's mark limit value, the data that adopt the simplicial method strategy to finish the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation are processed, form the preferred of the compatible adjustment scheme of living quarters shortwave frequency range electromagnetic radiation, solved in the past because the compatible equilibrium state of the living quarters shortwave frequency range electromagnetic radiation that the relation of the radiation coupling between the electrical equipment causes is difficult to Accurate Prediction, can't propose the problem of optimum optimization scheme.Consider among the mark GJB5313-2004 of army " electromagnetic radiation exposure limit value and measuring method " the exposure limits requirement of personnel activity zone, carry out data for the compatible quality of balance of living quarters electromagnetic radiation and process, improved specific aim and validity that living quarters shortwave frequency range Electro Magnetic Compatibility equilibrium state is optimized.
A kind of compatible equilibrium state optimization method of living quarters shortwave frequency range electromagnetic radiation of measuring based on shortwave frequency range electromagnetic radiation exposure comprises following step:
The first step: divide living quarters personnel activity zone;
Second step: measure the radiation intensity of electrical equipment shortwave frequency range in zones of different, obtain electrical equipment shortwave frequency range radiation matrix;
The 3rd step: obtain the shortwave frequency range personnel activity zone exposure limits of m platform electrical equipment, obtain shortwave frequency range personnel exposure limits matrix;
The 4th step: obtain the compatible abundant value matrix of electrical equipment shortwave frequency range electromagnetic radiation;
The 5th step: obtain each electrical equipment radiation weights of shortwave frequency range, and obtain electrical equipment shortwave frequency range radiation weight matrix;
The 6th step: obtain the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation;
The 7th step: according to the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation that the 6th step obtained, judge whether living quarters electromagnetic radiation compatibility is rectified and improved or optimized;
The 8th step: obtain shortwave frequency range electrical equipment ideal radiation limit value, obtain the desirable exposure limits matrix of shortwave frequency range personnel;
The 9th step: obtain the compatible quality of balance optimum solution of living quarters shortwave frequency range electromagnetic radiation;
The tenth step: according to the compatible matrix Δ T that adjusts of living quarters shortwave frequency range electromagnetic radiation, shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is optimized.
The present invention is based on the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation and investigate, shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is analyzed, finish the preferred of the compatible adjustment scheme of living quarters shortwave frequency range electromagnetic radiation, its advantage is:
(1) realized the quantification of the compatible equilibrium state of living quarters electromagnetic radiation;
(2) Real Time Monitoring for living quarters electromagnetic radiation compatibility provides evaluation measures;
(3) provide technical support for electrical equipment adjustment optimization;
(4) data that adopt the simplicial method strategy to finish the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation are processed, form the preferred of the compatible adjustment scheme of living quarters shortwave frequency range electromagnetic radiation, solved in the past because the living quarters shortwave frequency range electromagnetic radiation compatibility that the relation of the radiation strong coupling between the electrical equipment causes is difficult to Accurate Prediction, can't propose the problem of optimum optimization scheme.
(5) consider the exposure limits requirement of national military standard living quarters personnel activity zone, carry out data for the compatible quality of balance of living quarters electromagnetic radiation and process, improved specific aim and validity that living quarters shortwave frequency range Electro Magnetic Compatibility equilibrium state is optimized.
Description of drawings
Fig. 1 is method flow diagram of the present invention;
Fig. 2 is the structural representation of test platform among the present invention.
Among the figure:
The 1-computing machine, 2-measuring receiver, 3-attenuator, 4-tours antenna.
Embodiment
The present invention is described in further detail below in conjunction with drawings and Examples.
The present invention is a kind of under known shortwave frequency range electrical equipment radiation intensity, is suitable for the optimization method of the compatible equilibrium state of living quarters shortwave frequency range electromagnetic radiation, and as shown in Figure 1, the Electro Magnetic Compatibility adjustment Scheme Optimum Seeking Methods of carrying out according to the method has the following step:
The first step: divide living quarters personnel activity zone;
Zone of action according to operating personnel in room layout, structure and the room use procedure, adopt the mark GJB5313-2004 of army " electromagnetic radiation exposure restriction and measuring method " that the living quarters is divided, obtain living quarters personnel activity zone, and difference called after: zone 1, zone 2, zone 3 ... zone n, n represents the quantity of zoning.The division in zone can be according to living quarters personnel activity's demand, consider in conjunction with electrical equipment placement location situation.
Second step: measure the radiation intensity of electrical equipment shortwave frequency range in zones of different, obtain electrical equipment shortwave frequency range radiation matrix;
As shown in Figure 2, measuring table comprises computing machine 1, measuring receiver 2, attenuator 3 and tours antenna 4; Computing machine 1, measuring receiver 2, attenuator 3, tours antenna 4 connect by wire successively.
Described measuring receiver 2 is German Luo De and Schwarz R﹠amp; The ESIB-40 model that S company produces;
The DTS300 300W model that described attenuator 3 is produced for ShangHai HuaXiang Computer Communication Engineering Co., Ltd;
Described tours antenna 4 is German Luo De and Schwarz R﹠amp; The HFH2-Z2 model that S company produces;
Tours antenna 4 is placed in the zone to be measured, electrical equipment is when work, the shortwave frequency range electromagnetic radiation of 4 pairs of electrical equipment of tours antenna receives, obtain shortwave frequency range electromagnetic radiation signal, 3 pairs of shortwave frequency ranges of attenuator electromagnetic radiation signal is decayed, shortwave frequency range electromagnetic radiation signal after 2 pairs of decay of computing machine 1 control survey receiver gathers, and obtains the shortwave frequency range electromagnetic radiation intensity of electrical equipment in this zone, by computing machine 1 record shortwave frequency range electromagnetic radiation intensity.
Concrete steps are:
Step 201: adopt measuring table, measure the shortwave frequency range electromagnetic radiation intensity of electrical equipment in each zone, establish the total m platform electrical equipment in living quarters, be specially:
Divide in conjunction with the living quarters personnel activity zone that obtains in the first step, according to measuring system platform shown in Figure 2 m platform electrical equipment is carried out shortwave frequency range radiation emission measurement, and the shortwave frequency range electromagnetic radiation intensity that collects is denoted as Tre.
Adopt measuring table, in zone 1, measure, open First electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of First electrical equipment, be designated as Tre 1,1, close First electrical equipment, open second electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of second electrical equipment, be designated as Tre 1,2, close second electrical equipment ..., in like manner, open m platform electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of m platform electrical equipment, be designated as Tre 1, m, close m platform electrical equipment.Finishing the electrical equipment shortwave frequency range electromagnetic radiation intensity in zone 1 measures.
Adopt measuring table, in zone 2, measure, open First electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of First electrical equipment, be designated as Tre 2,1, close First electrical equipment, open second electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of second electrical equipment, be designated as Tre 2,2, close second electrical equipment ..., in like manner, open m platform electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of m platform electrical equipment, be designated as Tre 2, m, close m platform electrical equipment.Finishing the electrical equipment shortwave frequency range electromagnetic radiation intensity in zone 2 measures.
......
In like manner, adopt measuring table, in regional n, measure, open First electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of First electrical equipment, be designated as Tre N, 1, close First electrical equipment, open second electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of second electrical equipment, be designated as Tre N, 2, close second electrical equipment ..., in like manner, open m platform electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of m platform electrical equipment, be designated as Tre N, m, close m platform electrical equipment.Finishing the electrical equipment shortwave frequency range electromagnetic radiation intensity of regional n measures.
Step 202: according to the measurement result that obtains in the step 201, set up electrical equipment shortwave frequency range radiation matrix T:
The 3rd step: obtain the shortwave frequency range personnel activity zone exposure limits of m platform electrical equipment, obtain shortwave frequency range personnel exposure limits matrix;
According to the regulation that among the GJB5313-2004 " electromagnetic radiation exposure restriction and measuring method " personnel activity zone electromagnetic radiation exposure is limited, obtain the shortwave frequency range personnel activity zone exposure limits of m platform electrical equipment.The electromagnetic radiation of shortwave frequency range comprises continuous wave, two kinds of emission types of pulsating wave, among the GJB5313-2004 to definite method of zone of action shortwave frequency range continuous wave, pulsating wave exposure limits is:
(1) exposure limits of living quarters personnel activity zone shortwave frequency range continuous wave exposure is:
Figure BDA00002690711000051
(2) exposure limits of living quarters personnel activity zone shortwave frequency range pulsating wave exposure is:
Figure BDA00002690711000052
Wherein, f represents the radiation frequency of electrical equipment, and unit is MHz;
According to the electromagnetic radiation type of electrical equipment, adopt definite method of above-mentioned exposure limits, the shortwave frequency range personnel activity zone exposure limits that obtains m platform electrical equipment is:
The shortwave frequency range personnel activity zone exposure limits of First electrical equipment is designated as Expl 1
The shortwave frequency range personnel activity zone exposure limits of second electrical equipment is designated as Expl 2
......
The shortwave frequency range personnel activity zone exposure limits of m platform electrical equipment is designated as Expl m
For corresponding with the electrical equipment shortwave frequency range radiation matrix that obtains in the step 202, divide in conjunction with the living quarters personnel activity zone that obtains in the first step, set up shortwave frequency range personnel exposure limits matrix E:
Figure BDA00002690711000053
The 4th step: obtain the compatible abundant value matrix of electrical equipment shortwave frequency range electromagnetic radiation;
Step 401: the electrical equipment shortwave frequency range radiation matrix T that obtains in the step 202 and the shortwave frequency range personnel exposure limits matrix E that obtains in the 3rd step are n * m rank matrix, carry out matrix and subtract each other S=E-T, obtain:
δ i,j=Expl j-Tre i,j
Wherein, the row of i representing matrix, the row of j representing matrix, δ I, jBe element corresponding in the matrix S:
Figure BDA00002690711000061
Step 402: each element in the matrix S is advanced to go respectively normalized:
δ i , j ′ = δ i , j Expl j
Wherein, δ ' I, jExpression δ I, jValue after the normalized, Expl jThe value of arbitrary element in the j row among the representing matrix E obtains the compatible abundant value matrix S' of electrical equipment shortwave frequency range electromagnetic radiation:
If the negative value element occurs among the compatible abundant value matrix S ' of electrical equipment shortwave frequency range electromagnetic radiation, according to Bucket Principle, make then that all values on the occasion of element are 0, matrix S ' in only keep the negative value element.
Among the present invention, the element δ ' among the compatible abundant value matrix S' of electrical appliance shortwave frequency range electromagnetic radiation I, jWeigh different electrical equipment radiation to the abundant value of radiation of different zones of action, living quarters.
The 5th step: obtain each electrical equipment radiation weights of shortwave frequency range, and obtain electrical equipment shortwave frequency range radiation weight matrix;
Step 501: according among the GJB72A-2002 " electromagnetic interference (EMI) and electromagnetic compatibility term " to the key category classification principle of subsystem and equipment, obtain m platform electrical equipment electromagnetic compatibility classification indicators EML={eml 1, eml 2..., eml m, be specially:
According to 2.1.56 joint among the GJB72A-2002 " electromagnetic interference (EMI) and electromagnetic compatibility term ", the key category classification principle of subsystem and equipment: all are installed in intrasystem, or should delimit the electromagnetic compatibility into EMC(with subsystem and the equipment of System Dependent) a certain class in the crucial class.These divide the impact that may cause based on electromagnetic interference (EMI), failure rate or for the degradation program of assign task.Can be divided into following three kinds:
(1) this class electromagnetic compatibility problem of I class may cause that the lost of life, delivery vehicle are impaired, tasks interrupt, emission of a high price postpones or unacceptable system effectiveness descends;
(2) this class electromagnetic compatibility problem of II class may cause delivery vehicle fault, system effectiveness to descend, and cause task to finish;
(3) this class electromagnetic compatibility problem of III class may cause noise, slight discomfort or performance degradation, but can not reduce the expection validity of system.
Among the present invention, calculate in order to carry out digitizing, adopt the analytical hierarchy process strategy, the electromagnetic compatibility classification indicators that the electrical equipment of I class is satisfied in acquisition are AA; The electromagnetic compatibility classification indicators that the electrical equipment of II class is satisfied in acquisition are AB; The electromagnetic compatibility classification indicators that the electrical equipment of III class is satisfied in acquisition are AC, and then the electromagnetic compatibility classification indicators of m platform electrical equipment are eml s = AA AB AC , And AA>AB>AC, 1≤s≤m.
In the present invention, illustrate that with electromagnetic compatibility classification indicators EML different electrical equipment are on the impact of system EMC.
Step 502: obtain electromagnetic compatibility classification weight;
To m platform electrical equipment electromagnetic compatibility classification indicators EML={eml 1, eml 2..., eml mCarry out the data processing, obtain electrical equipment electromagnetic compatibility classification weight EM={em 1, em 2..., em m;
Wherein: em r = eml r Σ q = 1 m eml q × 100 % , 1≤r≤m,1≤q≤m;
Em 1The electromagnetic compatibility classification indicators eml of expression First electrical equipment 1Weight;
Em 2The electromagnetic compatibility classification indicators eml of second electrical equipment of expression 2Weight;
......
Em mThe electromagnetic compatibility classification indicators eml that represents m platform electrical equipment mWeight;
Among the present invention, electrical appliance electromagnetic compatibility classification weight EM weighs different electrical equipment electromagnetic compatibility harm to the influence degree of personnel activity's zone radioactive exposure value.
Step 503: obtain personnel activity zone classification weight;
List the classification indicators HAL={1 of n personnel zone of action, 1 ..., 1}.
Adopt normalized thought to the classification indicators HAL={1 of n personnel zone of action, 1 ..., 1} carries out data to be processed, and obtains personnel activity zone classification weight HA = { 1 n , 1 n , . . . , 1 n } T .
Step 504: adopt the power of tax to concern W=HA * EM, to the electrical equipment electromagnetic compatibility classification weight EM={em that obtains in the step 502 1, em 2..., em mAnd step 503 in personnel activity's zone classification weight of obtaining
Figure BDA00002690711000081
Process, obtain electrical equipment shortwave frequency range radiation weight matrix W, wherein, w I, jBe element corresponding in the matrix W:
Figure BDA00002690711000082
Among the present invention, different electrical equipment radiation are usually weighed to the radiation effect degree of different zones of action in the living quarters by the unit among the electrical appliance shortwave frequency range radiation weight matrix W.
The 6th step: obtain the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation;
Adopt respective items weighted sum strategy
Figure BDA00002690711000083
Element among the shortwave frequency range electromagnetic radiation abundant value matrix S ' of compatibility that obtains in the 4th step and the electrical equipment shortwave frequency range radiation weight matrix W that obtains in the 5th step is carried out data process, obtain the compatible quality of balance b of living quarters shortwave frequency range electromagnetic radiation.
The 7th step: according to the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation that the 6th step obtained, judge whether living quarters electromagnetic radiation compatibility is rectified and improved or optimized;
Among the present invention, weigh the quality of the compatible equilibrium state of living quarters shortwave frequency range electromagnetic radiation with the compatible quality of balance b of living quarters shortwave frequency range electromagnetic radiation.The compatible quality of balance b larger (b≤1) of electromagnetic radiation illustrates that then living quarters shortwave frequency range Radiation On Human person's harm is lower; Otherwise compatible quality of balance b is less for living quarters shortwave frequency range electromagnetic radiation, illustrates that then living quarters shortwave frequency range Radiation On Human person's harm is higher.
(1) if b 〉=0 represents that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters meets military standard of China, can personnel's radiation safety in personnel activity zone, living quarters not impacted, then electromagnetic radiation compatible equilibrium state in living quarters is optimized;
(2) if b<0 represents that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters does not meet military standard of China, will personnel's radiation safety in personnel activity zone, living quarters be impacted, then living quarters electromagnetic radiation compatibility is rectified and improved; Position and size according to the middle negative value element of the compatible abundant value matrix S ' of electrical equipment shortwave frequency range electromagnetic radiation, electrical equipment is carried out the electromagnetic compatibility rectification, and to six steps of the repetition of the indoor electric appliance after rectification second step to the, until the compatible quality of balance b of living quarters shortwave frequency range electromagnetic radiation 〉=0, be that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters satisfies the requirement of national military standard limit value, then, again electromagnetic radiation compatible equilibrium state in living quarters is optimized.
The 8th step: obtain shortwave frequency range electrical equipment ideal radiation limit value, obtain the desirable exposure limits matrix of shortwave frequency range personnel;
Specifically comprise:
Step 801: for the attenuating of the electromagnetic radiation principle much larger than common nonmetallic materials, adopt electrical equipment model covering all-metal strategy based on metal material, finish shortwave frequency range electrical equipment ideal radiation limit value simulation calculation in the maximum attenuation situation.
Use the 3 D electromagnetic FEKO of simulation software to carry out electrical equipment shortwave frequency range radiation-emitting simulation calculation, step is as follows:
(1) sets up the electrical equipment model, and adopt covering all-metal strategy to be optimized, obtain the desirable limit value solving model of living quarters shortwave frequency range;
(2) set up the electrical equipment model, and carry out the feed setting for the electrical equipment normal operating conditions;
(3) adjust electrical equipment at indoor relative position;
(4) according to the living quarters personnel activity zone of dividing in the step 1, the emulation Domain is set;
(5) finish the emulation of shortwave frequency range electrical equipment radiation-emitting.
Step: 802: adopt the emulation mode in the step 801 that m platform electrical equipment is carried out the emulation of shortwave frequency range radiation-emitting, and with the shortwave frequency range radiation-emitting simulation calculation value that collects, be denoted as SExpl.
When First electrical equipment was carried out emulation, the shortwave frequency range radiation-emitting simulation calculation value in zone 1 was designated as SExpl 1,1, the shortwave frequency range radiation-emitting simulation calculation value in zone 2 is designated as SExpl 2,1..., the shortwave frequency range radiation-emitting simulation calculation value of regional n is designated as SExpl N, 1
When second electrical equipment was carried out emulation, the shortwave frequency range radiation-emitting simulation calculation value in zone 1 was designated as SExpl 1,2, the shortwave frequency range radiation-emitting simulation calculation value in zone 2 is designated as SExpl 2,2..., the shortwave frequency range radiation-emitting simulation calculation value of regional n is designated as SExpl N, 2
......
In like manner, when m platform electrical equipment was carried out emulation, the shortwave frequency range radiation-emitting simulation calculation value in zone 1 was designated as SExpl 1, m, the shortwave frequency range radiation-emitting simulation calculation value in zone 2 is designated as SExpl 2, m..., the shortwave frequency range radiation-emitting simulation calculation value of regional n is designated as SExpl N, m
Step 803: set up the desirable exposure limits matrix S of shortwave frequency range personnel E according to collecting data in 802:
Figure BDA00002690711000101
Among the present invention, usually weigh different electrical equipment radiation-emittings at the optimum limit value of different zones of action with the unit among the desirable exposure limits matrix S of the shortwave frequency range personnel E.
The 9th step: obtain the compatible quality of balance optimum solution of living quarters shortwave frequency range electromagnetic radiation;
Shortwave frequency range electromagnetic radiation compatible equilibrium state optimization problem in living quarters can be summed up as: with the compatible quality of balance of electromagnetic radiation
Figure BDA00002690711000102
Be objective function, it is the optimization problem of finding the solution the territory that shortwave frequency range personnel expose boundary.
Exist the complicated relation of intercoupling between the element T re among the electrical equipment shortwave frequency range radiation matrix T, in the process that is optimized,
When changing certain electrical equipment for the Electro Magnetic Compatibility in certain zone, cause that corresponding element changes in the matrix T, if other elements also change in the matrix T, then matrix T is the strong coupling matrix, otherwise matrix T is the weak coupling matrix.
Specifically comprise:
Step 901: when electrical equipment shortwave frequency range radiation matrix T is the weak coupling matrix, separate between each element in the matrix.At this moment, the compatible equilibrium state optimization problem of living quarters shortwave frequency range electromagnetic radiation can be converted to the optimization problem of finding the solution following form:
max b = Σ j = 1 m Σ i = 1 n w i , j × δ i , j ′
SE<T<E
Wherein:
Figure BDA00002690711000104
δ I, j=Expl j-Tre I, j, SE<T<E represents boundary condition, the span of element is determined by corresponding element among matrix S E and the matrix E among the electrical equipment shortwave frequency range radiation matrix T.
Step 902: when electrical equipment shortwave frequency range radiation matrix T is the strong coupling matrix, need to determine the coupled relation between each element in the matrix T, thereby this coupled relation is converted into the constraint condition of optimization problem.
(1) when the coupled relation of element among the electrical equipment shortwave frequency range radiation matrix T when being coupled in twos, i.e. element T re in the matrix T U, vAnd Tre U ', v 'Between relational expression be
Figure BDA00002690711000105
U wherein, u ' ∈ [1, n], v, v ' ∈ [1, m], f () represents a certain funtcional relationship, adopts Taylor series that relational expression is launched, and can obtain:
Tre u , v = a 0 + a 1 · Tre u ′ , v ′ + a 2 · Tre u ′ , v ′ 2 + . . . + a t · Tre u ′ , v ′ t + . . .
Wherein: t represents the corresponding exponent number of Taylor series, is integer, t 〉=0, a 0, a 1, a 2..., a t... the coefficient of expression t rank Taylor series;
Adopt the linear programming strategy that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is analyzed, remove the above higher order term of second order and second order, obtain:
Tre u,v=a 0+a 1·Tre u′v′
Then the electromagnetic compatibility optimization problem under the coupling condition can be converted to the optimization problem of finding the solution following form in twos:
max b = Σ j = 1 m Σ i = 1 n w i , j × δ i , j ′
SE < T < E Tre u , v = a 0 + a 1 &CenterDot; Tre u &prime; , v &prime;
Wherein:
Figure BDA00002690711000114
δ I, j=Expl j-Tre I, j
Adopt programming theory to realize the optimization problem of the compatible quality of balance b of shortwave frequency range electromagnetic radiation, need to revise former Optimization Solution territory, make δ " I, j=Expl j-SExpl I, j, then optimization problem can change into:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
&delta; i , j &prime; < &delta; i , j &prime; &prime; Tre u , v = a 0 + a 1 &CenterDot; Tre u &prime; , v &prime;
Wherein:
Figure BDA00002690711000117
δ I, j=Expl j-Tre I, j, δ " I, j=Expl j-SExp I, j
(2) when the coupled relation of element among the electrical equipment shortwave frequency range radiation matrix T be multielement when intercoupling, i.e. element in the matrix T
Figure BDA00002690711000118
Figure BDA00002690711000119
Figure BDA000026907110001110
,
Figure BDA000026907110001111
Between the pass be:
Tre u 1 , v 1 = f ( Tre u 2 , v 2 , Tre u 3 , v 3 , . . . , Tre u w , v w )
Wherein: u 1, u 2, u 3..., u w∈ [1, n], v 1, v 2, V3..., v w∈ [1, m], w≤min{n, m}, adopt Taylor series that relational expression is launched and can be obtained:
Tre u 1 , v 1 = &Sigma; t = 0 &infin; [ a 1 , t &CenterDot; ( Tre u 2 , v 2 ) t ] + &Sigma; t = 0 &infin; [ a 2 , t &CenterDot; ( Tre u 3 , v 3 ) t ] + . . . + &Sigma; t = 0 &infin; [ a w - 1 , t &CenterDot; ( Tre u w , v w ) t ] .
Wherein, t represents the corresponding exponent number of Taylor series, is integer, t 〉=0, a 1, t, a 2, t..., a W-1, tThe coefficient that represents each element t rank Taylor series;
Adopt the linear programming strategy that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is analyzed, remove the above higher order term of second order and second order, obtain:
Tre u 1 , v 1 = a 1,0 + a 1,1 &CenterDot; Tre u 2 , v 2 + a 2,0 + a 2,1 &CenterDot; Tre u 3 , v 3 + . . . + a w - 1,0 + a w - 1,1 &CenterDot; Tre u w , v w
Can obtain the element in the matrix T
Figure BDA00002690711000122
Figure BDA00002690711000123
Figure BDA00002690711000124
, Between restriction relation:
a 1,0 + a 1,1 &CenterDot; Tre u 2 , v 2 + a 2,0 + a 2,1 &CenterDot; Tre u 3 , v 3 + . . . + a w - 1,0 + a w - 1,1 &CenterDot; Tre u w , v w - Tre u 1 , v 1 = 0
Make respectively A=[a 1,1, a 2,1..., a W-1,1],
X = [ Tre u 2 , v 2 , Tre u 3 , v 3 , . . . , Tre u w , v w , Tre u 1 , v 1 ] T ,
c=-a 1,0-a 2,0-…-a w-1,0
Then restriction relation can be expressed as AX=c, and then the electromagnetic compatibility optimization problem that intercouples under the condition of multielement can be converted to the optimization problem of finding the solution following form:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
SE < T < E A &CenterDot; X = c
Wherein:
Figure BDA000026907110001210
δ I, j=Expl j-Tre I, j
Adopt programming theory to realize the optimization problem of the compatible quality of balance b of shortwave frequency range electromagnetic radiation, need to revise former Optimization Solution territory, make δ " I, j=Expl j-SExpl I, j, then optimization problem can change into:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
&delta; i , j &prime; < &delta; i , j &prime; &prime; A &CenterDot; X = c
Wherein:
Figure BDA000026907110001213
δ I, j=Expl j-Tre I, j, δ " I, j=Expl j-SExp T, j
Step 903: according to the objective function that provides in step 901 or the step 902 and find the solution the territory, adopt the simplicial method strategy, finish the optimization of objective function, obtain the maximal value of the compatible quality of balance b of shortwave frequency range electromagnetic radiation, and corresponding electrical equipment shortwave frequency range radiation matrix T ' during the compatible quality of balance b of shortwave frequency range electromagnetic radiation maximal value.
Make Δ T=T-T ', obtain the compatible matrix Δ T that adjusts of living quarters shortwave frequency range electromagnetic radiation:
Figure BDA00002690711000131
Δ Tre wherein I, jBe that j electrical equipment is at regional i electromagnetic radiation intensity adjusted value.
Among the present invention, different electrical equipment are usually weighed for the adjusted value of the radiation-emitting of zones of different by the compatible unit that adjusts among the matrix Δ T with living quarters shortwave frequency range electromagnetic radiation.
The tenth step: according to the compatible matrix Δ T that adjusts of living quarters shortwave frequency range electromagnetic radiation, shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is optimized;
According to the compatible matrix Δ T interior element Δ Tre that adjusts of living quarters shortwave frequency range electromagnetic radiation I, j, determine that electrical equipment needs the shortwave frequency range radiation intensity that reduces in each zone, be specially:
Δ Tre 1,1, Δ Tre 2,1..., Δ Tre N, 1, for First electrical equipment the zone 1, the zone 2 ..., the shortwave frequency range radiation intensity of the required reduction of regional n;
Δ Tre 1,2, Δ Tre 2,2..., Δ Tre N, 2, be second electrical equipment in zone 1, zone 2 ..., the shortwave frequency range radiation intensity of the required reduction of regional n;
......
In like manner, Δ Tre 1, m, Δ Tre 2, m..., Δ Tre N, m, be m platform electrical equipment in zone 1, zone 2 ..., the shortwave frequency range radiation intensity of the required reduction of regional n;
According to the shortwave frequency range electromagnetic radiation compatible value of adjusting each element among the matrix Δ T in living quarters is adjusted in the radiation intensity of regional each electrical equipment respectively, method of adjustment comprises:
(1) under the prerequisite that satisfies the electrical function requirement, changes the electrical equipment of different radiation intensity;
(2) in allowed band, adjust the position of electrical equipment;
(3) shield effectiveness of raising or reduction personnel activity zone body of wall;
Wherein, Δ Tre I, jAbsolute value less, the expression personnel activity zone compatible equilibrium state of shortwave frequency range electromagnetic radiation is better, the radiation that the radiation that is subject to during the personnel activity totally is subject to is just less.
Return second step, electrical equipment after adjusting is optimized again, until the shortwave frequency range electromagnetic radiation compatible matrix Δ T interior element value of adjusting in living quarters reaches the setting value of customer requirements or the designing requirement in living quarters, when all elements among the matrix Δ T is 0, illustrate that then the living quarters has reached the compatible equilibrium state optimum state of shortwave frequency range electromagnetic radiation among the present invention.
Embodiment
Set five electrical equipment living quarters personnel activity zone personnel's radiation safety impacted, utilize means of testing obtain five electrical equipment respectively in the parlor, the radiation intensity value of three the personnel zones of action in bedroom and kitchen, the result is as shown in the table:
Table 1 shortwave frequency range radiation intensity test result
Figure BDA00002690711000141
According to factors such as the operating characteristic of five electrical equipment, radiation modes, adopt corresponding computing formula, the shortwave frequency range personnel activity zone exposure limits of each electrical equipment is calculated, the result is as shown in the table:
Table 2 shortwave frequency range radiation intensity limit value
Figure BDA00002690711000142
Obtain electrical equipment shortwave frequency range radiation matrix T:
T = 13.52 15.2 23.78 3.16 4.07 10.89 17.15 27.22 7.21 10.56 4.73 5.11 14.39 5.84 11.77
And electrical equipment shortwave frequency range personnel exposure limits matrix E:
E = 15.26 21.94 30.13 8.17 12.31 15.26 21.94 30.13 8.17 12.31 15.26 21.94 30.13 8.17 12.31
Employing difference strategy S=E-T finds the solution matrix S and each element in the matrix S is carried out normalized, obtains the compatible abundant value matrix S' of electrical equipment shortwave frequency range electromagnetic radiation:
S = 1.74 6.74 6.35 5.01 8.24 4.37 4.79 2.91 0.96 1.75 10.53 16.83 15.74 2.33 0.54
S &prime; = 0.114 0.307 0.211 0.613 0.669 0.286 0.218 0.097 0.118 0.142 0.69 0.767 0.522 0.285 0.044
According among the GJB72A-2002 " electromagnetic interference (EMI) and electromagnetic compatibility term " to the key category classification principle of subsystem and equipment, and in conjunction with personnel activity zone classification weight, calculate and obtain electrical equipment shortwave frequency range radiation weight matrix W:
HA = { 1 3 , 1 3 , 1 3 , 1 3 , 1 3 } T
EM={0.1,0.2,0.2,0.4,0.1}
W = 0.033 0.067 0.067 0.133 0.033 0.033 0.067 0.067 0.133 0.033 0.033 0.067 0.067 0.133 0.033
Computing formula in conjunction with electromagnetic compatibility quality of balance b
Figure BDA00002690711000155
Calculate, namely obtain the compatible quality of balance b=0.3418 of this living quarters shortwave frequency range electromagnetic radiation.
The result of calculation of electromagnetic compatibility quality of balance b shows b>0, illustrates that the compatible equilibrium state of this living quarters shortwave frequency range electromagnetic radiation meets military standard of China, can not impact the zone of action personal security.
Radiation intensity to each electrical equipment zones of different in FEKO software is carried out emulation, and simulation result is as shown in the table:
Table three shortwave frequency range radiation intensity simulation result
Figure BDA00002690711000156
According to simulation result, set up the desirable exposure limits matrix S of shortwave frequency range personnel E,
SE = 8.35 10.44 18.36 1.68 3.01 6.09 15.2 22.74 5.19 8.42 2.17 4.61 8.28 3.77 3.24
Consider between five electrical equipment to be the weak coupling relation, thus its objective function with find the solution the territory and be:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
SE<T<E
Wherein:
Figure BDA00002690711000162
δ I, j=Expl j-Tre I, j
In conjunction with programming theory, the optimum solution that adopts the simplicial method strategy to finish the compatible quality of balance b of electromagnetic radiation is calculated, and obtains: max b=0.5348 obtains the compatible matrix Δ T that adjusts of living quarters shortwave frequency range electromagnetic radiation:
&Delta;T = 5.17 4.76 5.42 1.48 1.06 4.8 1.95 4.48 2.02 2.14 2.56 0.5 6.11 2.07 3.24
According to element Δ Tre among the Δ T I, jValue five electrical equipment carried out the compatible equilibrium state of electromagnetic radiation optimize and revise, repeat the solution procedure of the compatible quality of balance b of electromagnetic radiation, obtain the actual emanations electromagnetic compatibility quality of balance b=0.4883 after electrical equipment is adjusted.There is certain error in result of calculation herein with the result who utilizes simplicial method to carry out obtaining when optimum solution is calculated, and mainly is owing to initiatively having ignored the weak coupling relation of appliance chamber when using simplicial method to calculate.
The compatible quality of balance b of shortwave frequency range electromagnetic radiation after adjusting is carried out optimum solution again to be calculated, according to result of calculation electrical equipment is adjusted, and the optimum solution of the compatible quality of balance b of shortwave frequency range electromagnetic radiation after calculating is adjusted again, form the cyclic process of continuing to optimize.Customer requirements b 〉=0.6, through after seven loop optimizations, the compatible quality of balance b=0.617 of electromagnetic radiation this moment, it is best that living quarters Electro Magnetic Compatibility equilibrium state reaches.

Claims (1)

1. one kind based on the compatible optimization method of the electrical equipment electromagnetic radiation of living quarters exposure limits, for the shortwave frequency range refer to 3MHz~30MHz, method comprises following step:
The first step: divide living quarters personnel activity zone;
Zone of action according to operating personnel in room layout, structure and the room use procedure, adopt the mark GJB5313-2004 of army " electromagnetic radiation exposure restriction and measuring method " that the living quarters is divided, obtain living quarters personnel activity zone, and difference called after: zone 1, zone 2, zone 3 ... zone n, n represents the quantity of zoning;
Second step: measure the radiation intensity of electrical equipment shortwave frequency range in zones of different, obtain electrical equipment shortwave frequency range radiation matrix;
Measuring table comprises computing machine, measuring receiver, attenuator and tours antenna; Computing machine, measuring receiver, attenuator, tours antenna connect by wire successively;
Tours antenna is placed in the zone to be measured, electrical equipment is when work, tours antenna receives the shortwave frequency range electromagnetic radiation of electrical equipment, obtain shortwave frequency range electromagnetic radiation signal, attenuator is decayed to shortwave frequency range electromagnetic radiation signal, the computer controlled measurement receiver gathers the shortwave frequency range electromagnetic radiation signal after decaying, and obtains the shortwave frequency range electromagnetic radiation intensity of electrical equipment in this zone, by computer recording shortwave frequency range electromagnetic radiation intensity;
Concrete steps are:
Step 201: adopt measuring table, measure the shortwave frequency range electromagnetic radiation intensity of electrical equipment in each zone, establish the total m platform electrical equipment in living quarters, be specially:
Adopt measuring table, in zone 1, measure, open First electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of First electrical equipment, be designated as Tre 1,1, close First electrical equipment, open second electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of second electrical equipment, be designated as Tre 1,2, close second electrical equipment ..., in like manner, open m platform electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of m platform electrical equipment, be designated as Tre 1, m, close m platform electrical equipment; Finishing the electrical equipment shortwave frequency range electromagnetic radiation intensity in zone 1 measures;
Adopt measuring table, in zone 2, measure, open First electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of First electrical equipment, be designated as Tre 2,1, close First electrical equipment, open second electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of second electrical equipment, be designated as Tre 2,2, close second electrical equipment ..., in like manner, open m platform electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of m platform electrical equipment, be designated as Tre 2, m, close m platform electrical equipment; Finishing the electrical equipment shortwave frequency range electromagnetic radiation intensity in zone 2 measures;
......
In like manner, adopt measuring table, in regional n, measure, open First electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of First electrical equipment, be designated as Tre N, 1, close First electrical equipment, open second electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of second electrical equipment, be designated as Tre N, 2, close second electrical equipment ..., in like manner, open m platform electrical equipment, measure the shortwave frequency range electromagnetic radiation intensity of m platform electrical equipment, be designated as Tre N, m, close m platform electrical equipment; Finishing the electrical equipment shortwave frequency range electromagnetic radiation intensity of regional n measures;
Step 202: according to the measurement result that obtains in the step 201, set up electrical equipment shortwave frequency range radiation matrix T:
Figure FDA00002690710900021
The 3rd step: obtain the shortwave frequency range personnel activity zone exposure limits of m platform electrical equipment, obtain shortwave frequency range personnel exposure limits matrix;
The electromagnetic radiation of shortwave frequency range comprises continuous wave, two kinds of emission types of pulsating wave, determine the shortwave frequency range type of m platform electrical equipment, obtain the shortwave frequency range personnel operating area exposure limits of electrical equipment, among the GJB5313-2004 to definite method of zone of action shortwave frequency range continuous wave, pulsating wave exposure limits be:
(1) exposure limits of living quarters personnel activity zone shortwave frequency range continuous wave exposure is:
Figure FDA00002690710900022
(2) exposure limits of living quarters personnel activity zone shortwave frequency range pulsating wave exposure is:
Figure FDA00002690710900023
Wherein, f represents the radiation frequency of electrical equipment, and unit is MHz, and the shortwave frequency range personnel activity zone exposure limits that obtains m platform electrical equipment is:
The shortwave frequency range personnel activity zone exposure limits of First electrical equipment is designated as Expl 1
The shortwave frequency range personnel activity zone exposure limits of second electrical equipment is designated as Expl 2
......
The shortwave frequency range personnel activity zone exposure limits of m platform electrical equipment is designated as Expl m
Set up shortwave frequency range personnel exposure limits matrix E:
Figure FDA00002690710900031
The 4th step: obtain the compatible abundant value matrix of electrical equipment shortwave frequency range electromagnetic radiation;
Step 401: the electrical equipment shortwave frequency range radiation matrix T that obtains in the step 202 and the shortwave frequency range personnel exposure limits matrix E that obtains in the 3rd step are n * m rank matrix, carry out matrix and subtract each other S=E-T, obtain:
δ i,j=Expl j-Tre i,j
Wherein, the row of i representing matrix, the row of j representing matrix, δ I, jBe element corresponding in the matrix S:
Figure FDA00002690710900032
Step 402: each element in the matrix S is advanced to go respectively normalized:
&delta; i , j &prime; = &delta; i , j Expl j
Wherein, δ ' I, jExpression δ I, jValue after the normalized, Expl jThe value of arbitrary element in the j row among the representing matrix E obtains the compatible abundant value matrix S' of electrical equipment shortwave frequency range electromagnetic radiation:
Figure FDA00002690710900034
If the negative value element occurs among the compatible abundant value matrix S ' of electrical equipment shortwave frequency range electromagnetic radiation, according to Bucket Principle, make then that all values on the occasion of element are 0, matrix S ' in only keep the negative value element;
The 5th step: obtain each electrical equipment radiation weights of shortwave frequency range, and obtain electrical equipment shortwave frequency range radiation weight matrix;
Step 501: according among the GJB72A-2002 " electromagnetic interference (EMI) and electromagnetic compatibility term " to the key category classification principle of subsystem and equipment, obtain m platform electrical equipment electromagnetic compatibility classification indicators EML={eml 1, eml 2..., eml m, be specially:
According to GJB72A-2002 " electromagnetic interference (EMI) and electromagnetic compatibility term ", the key classification of subsystem and equipment is divided into following three classes:
(1) this class electromagnetic compatibility problem of I class may cause that the lost of life, delivery vehicle are impaired, tasks interrupt, emission of a high price postpones or unacceptable system effectiveness descends;
(2) this class electromagnetic compatibility problem of II class may cause delivery vehicle fault, system effectiveness to descend, and cause task to finish;
(3) this class electromagnetic compatibility problem of III class may cause noise, slight discomfort or performance degradation, but can not reduce the expection validity of system;
Adopt the analytical hierarchy process strategy, the electromagnetic compatibility classification indicators that the electrical equipment of I class is satisfied in acquisition are AA; The electromagnetic compatibility classification indicators that the electrical equipment of II class is satisfied in acquisition are AB; The electromagnetic compatibility classification indicators that the electrical equipment of III class is satisfied in acquisition are AC, and then the electromagnetic compatibility classification indicators of m platform electrical equipment are eml s = AA AB AC , And AA>AB>AC, 1≤s≤m;
Step 502: obtain electromagnetic compatibility classification weight;
To m platform electrical equipment electromagnetic compatibility classification indicators EML={eml 1, eml 2..., eml mCarry out the data processing, obtain electrical equipment electromagnetic compatibility classification weight EM={em 1, em 2..., em m;
Wherein: em r = eml r &Sigma; q = 1 m eml q &times; 100 % , 1≤r≤m,1≤q≤m;
Em 1The electromagnetic compatibility classification indicators eml of expression First electrical equipment 1Weight;
Em 2The electromagnetic compatibility classification indicators eml of second electrical equipment of expression 2Weight;
......
Em mThe electromagnetic compatibility classification indicators eml that represents m platform electrical equipment mWeight;
Step 503: obtain personnel activity zone classification weight;
The classification indicators HAL={1 of n personnel zone of action, 1 ..., 1} obtains personnel activity zone classification weight HA = { 1 n , 1 n , . . . , 1 n } T ;
Step 504: adopt the power of tax to concern W=HA * EM, to the electrical equipment electromagnetic compatibility classification weight EM={em that obtains in the step 502 1, em 2..., em mAnd step 503 in personnel activity's zone classification weight of obtaining
Figure FDA00002690710900051
Process, obtain electrical equipment shortwave frequency range radiation weight matrix W, wherein, w I, jBe element corresponding in the matrix W:
Figure FDA00002690710900052
The 6th step: obtain the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation;
Adopt respective items weighted sum strategy
Figure FDA00002690710900053
Element among the shortwave frequency range electromagnetic radiation abundant value matrix S ' of compatibility that obtains in the 4th step and the electrical equipment shortwave frequency range radiation weight matrix W that obtains in the 5th step is carried out data process, obtain the compatible quality of balance b of living quarters shortwave frequency range electromagnetic radiation;
The 7th step: according to the compatible quality of balance of living quarters shortwave frequency range electromagnetic radiation that the 6th step obtained, judge whether living quarters electromagnetic radiation compatibility is rectified and improved or optimized;
(1) if b 〉=0 represents that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters meets military standard of China, can personnel's radiation safety in personnel activity zone, living quarters not impacted, then electromagnetic radiation compatible equilibrium state in living quarters is optimized;
(2) if b<0 represents that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters does not meet military standard of China, will personnel's radiation safety in personnel activity zone, living quarters be impacted, then living quarters electromagnetic radiation compatibility is rectified and improved; Position and size according to the middle negative value element of the compatible abundant value matrix S ' of electrical equipment shortwave frequency range electromagnetic radiation, electrical equipment is carried out the electromagnetic compatibility rectification, and to six steps of the repetition of the indoor electric appliance after rectification second step to the, until the compatible quality of balance b of living quarters shortwave frequency range electromagnetic radiation 〉=0, be that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters satisfies the requirement of national military standard limit value, then, again electromagnetic radiation compatible equilibrium state in living quarters is optimized;
The 8th step: obtain shortwave frequency range electrical equipment ideal radiation limit value, obtain the desirable exposure limits matrix of shortwave frequency range personnel;
Specifically comprise:
Step 801: adopt electrical equipment model covering all-metal strategy, finish shortwave frequency range electrical equipment ideal radiation limit value simulation calculation in the maximum attenuation situation;
Carry out electrical equipment shortwave frequency range radiation-emitting simulation calculation, step is as follows:
(1) sets up the electrical equipment model, and adopt covering all-metal strategy to be optimized, obtain the desirable limit value solving model of living quarters shortwave frequency range;
(2) set up the electrical equipment model, and carry out the feed setting for the electrical equipment normal operating conditions;
(3) adjust electrical equipment at indoor relative position;
(4) according to the living quarters personnel activity zone of dividing in the step 1, the emulation Domain is set;
(5) finish the emulation of shortwave frequency range electrical equipment radiation-emitting;
Step: 802: adopt the emulation mode in the step 801 that m platform electrical equipment is carried out the emulation of shortwave frequency range radiation-emitting, and with the shortwave frequency range radiation-emitting simulation calculation value that collects, be denoted as SExpl;
When First electrical equipment was carried out emulation, the shortwave frequency range radiation-emitting simulation calculation value in zone 1 was designated as SExpl 1,1, the shortwave frequency range radiation-emitting simulation calculation value in zone 2 is designated as SExpl 2,1..., the shortwave frequency range radiation-emitting simulation calculation value of regional n is designated as SExpl N, 1
When second electrical equipment was carried out emulation, the shortwave frequency range radiation-emitting simulation calculation value in zone 1 was designated as SExpl 1,2, the shortwave frequency range radiation-emitting simulation calculation value in zone 2 is designated as SExpl 2,2..., the shortwave frequency range radiation-emitting simulation calculation value of regional n is designated as SExpl N, 2
......
In like manner, when m platform electrical equipment was carried out emulation, the shortwave frequency range radiation-emitting simulation calculation value in zone 1 was designated as SExpl 1, m, the shortwave frequency range radiation-emitting simulation calculation value in zone 2 is designated as SExpl 2, m..., the shortwave frequency range radiation-emitting simulation calculation value of regional n is designated as SExpl N, m
Step 803: set up the desirable exposure limits matrix S of shortwave frequency range personnel E according to collecting data in 802:
Figure FDA00002690710900061
The 9th step: obtain the compatible quality of balance optimum solution of living quarters shortwave frequency range electromagnetic radiation;
Shortwave frequency range electromagnetic radiation compatible equilibrium state optimization problem in living quarters can be summed up as: with the compatible quality of balance of electromagnetic radiation
Figure FDA00002690710900071
Be objective function, it is the optimization problem of finding the solution the territory that shortwave frequency range personnel expose boundary;
When changing certain electrical equipment for the Electro Magnetic Compatibility in certain zone, cause that corresponding element changes in the matrix T, if other elements also change in the matrix T, then matrix T is the strong coupling matrix, otherwise matrix T is the weak coupling matrix;
Specifically comprise:
Step 901: when electrical equipment shortwave frequency range radiation matrix T is the weak coupling matrix, separate between each element in the matrix; At this moment, the compatible equilibrium state optimization problem of living quarters shortwave frequency range electromagnetic radiation can be converted to the optimization problem of finding the solution following form:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
SE<T<E
Wherein:
Figure FDA00002690710900073
δ I, j=Expl j-Tre I, j, SE<T<E represents boundary condition, the span of element is determined by corresponding element among matrix S E and the matrix E among the electrical equipment shortwave frequency range radiation matrix T;
Step 902: when electrical equipment shortwave frequency range radiation matrix T is the strong coupling matrix, need to determine the coupled relation between each element in the matrix T, thereby this coupled relation is converted into the constraint condition of optimization problem;
(1) when the coupled relation of element among the electrical equipment shortwave frequency range radiation matrix T when being coupled in twos, i.e. element T re in the matrix T U, vAnd Tre U ', V 'Between relational expression be
Figure FDA00002690710900074
U wherein, u ' ∈ [1, n], v, v ' ∈ [1, m], f () represents a certain funtcional relationship, adopts Taylor series that relational expression is launched, and can obtain:
Tre u , v = a 0 + a 1 &CenterDot; Tre u &prime; , v &prime; + a 2 &CenterDot; Tre u &prime; , v &prime; 2 + . . . + a t &CenterDot; Tre u &prime; , v &prime; t + . . .
Wherein: t represents the corresponding exponent number of Taylor series, is integer, t 〉=0, a 0, a 1, a 2..., a t... the coefficient of expression t rank Taylor series;
Adopt the linear programming strategy that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is analyzed, remove the above higher order term of second order and second order, obtain:
Tre u,v=a 0+a 1·Tre u′v′
Then the electromagnetic compatibility optimization problem under the coupling condition can be converted to the optimization problem of finding the solution following form in twos:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
SE < T < E Tre u , v = a 0 + a 1 &CenterDot; Tre u &prime; , v &prime;
Wherein:
Figure FDA00002690710900083
δ I, j=Expl j-Tre I, j
Adopt programming theory to realize the optimization problem of the compatible quality of balance b of shortwave frequency range electromagnetic radiation, need to revise former Optimization Solution territory, make δ " I, j=Expl j-SExpl I, j, then optimization problem can change into:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
&delta; i , j &prime; < &delta; i , j &prime; &prime; Tre u , v = a 0 + a 1 &CenterDot; Tre u &prime; , v &prime;
Wherein:
Figure FDA00002690710900086
δ I, j=Expl j-Tre I, j, δ " I, j=Expl j-SExpl I, j
(2) when the coupled relation of element among the electrical equipment shortwave frequency range radiation matrix T be multielement when intercoupling, i.e. element in the matrix T
Figure FDA00002690710900089
,
Figure FDA000026907109000810
Between the pass be:
Tre u 1 , v 1 = f ( Tre u 2 , v 2 , Tre u 3 , v 3 , . . . , Tre u w , v w )
Wherein: u 1, u 2, u 3..., u w∈ [1, n], v 1, v 2, v 3..., v w∈ [1, m], w≤min{n, m}, adopt Taylor series that relational expression is launched and can be obtained:
Tre u 1 , v 1 = &Sigma; t = 0 &infin; [ a 1 , t &CenterDot; ( Tre u 2 , v 2 ) t ] + &Sigma; t = 0 &infin; [ a 2 , t &CenterDot; ( Tre u 3 , v 3 ) t ] + . . . + &Sigma; t = 0 &infin; [ a w - 1 , t &CenterDot; ( Tre u w , v w ) t ] ;
Wherein, t represents the corresponding exponent number of Taylor series, is integer, t 〉=0, a 1, t, a 2, t..., a W-1, tThe coefficient that represents each element t rank Taylor series;
Adopt the linear programming strategy that shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is analyzed, remove the above higher order term of second order and second order, obtain:
Tre u 1 , v 1 = a 1,0 + a 1,1 &CenterDot; Tre u 2 , v 2 + a 2,0 + a 2,1 &CenterDot; Tre u 3 , v 3 + . . . + a w - 1,0 + a w - 1,1 &CenterDot; Tre u w , v w
Can obtain the element in the matrix T
Figure FDA000026907109000814
Figure FDA000026907109000815
Figure FDA000026907109000816
,
Figure FDA000026907109000817
Between restriction relation:
a 1,0 + a 1,1 &CenterDot; Tre u 2 , v 2 + a 2,0 + a 2,1 &CenterDot; Tre u 3 , v 3 + . . . + a w - 1,0 + a w - 1,1 &CenterDot; Tre u w , v w - Tre u 1 , v 1 = 0
Make respectively A=[a 1,1, a 2,1..., a W-1,1],
X = [ Tre u 2 , v 2 , Tre u 3 , v 3 , . . . , Tre u w , v w , Tre u 1 , v 1 ] T ,
c=-a 1,0-a 2,0-…-a w-1,0
Then restriction relation can be expressed as AX=c, and then the electromagnetic compatibility optimization problem that intercouples under the condition of multielement can be converted to the optimization problem of finding the solution following form:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
SE < T < E A &CenterDot; X = c
Wherein:
Figure FDA00002690710900094
δ I, j=Expl j-Tre I, j
Adopt programming theory to realize the optimization problem of the compatible quality of balance b of shortwave frequency range electromagnetic radiation, need to revise former Optimization Solution territory, make δ " I, j=Expl j-SExpl I, j, then optimization problem can change into:
max b = &Sigma; j = 1 m &Sigma; i = 1 n w i , j &times; &delta; i , j &prime;
&delta; i , j &prime; < &delta; i , j &prime; &prime; A &CenterDot; X = c
Wherein:
Figure FDA00002690710900097
δ I, j=Expl j-Tre I, j, δ " I, j=Expl j-SExpl J, j
Step 903: according to the objective function that provides in step 901 or the step 902 and find the solution the territory, adopt the simplicial method strategy, finish the optimization of objective function, obtain the maximal value of the compatible quality of balance b of shortwave frequency range electromagnetic radiation, and corresponding electrical equipment shortwave frequency range radiation matrix T ' during the compatible quality of balance b of shortwave frequency range electromagnetic radiation maximal value;
Make Δ T=T-T ', obtain the compatible matrix Δ T that adjusts of living quarters shortwave frequency range electromagnetic radiation:
Figure FDA00002690710900098
Δ Tre wherein I, jBe that j electrical equipment is at regional i electromagnetic radiation intensity adjusted value;
The tenth step: according to the compatible matrix Δ T that adjusts of living quarters shortwave frequency range electromagnetic radiation, shortwave frequency range electromagnetic radiation compatible equilibrium state in living quarters is optimized;
According to the compatible matrix Δ T interior element Δ Tre that adjusts of living quarters shortwave frequency range electromagnetic radiation I, j, determine that electrical equipment needs the shortwave frequency range radiation intensity that reduces in each zone, be specially:
Δ Tre 1,1, Δ Tre 2,1..., Δ Tre N, 1, for First electrical equipment the zone 1, the zone 2 ..., the shortwave frequency range radiation intensity of the required reduction of regional n;
Δ Tre 1,2, Δ Tre 2,2..., Δ Tre N, 2, be second electrical equipment in zone 1, zone 2 ..., the shortwave frequency range radiation intensity of the required reduction of regional n;
......
In like manner, Δ Tre 1, m, Δ Tre 2, m..., Δ Tre N, m, be m platform electrical equipment in zone 1, zone 2 ..., the shortwave frequency range radiation intensity of the required reduction of regional n;
According to the shortwave frequency range electromagnetic radiation compatible value of adjusting each element among the matrix Δ T in living quarters is adjusted in the radiation intensity of regional each electrical equipment respectively, method of adjustment comprises:
(1) under the prerequisite that satisfies the electrical function requirement, changes the electrical equipment of different radiation intensity;
(2) in allowed band, adjust the position of electrical equipment;
(3) shield effectiveness of raising or reduction personnel activity zone body of wall;
Wherein, Δ Tre I, jAbsolute value less, the expression personnel activity zone compatible equilibrium state of shortwave frequency range electromagnetic radiation is better, the radiation that the radiation that is subject to during the personnel activity totally is subject to is just less;
Return second step, the electrical equipment after adjusting is optimized again, until the shortwave frequency range electromagnetic radiation compatible matrix Δ T interior element value of adjusting in living quarters reaches the setting value of customer requirements or the designing requirement in living quarters.
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CN102722636A (en) * 2012-05-16 2012-10-10 北京航空航天大学 Method for quantitative evaluation of complexity of electromagnetic environment faced by avionics system

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CN105975713A (en) * 2016-05-20 2016-09-28 北京航空航天大学 Method for predicting electromagnetic radiation of electronic circuit through source reconstruction
CN105975713B (en) * 2016-05-20 2019-02-05 北京航空航天大学 A method of electronic circuit electromagnetic radiation is predicted using source method for reconstructing
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