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CN102520674A - Refrigeration scheduling system and method by adopting back-pressure type cogeneration unit and wind-power output - Google Patents

Refrigeration scheduling system and method by adopting back-pressure type cogeneration unit and wind-power output Download PDF

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Publication number
CN102520674A
CN102520674A CN2011103238696A CN201110323869A CN102520674A CN 102520674 A CN102520674 A CN 102520674A CN 2011103238696 A CN2011103238696 A CN 2011103238696A CN 201110323869 A CN201110323869 A CN 201110323869A CN 102520674 A CN102520674 A CN 102520674A
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refrigeration
pressure type
chp
back pressure
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CN102520674B (en
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龙虹毓
吴锴
杨玉龙
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Xian Jiaotong University
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Xian Jiaotong University
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/27Relating to heating, ventilation or air conditioning [HVAC] technologies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/62Absorption based systems
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00Energy generation through renewable energy sources
    • Y02E10/70Wind energy
    • Y02E10/72Wind turbines with rotation axis in wind direction

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Abstract

The invention discloses a refrigeration scheduling system and method by adopting a back-pressure type cogeneration unit and wind-power output. The method comprises the following steps of: by combined control of the back-pressure type cogeneration unit and refrigerating load, the equivalent generation of the wind power is adjusted to be consistent with the actual need of the system, so that the pressure of grid paralleling is reduced; a user adopts two modes for refrigeration, namely, a centralized heat-absorption type refrigerator and an air conditioner for power consumption; and under the condition that the power supply and the refrigeration supply are met, the hot-water flow supplied to the centralized heat-absorption type refrigerator is reduced and is compensated by consumption of power and refrigeration, the power generation output is also changed correspondingly, and the supply is met according to the change of power consumption load and the matching of the wind power generation. The change of the cogeneration output and the power consumption load condition of the user is adjusted by fluctuation of wind power generation, so that the matching between the equivalent output of the wind power generation at the user side and the wind power output needed by the system is realized.

Description

Back pressure type cogeneration units and wind-powered electricity generation exert oneself refrigeration dispatching system and method
Technical field
The invention belongs to clean energy resource comprehensive utilization technique field, relate to a kind of back pressure type cogeneration units and wind-powered electricity generation exert oneself refrigeration dispatching system and method.
Background technology
Regenerative resource has the characteristics of green cleaning, and development in recent years rapidly.But with the wind-power electricity generation is example, and wind-power electricity generation is when providing the cleaning low-carbon (LC) energy, and being incorporated into the power networks on a large scale of wind power plant brought adverse effect also for the power grid security economical operation.After the large-scale wind generating field is incorporated into the power networks since its to go out fluctuation bigger, and power swing is usually opposite with the power load fluctuation tendency.This anti-peak regulation characteristic of wind-power electricity generation will cause the further expansion of system's peak-valley difference, strengthen the difficulty of dispatching of power netwoks, all will produce a series of influences to dispatching of power netwoks operation, Control of Voltage, peak load regulation network etc.Because correlative study and imperfection, abandon can phenomenon serious.
Summary of the invention
The problem that the present invention solves is to provide a kind of back pressure type cogeneration units and wind-powered electricity generation exert oneself refrigeration dispatching system and method, through the comprehensive regulation to heat energy, electric energy, realizes smoothly exerting oneself of wind-power electricity generation, effective utilization of raising wind-power electricity generation.
The present invention realizes through following technical scheme:
A kind of back pressure type cogeneration units and the wind-powered electricity generation refrigeration dispatching system of exerting oneself comprises:
The back pressure type cogeneration units that is used for output electric power and the hot water that supplies refrigeration;
Centralized thermal absorption formula refrigeration machine, input end connects the hot water outlet of back pressure type cogeneration units, produces cold water after the heat interchange, and output terminal connects the cooling pipeline;
The wind power generating set that is used for output electric power;
Air conditioner through the power cable net user parallelly connected with back pressure type cogeneration units and wind power generating set; The air conditioner teleswitch of control air conditioner;
Gather the ammeter of the non-refrigeration power consumption of user;
The user's who is connected with centralized thermal absorption formula refrigeration machine through the cooling pipeline refrigeration fan coil pipe; Refrigeration fan coil pipe cold water consumes gauging table, detects the cold water consumption of refrigeration fan coil pipe; The refrigeration fan coil pipe device teleswitch of control refrigeration fan coil pipe;
The first remote centralized controller is gathered the hot water flow that comprises the confession refrigeration of back pressure type cogeneration units and the production capacity information of generated output electric weight, sends the production capacity information of gathering to the integrated dispatch control device; The first remote centralized controller also receives the scheduling control signal that the integrated dispatch control device is sent, and according to the action of scheduling control signal control back pressure type cogeneration units control actuating unit;
The second remote centralized controller, the production capacity information of gathering the generated output electric weight of wind power generating set sends the production capacity information of gathering to the integrated dispatch control device;
The 3rd remote centralized controller; Record user's refrigeration fan coil pipe and the pipeline range information between the centralized thermal absorption formula refrigeration machine, and collection comprises user's non-cooling electric weight and the power consumption information that refrigeration fan coil pipe cold water consumes the detected cold water influx of gauging table; Send user's the pipeline range information and the power consumption information of collection to the integrated dispatch control device;
The 3rd remote centralized controller also receives the scheduling control signal that the integrated dispatch control device is sent, and drives air conditioner teleswitch and/or refrigeration fan coil pipe device teleswitch execution action according to scheduling control signal;
The integrated dispatch control device, according to reception production capacity information, user's pipeline range information and power consumption information, produce the regulation and control control signal, send the regulation and control control signal to the first remote centralized controller and/or the 3rd remote centralized controller.
Described integrated dispatch control device is according to the back pressure type cogeneration units, the production capacity information of wind power generating set and user's the power consumption information that receive; Guaranteeing to satisfy under the condition that electric power is supplied with and refrigeration is supplied with; Reduce the back pressure type cogeneration units and supply with the hot water flow of centralized thermal absorption formula refrigeration machine refrigeration; Reduce hot water flow and cause the minimizing of back pressure type cogeneration units generated output to be compensated by wind-power electricity generation, the hot water flow that reduces refrigeration causes not enough the refrigeration by the air conditioner consumes electric power of the needed refrigeration of user to compensate;
The integrated dispatch control device sends and comprises hot water flow and the generated output electric weight of back pressure type cogeneration units in the confession refrigeration of scheduling time, the regulation and control control signal of the cool water quantity of inflow user's refrigeration fan coil pipe and the refrigeration electric power consumption of air conditioner.
Said integrated dispatch control device comprises:
Receive the production capacity information of back pressure type cogeneration units and wind power generating set, the first Data Receiving unit of user's power consumption information and user pipe range information;
The data decoder unit that all data that receive are decoded;
The data memory unit that decoded all data are stored;
Generate the scheduling control signal computing unit of scheduling control signal;
Said scheduling control signal is carried out the encoded signals scrambler; And
Scheduling control signal behind the coding is passed to the transmitting element of the first remote centralized controller, the 3rd remote centralized controller.
The integrated dispatch control device is connected with the cloud computing service system through power optical fiber, and drives the calculating of cloud computing service system, to obtain scheduling control signal; The integrated dispatch control device receives the scheduling control signal that the cloud computing service system obtains through power optical fiber, sends scheduling control signal to the first remote centralized controller and/or the 3rd remote centralized controller via power cable or wireless transmission method then.
Said refrigeration fan coil pipe device teleswitch is coupled with remote control mode and integrated dispatch control device through the 3rd remote centralized controller; The air conditioner teleswitch is coupled with remote control mode and integrated dispatch control device through the 3rd remote centralized controller; Also be provided with the special-purpose electric energy meter of air conditioner on the air conditioner, detect the power consumption of its refrigeration, this power consumption is also gathered by the 3rd remote centralized controller;
Back pressure type cogeneration units control actuating unit is coupled with remote control mode and integrated dispatch control device through the first remote centralized controller; Back pressure type cogeneration units control actuating unit is according to scheduling control signal, controls connected charging valve, Boiler Steam admission valve, supplies the steam of refrigeration draw gas valve and generating steam flow valve event.
Said the 3rd remote centralized controller comprises non-refrigeration ammeter impulse meter, refrigeration cold water flow pulse counter, pulse-code converter, metering signal amplifying emission device, and interconnective control signal Rcv decoder and remote control signal generator;
Non-refrigeration ammeter impulse meter connects the non-refrigeration ammeter of user, is used to detect the non-refrigeration power consumption of user data, is sent to the integrated dispatch control device after the non-refrigeration power consumption of user data process pulse-code converter and metering signal amplifying emission device are handled;
Refrigeration cold water flow pulse counter connects refrigeration fan coil pipe cold water and consumes gauging table; Be used to detect the cold water influx; The cold water influx is handled the generation signal through pulse-code converter and metering signal amplifying emission device again, is sent to the integrated dispatch control device with user pipe information;
The control signal Rcv decoder, the scheduling control information that reception integrated dispatch control device sends is also decoded, and through the control signal remote control transmitter control signal is sent to air conditioner teleswitch, refrigeration fan coil pipe device teleswitch execution action then.
Described back pressure type cogeneration units and wind-powered electricity generation exert oneself the refrigeration dispatching system dispatching method, may further comprise the steps:
At 0~T * in the Δ T time period; Δ T is the sampling period, the number of times of T for gathering, and the integrated dispatch control device is according to the back pressure type cogeneration units that receives, the production capacity information of wind power generating set; Dope the production capacity information of following a period of time T~2T * Δ T; The power consumption information that combines user in 0~T * Δ T time period is again guaranteeing to satisfy under the condition that electric power is supplied with and refrigeration is supplied with, and reduces the hot water flow that the back pressure type cogeneration units is supplied with centralized thermal absorption formula refrigeration machine refrigeration; Reducing hot water flow causes the minimizing of back pressure type cogeneration units generated output to be compensated by wind-power electricity generation; Reduce the cold water flow and cause not enough refrigeration of the needed refrigeration of user to compensate, and consider that cold water flows to user's time, calculates magnitude of recruitment by the air conditioner consumes electric power;
Then in T~2T * Δ T time period; The integrated dispatch control device is the regulation and control cycle with Δ T; Generation scheduling control signal and transmission are calculated in prediction and scheduling according to electric power supply and refrigeration supply; The hot water flow and the generated output electric weight of the confession refrigeration of control back pressure type cogeneration units after the first remote centralized controller receiving scheduling control signal; After the 3rd remote centralized controller receiving scheduling control signal, control air conditioner consumes electric power is freezed and is compensated the refrigeration deficiency that the refrigeration fan coil pipe causes with the cold water minimizing.
The generation of the scheduling control signal of described integrated dispatch control device may further comprise the steps:
1) gather variable:
1.1) gather the generated output P of back pressure type cogeneration units in 0~T * Δ T time period CHP(t) and the heat of the supplying with centralized thermal absorption formula refrigeration machine H that exerts oneself CHPAnd send to the integrated dispatch control device (t); Δ T is the sampling period, the number of times of T for gathering, and T is a natural number;
Gather 0~M aerogenerator at the generated output
Figure BDA0000101255500000051
of 0~T * Δ T time period and send to the integrated dispatch control device;
1.2) collection 0~T * in the Δ T time period, 0~N user's following information: the pipeline of the centralized thermal absorption formula refrigeration machine of user's distance is apart from S i, non-refrigeration power consumption P i(t), the refrigeration fan coil pipe consumption H that is used to freeze i(t) and the installed capacity of air conditioner
Figure BDA0000101255500000052
And send to the integrated dispatch control device;
2) calculate following variable:
2.1) calculate the gross capability of aerogenerator in 0~T * Δ T time period Then according to gross capability Utilize statistical analysis technique, the aerogenerator gross capability P of prediction T~2T * Δ T time period Sum(t);
By gathering the back pressure type cogeneration units at the heat of the centralized thermal absorption formula of the supply refrigeration machine of the 0~T * Δ T time period H that exerts oneself CHP(t) and generated output P CHP(t), the heat that dopes the centralized thermal absorption formula of the supply refrigeration machine of the T~2T * Δ T time period H that exerts oneself CHP(t) and generated output P CHP(t);
2.2) to calculate each user be that cold water is at ducted flow velocity to equivalent distances
Figure BDA0000101255500000055
v of centralized thermal absorption formula refrigeration machine; And to result of calculation being done rounding operation
Figure BDA0000101255500000061
With identical s iThe user be divided into same group, count l group, s i=l; Amount to the L group, L is a natural number;
To each user grouping, calculate the total cooling load H that respectively organizes all users respectively Load(l) and air conditioner capacity P EHP(l);
H Load(l)=∑ H i(t, l), H i(t is that l group user i is at t cooling load constantly l);
Figure BDA0000101255500000063
for the first group of users i l air conditioner capacity;
3) with above-mentioned P CHP(t), H CHP(t), P Load(t), H Load(l), P EHP(l) substitution is carried out iterative by objective function (1) constraints (2~12) compositional optimization problem, is the result to obtain the objective function minimum value, obtains each variable as adjustment signal:
3.1) objective function is:
Min : Δp = Σ t = T 2 T ( p wind ( t ) - P wind need ) 2 / ( T + 1 ) ; - - - ( 1 )
P wherein Pv(t) be the equivalent wind-power electricity generation gross capability after regulating,
Figure BDA0000101255500000065
For the wind-powered electricity generation that system needs is exerted oneself;
p pv(t)=P pv(t)+(p CHP(t)-P CHP(t))-p EHPs(t) (2)
Wherein, p CHP(t) be the generated output of the back pressure type cogeneration units after regulating, P CHP(t) be the generated output of the back pressure type cogeneration units of prediction, p EHPsAll user's air conditioner power consumptions when (t) being t;
3.2) constraint condition
3.2.1) the refrigeration duty balance equation
Reducing cold water and exert oneself, is Δ h (t) at the not enough power of supply side refrigeration, and its expression formula is following:
Δh(t)=H CHP-h CHP(t); (4)
H wherein CHPSupply with the heat of centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units that dopes and exert oneself h CHP(t) heat of supplying with centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units after regulating is exerted oneself;
Consider the time of cold water at the channel flow access customer, the user uses the needed compensation Δ of air conditioner h (t) to be expressed as:
Δh ( t ) = Σ l = 0 L h EHP ( t + l , l ) ; (T≤t+l≤2T) (5)
h EHP(t+l l) is the t+l refrigeration work consumption sum of l group user air conditioner constantly;
3.2.2) constraint of back pressure type cogeneration units:
The generated output lower limit: p CHP Min ( t ) = 90 % · P CHP - - - ( 6 )
The generated output upper limit: p CHP Max ( t ) = P CHP - - - ( 7 )
The generated output restriction: p CHP Min ( t ) < p CHP ( t ) &le; p CHP Max ( t ) - - - ( 8 )
Cogeneration of heat and power is thermoelectric than constraint:
h CHP(t)=RDB·p CHP(t) (9)
&eta; CHP ( t ) = h CHP ( t ) + p CHP ( t ) f CHP ( t ) - - - ( 10 )
Wherein, P CHPCapacity for the back pressure type cogeneration units;
Figure BDA0000101255500000076
For regulating the minimum generated output of back back pressure type cogeneration units; p CHP(t) for regulating back back pressure type cogeneration units generated output;
Figure BDA0000101255500000077
Exert oneself for regulating back back pressure type cogeneration units maximum generation; RDB is the thermoelectric ratio of back pressure type cogeneration units; η CHP(t) be back pressure type cogeneration units efficient, h CHP(t) heat of supplying with centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units after regulating is exerted oneself f CHP(t) be cogeneration of heat and power power energy consumption;
3.2.3) user side air conditioner constraint condition
Thermoelectric than constraint: h EHP(t, l)=COP EHPP EHP(t, l) (11)
h EHP(t l) is the t refrigeration work consumption sum of l group user air conditioner constantly, COP EHPBe the household air-conditioner coefficient;
The upper limit: 0≤p exerts oneself EHP(t, l)≤min (P EHP(l), H Load(l)/COP EHP); (12)
The air conditioner power consumption sum of all user's groups of day part:
p EHPs ( t ) = &Sigma; l = 0 L p EHP ( t , l ) - - - ( 13 )
4) the integrated dispatch control device generates scheduling control signal according to each variable after regulating in the middle of the operation result and sends:
Generated output p with the back pressure type cogeneration units CHP(t) and supply the refrigeration h that exerts oneself CHP(t) send to the first remote centralized controller, control it and regulate the action of day part in the time in future;
With user's air conditioner power consumption p EHP(t is l) with refrigerating capacity h EHP(t l) sends to the 3rd remote centralized controller, controls it and regulates the action of day part in the time in future.
Compared with prior art, the present invention has following beneficial technical effects:
Back pressure type cogeneration units provided by the invention and wind-powered electricity generation exert oneself refrigeration dispatching system and method; Be jointly controlling through back pressure type cogeneration units and cooling load; Equivalence generating and the system's actual demand of regulating wind-powered electricity generation reach unanimity the pressure that reduces to be incorporated into the power networks;
For cooling load: the user adopts refrigeration fan coil pipe and air conditioner electricity dual mode refrigeration; Change through centralized thermal absorption formula refrigeration machine the hot water that cold water wherein the derives from cogeneration units back of exerting oneself; Electric power is united by cogeneration units and wind power generating set to be provided; After energy supply that detects the phase of history time and user's power consumption situation, utilize " multiple regression " statistical analysis technique that following a period of time is made prediction through the integrated dispatch control device; Dispatch on this basis then:
Guaranteeing to satisfy under the condition that electric power is supplied with and refrigeration is supplied with; Reduce the hot water flow of supplying with the centralized thermal absorption formula refrigeration machine of refrigeration; Its refrigerating capacity that lacks is freezed by consumes electric power and is compensated, and the power consumption refrigeration both can compensate the deficiency of cold water refrigeration, the load of the low-valley interval that also can increase electric power;
Simultaneously, the back pressure type cogeneration units reduce to supply the hot water of refrigeration to exert oneself, and its generated output also changes accordingly, can be according to adjustings needs minimizing generated output, and cooperate with wind-power electricity generation according to the variation of power load and to furnish good supplies to;
Wind-power electricity generation, cogeneration of heat and power integrate regulation and control like this; Adjust the variation of exerting oneself of cogeneration of heat and power and user's power consumption load condition according to the undulatory property of wind-power electricity generation; Based on real-time detection and prediction continuity control methods; With sense cycle and the regulating cycle that equates, thereby realize that exerting oneself with system needed wind-powered electricity generation exerting oneself of user side of wind-power electricity generation equivalence is complementary.
And the present invention has also considered the otherness of two kinds of different refrigeration modes: cold water is at the time delay of pipeline transportation, the instantaneity of electric power compensation refrigeration; When electric power compensation, just need treat apart from differentiation to the different pipelines of refrigeration source like this user; It when the user compensates refrigeration the compensation of considering cooling time difference; Consider the energy changing of supply side and user side fully; User's actual demand and effective utilization of the energy have been taken into account in the existing level and smooth output that utilizes wind-power electricity generation again.
Description of drawings
Fig. 1 is back pressure type cogeneration units and the wind-powered electricity generation synoptic diagram that is connected of dispatching system of freezing of exerting oneself;
Fig. 2 is the structural representation of integrated dispatch control device;
Fig. 3 is that the integrated dispatch control device is connected synoptic diagram with cloud computing;
Fig. 4 is the structural representation of the 3rd remote centralized controller;
Fig. 5-1~Fig. 5-3 is respectively actual wind-powered electricity generation exert oneself change curve, the needed equivalent wind-powered electricity generation of target exert oneself change curve, the equivalent wind-powered electricity generation power curve after regulating; Wherein horizontal ordinate is time (min), and ordinate is wind power (MW).
Embodiment
Back pressure type cogeneration units provided by the invention and wind-powered electricity generation exert oneself refrigeration dispatching system and method, being united by cogeneration units and wind power generating set at supply side electric power provides the centralized thermal absorption formula of the hot water supply of cogeneration units refrigeration machine; Be used for refrigeration and carry cold water; The user adopts the refrigeration fan coil pipe to consume cold water cold wind and air conditioner power consumption dual mode refrigeration is provided, on the basis that history detects, and energy supply and the power consumption situation of following a period of time of prediction; Reduce to supply chilled water to exert oneself to freeze to compensate with power consumption; With respect to the undulatory property of wind-power electricity generation, the user power utilization load also has the space of adjustment like this, and the power consumption refrigeration both can compensate the deficiency of cold water refrigeration; The load of low-valley interval that also can increase electric power, and the hot water that is used to freeze reduces generated energy and also can reduce.And when the compensation of dual mode refrigeration, consider the time delay of pipeline transportation, the instantaneity of electric power compensation refrigeration realizes effective adjusting of total system, makes the equivalence of wind-powered electricity generation exert oneself and target requirement reaches unanimity.System's formation and control method below in conjunction with concrete are done further detailed description to the present invention, and said is to explanation of the present invention rather than qualification.
Referring to Fig. 1~Fig. 4, a kind of back pressure type cogeneration units and the wind-powered electricity generation refrigeration dispatching system of exerting oneself comprises:
The back pressure type cogeneration units A that is used for output electric power and the hot water that supplies refrigeration;
Centralized thermal absorption formula refrigeration machine 200, input end connects the hot water outlet of back pressure type cogeneration units A, produces cold water after the heat interchange, and output terminal connects cooling pipeline 114;
The wind power generating set B that is used for output electric power;
Air conditioner 108 through power cable net 113 user parallelly connected with back pressure type cogeneration units A and wind power generating set B; The air conditioner teleswitch 117 of control air conditioner 108;
Gather the ammeter of the non-refrigeration power consumption of user;
The user's who is connected with centralized thermal absorption formula refrigeration machine 200 through cooling pipeline 114 refrigeration fan coil pipe 110, refrigeration fan coil pipe 110 consumes cold water and blows out cold wind through heat interchange; Refrigeration fan coil pipe cold water consumes gauging table 111, detects the cold water consumption of refrigeration fan coil pipe 110; The refrigeration fan coil pipe device teleswitch 116 of control refrigeration fan coil pipe 110;
The first remote centralized controller 1121 is gathered the hot water flow that comprises the confession refrigeration of back pressure type cogeneration units A and the production capacity information of generated output electric weight, sends the production capacity information of gathering to integrated dispatch control device 115; The first remote centralized controller 1121 also receives the scheduling control signal that integrated dispatch control device 115 is sent, and according to 118 actions of scheduling control signal control cogeneration units control actuating unit;
The second remote centralized controller 1122, the production capacity information of gathering the generated output electric weight of wind power generating set B sends the production capacity information of gathering to integrated dispatch control device 115;
The 3rd remote centralized controller 1123; Record user's refrigeration fan coil pipe 110 and the pipeline range information between the centralized thermal absorption formula refrigeration machine 200, and collection comprises user's non-cooling electric weight and the power consumption information that refrigeration fan coil pipe cold water consumes gauging table 111 detected cold water influxs and non-refrigeration power consumption; Send user's the pipeline range information and the power consumption information of collection to integrated dispatch control device 115;
The 3rd remote centralized controller 1123 also receives the scheduling control signal that integrated dispatch control device 115 is sent, and drives air conditioner teleswitch 117 and/or the 116 execution actions of refrigeration fan coil pipe device teleswitch according to scheduling control signal;
Integrated dispatch control device 115, according to reception production capacity information, user's pipeline range information and power consumption information, produce the regulation and control control signal, send the regulation and control control signal to the first remote centralized controller 1121 and/or the 3rd remote centralized controller 1123.
Concrete integrated dispatch control device 115 is according to the back pressure type cogeneration units A, the production capacity information of wind power generating set B and user's the power consumption information that receive; Guaranteeing to satisfy under the condition that electric power is supplied with and refrigeration is supplied with; Reduce the hot water flow that back pressure type cogeneration units A supplies with centralized thermal absorption formula refrigeration machine 200 refrigeration; Reduce hot water flow and cause the minimizing of back pressure type cogeneration units generated output to be compensated by wind-power electricity generation, the hot water flow that reduces refrigeration causes not enough the refrigeration by air conditioner 108 consumes electric power of the needed refrigeration of user to compensate;
Integrated dispatch control device 115 sends and comprises hot water flow and the generated output electric weight of back pressure type cogeneration units A in the confession refrigeration of scheduling time, the regulation and control control signal of the cool water quantity of inflow user's refrigeration fan coil pipe 110 and the refrigeration electric power consumption of air conditioner 108.
Referring to Fig. 2, said integrated dispatch control device 115 comprises:
Receive the production capacity information of back pressure type cogeneration units A and wind power generating set B, the first Data Receiving unit 201 of user's power consumption information and user pipe range information;
The data decoder unit 202 that all data that receive are decoded;
The data memory unit 203 that decoded all data are stored;
Generate the scheduling control signal computing unit 204 of scheduling control signal;
Said scheduling control signal is carried out encoded signals scrambler 205; And
Scheduling control signal behind the coding is passed to the transmitting element 206 of the first remote centralized controller 1121, the 3rd remote centralized controller 1123.
Referring to Fig. 3, integrated dispatch control device 115 is connected with cloud computing service system 917 through power optical fiber 120, and drives 917 calculating of cloud computing service system, to obtain scheduling control signal; Integrated dispatch control device 115 receives the scheduling control signal that cloud computing service system 917 obtains through power optical fiber 120, sends scheduling control signal to the first remote centralized controller 1121 and/or the 3rd remote centralized controller 1123 via power cable or wireless transmission method then.
Concrete remote control mode is:
Said refrigeration fan coil pipe device teleswitch 116 is coupled with remote control mode and integrated dispatch control device 115 through the 3rd remote centralized controller 1123; Air conditioner teleswitch 117 is coupled with remote control mode and integrated dispatch control device 115 through the 3rd remote centralized controller 1123; Also be provided with the special-purpose electric energy meter 109 of air conditioner on the air conditioner 108, detect the power consumption of its refrigeration, this power consumption is also gathered by the 3rd remote centralized controller;
Back pressure type cogeneration units control actuating unit 118 is coupled with remote control mode and integrated dispatch control device 115 through the first remote centralized controller 1121; Back pressure type cogeneration units control actuating unit 118 is according to scheduling control signal, controls connected charging valve, Boiler Steam admission valve, supplies the steam of refrigeration draw gas valve and generating steam flow valve event.
Referring to Fig. 4; Said the 3rd remote centralized controller 1123 comprises non-refrigeration ammeter impulse meter, refrigeration cold water flow pulse counter, pulse-code converter, metering signal amplifying emission device, and interconnective control signal Rcv decoder and remote control signal generator;
Non-refrigeration ammeter impulse meter connects the non-refrigeration ammeter of user, is used to detect the non-refrigeration power consumption of user data, is sent to integrated dispatch control device 115 after the non-refrigeration power consumption of user data process pulse-code converter and metering signal amplifying emission device are handled;
Refrigeration cold water flow pulse counter connects refrigeration fan coil pipe cold water and consumes gauging table 111; Be used to detect the cold water influx; The cold water influx is handled the generation signal through pulse-code converter and metering signal amplifying emission device again, is sent to integrated dispatch control device 115 with user pipe information;
The control signal Rcv decoder; The scheduling control information that reception integrated dispatch control device 115 sends is also decoded, and through the control signal remote control transmitter control signal is sent to air conditioner teleswitch 117, the 116 execution actions of refrigeration fan coil pipe device teleswitch then.
Based on the exert oneself dispatching method of refrigeration dispatching system of above-mentioned back pressure type cogeneration units and wind-powered electricity generation, may further comprise the steps:
At 0~T * in the Δ T time period; Δ T is the sampling period, the number of times of T for gathering, and the integrated dispatch control device is according to the back pressure type cogeneration units that receives, the production capacity information of wind power generating set; Utilize " multiple regression " statistical analysis technique to dope the production capacity information of following a period of time T~2T * Δ T; The power consumption information that combines user in 0~T * Δ T time period is again guaranteeing to satisfy under the condition that electric power is supplied with and refrigeration is supplied with, and reduces the hot water flow that the back pressure type cogeneration units is supplied with centralized thermal absorption formula refrigeration machine refrigeration; Reducing hot water flow causes the minimizing of back pressure type cogeneration units generated output to be compensated by wind-power electricity generation; Reduce the cold water flow and cause not enough refrigeration of the needed refrigeration of user to compensate, and consider that cold water flows to user's time, calculates magnitude of recruitment by the air conditioner consumes electric power;
Then in T~2T * Δ T time period; The integrated dispatch control device is the regulation and control cycle with Δ T; Generation scheduling control signal and transmission are calculated in prediction and scheduling according to electric power supply and refrigeration supply; The hot water flow and the generated output electric weight of the confession refrigeration of control back pressure type cogeneration units after the first remote centralized controller receiving scheduling control signal; After the 3rd remote centralized controller receiving scheduling control signal, control air conditioner consumes electric power is freezed and is compensated the refrigeration deficiency that the refrigeration fan coil pipe causes with the cold water minimizing.
Based on real-time detection and prediction continuity control methods, in system, regulate like this with the sense cycle and the regulating cycle that equate.
The generation of the scheduling control signal of concrete integrated dispatch control device may further comprise the steps:
1) gather variable:
1.1) gather the generated output P of back pressure type cogeneration units in 0~T * Δ T time period CHP(t) and supply the refrigeration H that exerts oneself CHPAnd send to the integrated dispatch control device (t); Δ T is that the sampling period, (specifically can be 15~30min), T was the number of times of collection, and T is a natural number;
Gather 0~M aerogenerator at the generated output
Figure BDA0000101255500000141
of 0~T * Δ T time period and send to the integrated dispatch control device;
1.2) collection 0~T * in the Δ T time period, 0~N user's following information: the pipeline of the centralized thermal absorption formula refrigeration machine of user's distance is apart from S i, non-refrigeration power consumption P i(t), the refrigeration fan coil pipe consumption H that is used to freeze i(t) and the installed capacity of air conditioner And send to the integrated dispatch control device;
2) calculate following variable:
2.1) calculate the gross capability of aerogenerator in 0~T * Δ T time period Then according to gross capability Utilize statistical analysis technique, the aerogenerator gross capability P of prediction T~2T * Δ T time period Sum(t);
By gathering the back pressure type cogeneration units at the heat of the centralized thermal absorption formula of the supply refrigeration machine of the 0~T * Δ T time period H that exerts oneself CHP(t) and generated output P CHP(t), the heat that dopes the centralized thermal absorption formula of the supply refrigeration machine of the T~2T * Δ T time period H that exerts oneself CHP(t) and generated output P CHP(t);
2.2) to calculate each user be that cold water is at ducted flow velocity to equivalent distances
Figure BDA0000101255500000145
v of centralized thermal absorption formula refrigeration machine; And to result of calculation being done rounding operation
With identical s iThe user be divided into same group, count l group, s i=l; Such as with s iAll users of=10 are divided into one group, count the 10th group; Amount to the L group, L is a natural number;
To each user grouping, calculate the total cooling load H that respectively organizes all users respectively Load(l) and air conditioner capacity P EHP(l);
H Load(l)=∑ H i(t, l), H i(t is that l group user i is at t cooling load constantly l);
Figure BDA0000101255500000151
Figure BDA0000101255500000152
for the first group of users i l air conditioner capacity;
3) with above-mentioned P CHP(t), H CHP(t), P Load(t), H Load(l), P EHP(l) substitution is carried out iterative by objective function (1) constraints (2~12) compositional optimization problem, is the result to obtain the objective function minimum value, with the variable after the regulating regulation and control amount of this variable of a period of time (i.e. future) as adjustment signal:
3.1) objective function is:
Min : &Delta;p = &Sigma; t = T 2 T ( p wind ( t ) - P wind need ) 2 / ( T + 1 ) ; - - - ( 1 )
P wherein Pv(t) be the equivalent wind-power electricity generation gross capability after regulating,
Figure BDA0000101255500000154
Exert oneself for the wind-powered electricity generation that system needs, also can be described as the target wind-powered electricity generation and exert oneself;
p pv(t)=P pv(t)+(p CHP(t)-p CHP(t))-p EHPs(t) (2)
Wherein, P CHP(t) be the generated output of the back pressure type cogeneration units of prediction, p CHP(t) be the generated output of the back pressure type cogeneration units after regulating, p EHPsAll user's air conditioner power consumptions when (t) being t;
3.2) constraint condition
3.2.1) the refrigeration duty balance equation
Reducing cold water and exert oneself, is Δ h (t) at the not enough power of supply side refrigeration, and its expression formula is following:
Δh(t)=H CHP-h CHP(t); (3)
H wherein CHPSupply with the heat of centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units that dopes and exert oneself h CHP(t) heat of supplying with centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units after regulating is exerted oneself;
Consider the time of cold water at the channel flow access customer, the user uses the needed compensation Δ of air conditioner h (t) to be expressed as:
&Delta;h ( t ) = &Sigma; l = 0 L h EHP ( t + l , l ) ; (T≤t+l≤2T) (4)
h EHP(t+l l) is the t+l refrigeration work consumption sum of l group user air conditioner constantly;
3.2.2) constraint of back pressure type cogeneration units:
The generated output lower limit: p CHP Min ( t ) = 90 % &CenterDot; P CHP - - - ( 5 )
The generated output upper limit: p CHP Max ( t ) = P CHP - - - ( 6 )
The generated output restriction: p CHP Min ( t ) < p CHP ( t ) &le; p CHP Max ( t ) - - - ( 7 )
Cogeneration of heat and power is thermoelectric than constraint:
h CHP(t)=RDB·p CHP(t) (8)
&eta; CHP ( t ) = h CHP ( t ) + p CHP ( t ) f CHP ( t ) - - - ( 9 )
Wherein, P CHPCapacity for the back pressure type cogeneration units;
Figure BDA0000101255500000166
For regulating the minimum generated output of back back pressure type cogeneration units; p CHP(t) for regulating back back pressure type cogeneration units generated output;
Figure BDA0000101255500000167
Exert oneself for regulating back back pressure type cogeneration units maximum generation; RDB is the thermoelectric ratio of back pressure type cogeneration units; η CHP(t) be back pressure type cogeneration units efficient, h CHP(t) heat of supplying with centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units after regulating is exerted oneself f CHP(t) be cogeneration of heat and power power energy consumption;
3.2.3) user side air conditioner constraint condition
Thermoelectric than constraint: h EHP(t, l)=COP EHPP EHP(t, l) (10)
h EHP(t l) is the t refrigeration work consumption sum of l group user air conditioner constantly, COP EHPBe the household air-conditioner coefficient;
The upper limit: 0≤p exerts oneself EHP(t, l)≤min (P EHP(l), H Load(l)/COP EHP); (11)
The air conditioner power consumption sum of all user's groups of day part:
p EHPs ( t ) = &Sigma; l = 0 L p EHP ( t , l ) - - - ( 12 )
4) the integrated dispatch control device generates scheduling control signal according to each variable after regulating in the middle of the operation result and sends:
Generated output p with the back pressure type cogeneration units CHP(t) and supply the refrigeration h that exerts oneself CHP(t) signal sends to the first remote centralized controller, controls it and regulates the action of day part in the time in future;
With user's air conditioner power consumption p EHP(t is l) with refrigerating capacity h EHP(t l) sends to the 3rd remote centralized controller, controls it and regulates the action of day part in the time in future.
Shown in Fig. 5-1~5-3, the change curve of exerting oneself of the actual wind-powered electricity generation shown in Fig. 5-1, the needed equivalent wind-powered electricity generation of the target shown in the 5-2 change curve of exerting oneself, it is very big to find out that both differ variation; And Fig. 5-3 is depicted as the equivalent wind-powered electricity generation power curve after the adjusting, can find out and the change curve basically identical of exerting oneself of the target Equivalent wind-powered electricity generation shown in the 5-2.

Claims (8)

1. back pressure type cogeneration units and the wind-powered electricity generation refrigeration dispatching system of exerting oneself is characterized in that, comprising:
The back pressure type cogeneration units (A) that is used for output electric power and the hot water that supplies refrigeration;
Centralized thermal absorption formula refrigeration machine (200), input end connects the hot water outlet of back pressure type cogeneration units (A), produces cold water after the heat interchange, and output terminal connects cooling pipeline (114);
The wind power generating set (B) that is used for output electric power;
Air conditioner (108) through power cable net (113) user parallelly connected with back pressure type cogeneration units (A) and wind power generating set (B); The air conditioner teleswitch (117) of control air conditioner (108);
Gather the ammeter of the non-refrigeration power consumption of user;
The user's who is connected with centralized thermal absorption formula refrigeration machine (200) through cooling pipeline (114) refrigeration fan coil pipe (110); Refrigeration fan coil pipe cold water consumes gauging table (111), detects the cold water consumption of refrigeration fan coil pipe (110); The refrigeration fan coil pipe device teleswitch (116) of control refrigeration fan coil pipe (110);
The first remote centralized controller (1121) is gathered the hot water flow that comprises the confession refrigeration of back pressure type cogeneration units (A) and the production capacity information of generated output electric weight, sends the production capacity information of gathering to integrated dispatch control device (115); The first remote centralized controller (1121) also receives the scheduling control signal that integrated dispatch control device (115) is sent, and according to scheduling control signal control back pressure type cogeneration units control actuating unit (118) action;
The second remote centralized controller (1122), the production capacity information of gathering the generated output electric weight of wind power generating set (B) sends the production capacity information of gathering to integrated dispatch control device (115);
The 3rd remote centralized controller (1123); Record user's refrigeration fan coil pipe (110) and the pipeline range information between the centralized thermal absorption formula refrigeration machine (200), and collection comprises user's non-cooling electric weight and the power consumption information that refrigeration fan coil pipe cold water consumes the detected cold water influx of gauging table (111); Send user's the pipeline range information and the power consumption information of collection to integrated dispatch control device (115);
The 3rd remote centralized controller (1123) also receives the scheduling control signal that integrated dispatch control device (115) is sent, and drives air conditioner teleswitch (117) and/or refrigeration fan coil pipe device teleswitch (116) execution action according to scheduling control signal;
Integrated dispatch control device (115); According to reception production capacity information, user's pipeline range information and power consumption information; Produce the regulation and control control signal, send the regulation and control control signal to the first remote centralized controller (1121) and/or the 3rd remote centralized controller (1123).
2. back pressure type cogeneration units according to claim 1 and the wind-powered electricity generation refrigeration dispatching system of exerting oneself; It is characterized in that; Integrated dispatch control device (115) is according to the back pressure type cogeneration units (A), the production capacity information of wind power generating set (B) and user's the power consumption information that receive; Guaranteeing to satisfy under the condition that electric power is supplied with and refrigeration is supplied with; Reduce back pressure type cogeneration units (A) and supply with the hot water flow of centralized thermal absorption formula refrigeration machine (200) refrigeration; Reduce hot water flow and cause the minimizing of back pressure type cogeneration units generated output to be compensated by wind-power electricity generation, the hot water flow that reduces refrigeration causes not enough the refrigeration by air conditioner (108) consumes electric power of the needed refrigeration of user to compensate;
Integrated dispatch control device (115) sends and comprises hot water flow and the generated output electric weight of back pressure type cogeneration units (A) in the confession refrigeration of scheduling time, the regulation and control control signal of the cool water quantity of inflow user's refrigeration fan coil pipe (110) and the refrigeration electric power consumption of air conditioner (108).
3. back pressure type cogeneration units according to claim 1 and the wind-powered electricity generation refrigeration dispatching system of exerting oneself is characterized in that said integrated dispatch control device (115) comprising:
Receive the production capacity information of back pressure type cogeneration units (A) and wind power generating set (B), the first Data Receiving unit (201) of user's power consumption information and user pipe range information;
The data decoder unit (202) that all data that receive are decoded;
The data memory unit (203) that decoded all data are stored;
Generate the scheduling control signal computing unit (204) of scheduling control signal;
Said scheduling control signal is carried out encoded signals scrambler (205);
Scheduling control signal behind the coding is passed to the transmitting element (206) of the first remote centralized controller (1121), the 3rd remote centralized controller (1123).
4. back pressure type cogeneration units according to claim 1 and the wind-powered electricity generation refrigeration dispatching system of exerting oneself; It is characterized in that; Integrated dispatch control device (115) is connected with cloud computing service system (917) through power optical fiber (120); And drive cloud computing service system (917) calculating, to obtain scheduling control signal; Integrated dispatch control device (115) receives the scheduling control signal that cloud computing service system (917) obtains through power optical fiber (120), sends scheduling control signal to the first remote centralized controller (1121) and/or the 3rd remote centralized controller (1123) via power cable or wireless transmission method then.
5. back pressure type cogeneration units according to claim 1 and the wind-powered electricity generation refrigeration dispatching system of exerting oneself; It is characterized in that; Said refrigeration fan coil pipe device teleswitch (116) is coupled with remote control mode and integrated dispatch control device (115) through the 3rd remote centralized controller (1123); Air conditioner teleswitch (117) is coupled with remote control mode and integrated dispatch control device (115) through the 3rd remote centralized controller (1123); Also be provided with the special-purpose electric energy meter (109) of air conditioner on the air conditioner (108), detect the power consumption of its refrigeration, this power consumption is also gathered by the 3rd remote centralized controller;
Back pressure type cogeneration units control actuating unit (118) is coupled with remote control mode and integrated dispatch control device (115) through the first remote centralized controller (1121); Back pressure type cogeneration units control actuating unit (118) is according to scheduling control signal, controls connected charging valve, Boiler Steam admission valve, supplies the steam of refrigeration draw gas valve and generating steam flow valve event.
6. back pressure type cogeneration units according to claim 1 and the wind-powered electricity generation refrigeration dispatching system of exerting oneself; It is characterized in that; Said the 3rd remote centralized controller (1123) comprises non-refrigeration ammeter impulse meter, refrigeration cold water flow pulse counter, pulse-code converter, metering signal amplifying emission device, and interconnective control signal Rcv decoder and remote control signal generator;
Non-refrigeration ammeter impulse meter connects the non-refrigeration ammeter of user; Be used to detect the non-refrigeration power consumption of user data, be sent to integrated dispatch control device (115) after the non-refrigeration power consumption of user data process pulse-code converter and metering signal amplifying emission device are handled;
Refrigeration cold water flow pulse counter connects refrigeration fan coil pipe cold water and consumes gauging table (111); Be used to detect the cold water influx; The cold water influx is handled the generation signal through pulse-code converter and metering signal amplifying emission device again, is sent to integrated dispatch control device (115) with user pipe information;
The control signal Rcv decoder; The scheduling control information that reception integrated dispatch control device (115) sends is also decoded, and through the control signal remote control transmitter control signal is sent to air conditioner teleswitch (117), refrigeration fan coil pipe device teleswitch (116) execution action then.
Described back pressure type cogeneration units of claim 1 and wind-powered electricity generation exert oneself the refrigeration dispatching system dispatching method, it is characterized in that, may further comprise the steps:
At 0~T * in the Δ T time period; Δ T is the sampling period, the number of times of T for gathering, and the integrated dispatch control device is according to the back pressure type cogeneration units that receives, the production capacity information of wind power generating set; Dope the production capacity information of following a period of time T~2T * Δ T; The power consumption information that combines user in 0~T * Δ T time period is again guaranteeing to satisfy under the condition that electric power is supplied with and refrigeration is supplied with, and reduces the hot water flow that the back pressure type cogeneration units is supplied with centralized thermal absorption formula refrigeration machine refrigeration; Reducing hot water flow causes the minimizing of back pressure type cogeneration units generated output to be compensated by wind-power electricity generation; Reduce the cold water flow and cause not enough refrigeration of the needed refrigeration of user to compensate, and consider that cold water flows to user's time, calculates magnitude of recruitment by the air conditioner consumes electric power;
Then in T~2T * Δ T time period; The integrated dispatch control device is the regulation and control cycle with Δ T; Generation scheduling control signal and transmission are calculated in prediction and scheduling according to electric power supply and refrigeration supply; The hot water flow and the generated output electric weight of the confession refrigeration of control back pressure type cogeneration units after the first remote centralized controller receiving scheduling control signal; After the 3rd remote centralized controller receiving scheduling control signal, control air conditioner consumes electric power is freezed and is compensated the refrigeration deficiency that the refrigeration fan coil pipe causes with the cold water minimizing.
8. back pressure type cogeneration units as claimed in claim 7 and wind-powered electricity generation exert oneself the refrigeration dispatching system dispatching method, it is characterized in that the generation of the scheduling control signal of integrated dispatch control device may further comprise the steps:
1) gather variable:
1.1) gather the generated output P of back pressure type cogeneration units in 0~T * Δ T time period CHP(t) and the heat of the supplying with centralized thermal absorption formula refrigeration machine H that exerts oneself CHPAnd send to the integrated dispatch control device (t); Δ T is the sampling period, the number of times of T for gathering, and T is a natural number;
Gather 0~M aerogenerator at the generated output
Figure FDA0000101255490000051
of 0~T * Δ T time period and send to the integrated dispatch control device;
1.2) collection 0~T * in the Δ T time period, 0~N user's following information: the pipeline of the centralized thermal absorption formula refrigeration machine of user's distance is apart from S i, non-refrigeration power consumption P i(t), the refrigeration fan coil pipe consumption H that is used to freeze i(t) and the installed capacity of air conditioner
Figure FDA0000101255490000052
And send to the integrated dispatch control device;
2) calculate following variable:
2.1) calculate the gross capability of aerogenerator in 0~T * Δ T time period
Figure FDA0000101255490000053
Then according to gross capability Utilize statistical analysis technique, the aerogenerator gross capability P of prediction T~2T * Δ T time period Sum(t);
By gathering the back pressure type cogeneration units at the heat of the centralized thermal absorption formula of the supply refrigeration machine of the 0~T * Δ T time period H that exerts oneself CHP(t) and generated output P CHP(t), the heat that dopes the centralized thermal absorption formula of the supply refrigeration machine of the T~2T * Δ T time period H that exerts oneself CHP(t) and generated output P CHP(t);
2.2) to calculate each user be that cold water is at ducted flow velocity to equivalent distances
Figure FDA0000101255490000055
v of centralized thermal absorption formula refrigeration machine; And to result of calculation being done rounding operation
Figure FDA0000101255490000056
With identical s iThe user be divided into same group, count l group, s i=l; Amount to the L group, L is a natural number;
To each user grouping, calculate the total cooling load H that respectively organizes all users respectively Load(l) and air conditioner capacity P EHP(l);
H Load(l)=∑ H i(t, l), H i(t is that l group user i is at t cooling load constantly l);
Figure FDA0000101255490000061
Figure FDA0000101255490000062
for the first group of users i l air conditioner capacity;
3) with above-mentioned P CHP(t), H CHP(t), P Load(t), H Load(l), P EHP(l) substitution is carried out iterative by objective function (1) constraints (2~12) compositional optimization problem, is the result to obtain the objective function minimum value, obtains each variable as adjustment signal:
3.1) objective function is:
Min : &Delta;p = &Sigma; t = T 2 T ( p wind ( t ) - P wind need ) 2 / ( T + 1 ) ; - - - ( 1 )
P wherein Pv(t) be the equivalent wind-power electricity generation gross capability after regulating,
Figure FDA0000101255490000064
For the wind-powered electricity generation that system needs is exerted oneself;
p pv(t)=P pv(t)+(p CHP(t)-P CHP(t))-p EHPs(t) (2)
Wherein, p CHP(t) be the generated output of the back pressure type cogeneration units after regulating, P CHP(t) be the generated output of the back pressure type cogeneration units of prediction, p EHPsAll user's air conditioner power consumptions when (t) being t;
3.2) constraint condition
3.2.1) the refrigeration duty balance equation
Reducing cold water and exert oneself, is Δ h (t) at the not enough power of supply side refrigeration, and its expression formula is following:
Δh(t)=H CHP-h CHP(t); (3)
H wherein CHPSupply with the heat of centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units that dopes and exert oneself h CHP(t) heat of supplying with centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units after regulating is exerted oneself;
Consider the time of cold water at the channel flow access customer, the user uses the needed compensation Δ of air conditioner h (t) to be expressed as:
&Delta;h ( t ) = &Sigma; l = 0 L h EHP ( t + l , l ) ; (T≤t+l≤2T) (4)
h EHP(t+l l) is the t+l refrigeration work consumption sum of l group user air conditioner constantly;
3.2.2) constraint of back pressure type cogeneration units:
The generated output lower limit: p CHP Min ( t ) = 90 % &CenterDot; P CHP - - - ( 5 )
The generated output upper limit: p CHP Max ( t ) = P CHP - - - ( 6 )
The generated output restriction: p CHP Min ( t ) < p CHP ( t ) &le; p CHP Max ( t ) - - - ( 7 )
Cogeneration of heat and power is thermoelectric than constraint:
h CHP(t)=RDB·p CHP(t) (8)
&eta; CHP ( t ) = h CHP ( t ) + p CHP ( t ) f CHP ( t ) - - - ( 9 )
Wherein, P CHPCapacity for the back pressure type cogeneration units;
Figure FDA0000101255490000076
For regulating the minimum generated output of back back pressure type cogeneration units; p CHP(t) for regulating back back pressure type cogeneration units generated output; Exert oneself for regulating back back pressure type cogeneration units maximum generation; RDB is the thermoelectric ratio of back pressure type cogeneration units; η CHP(t) be back pressure type cogeneration units efficient, h CHP(t) heat of supplying with centralized thermal absorption formula refrigeration machine for the back pressure type cogeneration units after regulating is exerted oneself f CHP(t) be cogeneration of heat and power power energy consumption;
3.2.3) user side air conditioner constraint condition
Thermoelectric than constraint: h EHP(t, l)=COP EHPP EHP(t, l) (10)
h EHP(t l) is the t refrigeration work consumption sum of l group user air conditioner constantly, COP EHPBe the household air-conditioner coefficient;
The upper limit: 0≤p exerts oneself EHP(t, l)≤min (P EHP(l), H Load(l)/COP EHP); (11)
The air conditioner power consumption sum of all user's groups of day part:
p EHPs ( t ) = &Sigma; l = 0 L p EHP ( t , l ) - - - ( 12 )
4) the integrated dispatch control device generates scheduling control signal according to each variable after regulating in the middle of the operation result and sends:
Generated output p with the back pressure type cogeneration units CHP(t) and supply the refrigeration h that exerts oneself CHP(t) send to the first remote centralized controller, control it and regulate the action of day part in the time in future;
With user's air conditioner power consumption p EHP(t is l) with refrigerating capacity h EHP(t l) sends to the 3rd remote centralized controller, controls it and regulates the action of day part in the time in future.
CN201110323869.6A 2011-10-23 2011-10-23 Refrigeration scheduling system and method by adopting back-pressure type cogeneration unit and wind-power output Expired - Fee Related CN102520674B (en)

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