CN106324546A - Electronic transformer state acquisition device - Google Patents
Electronic transformer state acquisition device Download PDFInfo
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- CN106324546A CN106324546A CN201610957819.6A CN201610957819A CN106324546A CN 106324546 A CN106324546 A CN 106324546A CN 201610957819 A CN201610957819 A CN 201610957819A CN 106324546 A CN106324546 A CN 106324546A
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- 238000012545 processing Methods 0.000 claims abstract description 64
- 238000004891 communication Methods 0.000 claims abstract description 57
- 238000000034 method Methods 0.000 claims description 14
- 230000008569 process Effects 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 abstract description 13
- 238000001514 detection method Methods 0.000 abstract description 9
- 230000008901 benefit Effects 0.000 abstract description 2
- 229910018503 SF6 Inorganic materials 0.000 description 13
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 13
- 229960000909 sulfur hexafluoride Drugs 0.000 description 13
- 238000012806 monitoring device Methods 0.000 description 11
- 238000007405 data analysis Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000012795 verification Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
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- 238000009413 insulation Methods 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- QGHDLJAZIIFENW-UHFFFAOYSA-N 4-[1,1,1,3,3,3-hexafluoro-2-(4-hydroxy-3-prop-2-enylphenyl)propan-2-yl]-2-prop-2-enylphenol Chemical group C1=C(CC=C)C(O)=CC=C1C(C(F)(F)F)(C(F)(F)F)C1=CC=C(O)C(CC=C)=C1 QGHDLJAZIIFENW-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000013524 data verification Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012800 visualization Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R35/00—Testing or calibrating of apparatus covered by the other groups of this subclass
- G01R35/02—Testing or calibrating of apparatus covered by the other groups of this subclass of auxiliary devices, e.g. of instrument transformers according to prescribed transformation ratio, phase angle, or wattage rating
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Abstract
The invention relates to a state acquisition device of an electronic mutual inductor, which comprises: the electronic transformer state detection device comprises a state sensor and a case, wherein the case is used for being installed on an electronic transformer, a state acquisition module, an analog signal acquisition module and a digital signal processing communication module are arranged in the case, the state sensor is used for being connected with the electronic transformer and connected with the state acquisition module, the state acquisition module and the analog signal acquisition module are connected with the digital signal processing communication module, the analog signal acquisition module is used for being connected with the electronic transformer, and the digital signal processing communication module is used for being connected with a merging module. The electronic transformer on-line monitoring system has the advantages that the current and voltage signals are collected in real time, meanwhile, the running state of the electronic transformer is monitored on line, the current and voltage signals and the running state data are sent to the merging module, the running of the electronic transformer is comprehensively monitored, the running reliability of the electronic transformer is improved, the framework is simple, the implementation is simple, and the cost is effectively reduced.
Description
Technical field
The present invention relates to electronic mutual inductor field of measuring technique, especially relate to electronic mutual inductor state acquisition dress
Put.
Background technology
Electronic mutual inductor is the important component part of digital transformer substation, is different from tradition transformer, its maximum feature
It is secondary singal is carried out in-situ digitalization, and is carried out data transmission by optical fiber.Electronic mutual inductor mainly includes once
Sensor, harvester, insulation system etc..Wherein according to the difference of insulating structure design, harvester is likely to be brought into high pressure
Side or earth potential side.Owing to receiving the restriction of energy supply when being placed in high-pressure side, harvester whole realization is relatively simple, merit
Consume relatively low；When being placed in earth potential, harvester can directly use the interior power supply in station as power supply, and energy is in liberal supply, therefore
When the design being acquired device, can abundant regarded as output controlling, promote function and the performance of harvester.
As the crucial primary equipment of digital transformer substation, the reliably working of electronic mutual inductor is power system stability fortune
The guarantee of row.The reliability of electronic mutual inductor is not showed only as the accuracy that current/voltage gathers, and more shows as insulating gas
Pressure, office put, the stability of the state such as dielectric loss, temperature.It is therefore desirable to each important state is monitored in real time, and special
Door, for electronic mutual inductor on-line monitoring, needs to introduce independent monitoring device, and carries out complete data modeling, and numeral
Change electronic mutual inductor quantity in transformer station more, therefore implement extremely complex, and relatively costly.
Summary of the invention
Based on this, it is necessary to the reliability for conditional electronic formula transformer is relatively low, and independently monitors electronic mutual inductor
Device implement complexity, relatively costly defect, it is provided that a kind of electronic mutual inductor state collecting device.
A kind of electronic mutual inductor state collecting device, including: state sensor and cabinet, described cabinet is used for being installed on
On electronic mutual inductor, it is provided with state acquisition module, collection of simulant signal module and Digital Signal Processing in described cabinet logical
News module, described state sensor is used for being connected with described electronic mutual inductor, described state sensor and described state acquisition
Module connects, and described state acquisition module and described collection of simulant signal module are all with described Digital Signal Processing communication module even
Connecing, described collection of simulant signal module is for being connected with described electronic mutual inductor, and described Digital Signal Processing communication module is used
In being connected with merging module.
In one embodiment, the quantity of described state sensor is set to multiple, multiple described state sensors all with
Described state acquisition module connects.
In one embodiment, multiple described state sensors are uniformly distributed in the outer surface of described electronic mutual inductor.
In one embodiment, described state sensor includes gaseous state sensor.
In one embodiment, described state sensor includes temperature sensor.
In one embodiment, described state sensor includes humidity sensor.
In one embodiment, current sensor, described current sensor and described collection of simulant signal module are also included
Connecting, described current sensor is for being connected with described electronic mutual inductor.
In one embodiment, voltage sensor, described voltage sensor and described collection of simulant signal module are also included
Connecting, described voltage sensor is additionally operable to be connected with described electronic mutual inductor.
In one embodiment, data processing module, described data processing module and described Digital Signal Processing are also included
Communication module connects.
In one embodiment, described merging module Digital Signal Processing communication module is also included.
Above-mentioned electronic mutual inductor state collecting device, while Real-time Collection current and voltage signals, also to electronics
The running status of formula transformer carries out on-line monitoring, and sends current and voltage signals and running state data to merging mould
Block, it is achieved that the comprehensive monitoring to the operation of electronic mutual inductor, thus improve electronic mutual inductor reliability of operation, it is to avoid
Construction electronic mutual inductor on-Line Monitor Device, the framework of the present invention is the simplest, implement the simplest, effectively reduce into
This.
Accompanying drawing explanation
Fig. 1 is the module frame chart of the electronic mutual inductor state collecting device of an embodiment；
Fig. 2 is the module frame chart of the electronic mutual inductor state collecting device of another embodiment.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, with certain large-scale provincial power network for implementing
Example, is further elaborated to the present invention in conjunction with accompanying drawing.Should be appreciated that specific embodiment described herein only in order to
Explain the present invention, be not intended to limit the present invention.
Such as, the electronic mutual inductor state acquisition of a kind of state for gathering electronic mutual inductor state collecting device
Device, comprising: state sensor and cabinet.Such as, described cabinet is used for being installed on described electronic mutual inductor；Such as,
State acquisition module, collection of simulant signal module and Digital Signal Processing communication module it is provided with in described cabinet, such as,
Described state sensor is for being connected with described electronic mutual inductor, and described state sensor is with described state acquisition module even
Connecing, described state acquisition module is connected with described Digital Signal Processing communication module, and, described collection of simulant signal module with
Described Digital Signal Processing communication module connects, and such as, described collection of simulant signal module is used for and described electronic mutual inductor
Connecting, such as, described Digital Signal Processing communication module is for being connected with merging module.Such as, described merging module is also included.
As it is shown in figure 1, an embodiment of electronic mutual inductor state collecting device of the present invention, including: state sensor
110 and cabinet, described cabinet is used for being installed on electronic mutual inductor, is provided with state acquisition module 130, mould in described cabinet
Intending signal acquisition module 150 and Digital Signal Processing communication module 170, described state sensor 110 is used for and described electronic type
Transformer connects, and described state sensor 110 is connected with described state acquisition module 130, described state acquisition module 130 and institute
State collection of simulant signal module 150 to be all connected with described Digital Signal Processing communication module 170, described collection of simulant signal module
150 for being connected with described electronic mutual inductor, and described Digital Signal Processing communication module 170 is used for and merges module 210 even
Connect.
State sensor 110 is for detecting the various states of electronic mutual inductor, including air pressure, temperature, humidity etc., example
As, this state sensor 110 is for detected air pressure data, temperature data and humidity data, and such as, electronic mutual inductor is additionally operable to
The detection shelf depreciation state of electric mutual inductor, state of insulation and dielectric loss state；Such as, state acquisition module 130 is used for
Gathering the various states of electronic mutual inductor, state acquisition module 130 is for obtaining the air pressure number of state sensor 110 detection
According to, temperature data and humidity data, and barometric information, temperature data and humidity data are sent to Digital Signal Processing communication mould
Block 170, such as, state acquisition module 130 is additionally operable to obtain state of insulation information and the dielectric loss of state sensor 110 detection
Status information；Collection of simulant signal module 150 is used for detecting current data and the voltage data of electronic mutual inductor, and by electric current
Data and voltage data send to Digital Signal Processing communication module 170；Digital Signal Processing communication module 170 is used for receiving shape
State acquisition module 130 and the data of collection of simulant signal module 150, such as, Digital Signal Processing communication module 170 is used for receiving
State acquisition module 130 and the analogue signal of collection of simulant signal module 150, and this analogue signal is converted to digital signal,
Send to merging module 210.
Above-mentioned electronic mutual inductor state collecting device, while Real-time Collection current and voltage signals, also to electronic type
The running status of transformer carries out on-line monitoring, and sends current and voltage signals and running state data to merging module
210, it is achieved that the comprehensive monitoring to the operation of electronic mutual inductor, thus improve electronic mutual inductor reliability of operation, keep away
Having exempted from construction electronic mutual inductor on-Line Monitor Device, the framework of the present invention is the simplest, implements the simplest, effectively reduces into
This.
In order to obtain the state of electronic mutual inductor the most accurately, in one embodiment, referring again to Fig. 1, institute
The quantity stating state sensor 110 is set to multiple, multiple described state sensors 110 all with described state acquisition module 130
Connect.Such as, multiple described state sensors 110 are uniformly distributed in the outer surface of described electronic mutual inductor.So, Duo Gesuo
State sensor can the state of diverse location on electronic mutual inductor be detected such that it is able to obtain the most accurate state
Data, such as, multiple state sensors 110 are identical state sensor 110, and such as, multiple state sensors 110 are same
The state sensor 110 of class, the most multiple state sensors 110 are used for detecting same type of state, and such as, multiple states sense
Device 110 is temperature sensor, so, obtains the temperature of multiple positions on electronic mutual inductor surface, it is possible to make electronics
The temperature detection of formula transformer is the most accurate, it is to avoid the error of the testing result that partial deviations cause.And for example, multiple states sensing
Device 110 is different state sensor 110, such as, and multiple different settings of state sensor 110, such as, multiple state sensors
110 is inhomogeneous state sensor 110, and the most multiple state sensors 110 are respectively used to detect different types of state, example
As, multiple state sensors 110 are respectively used to detect temperature, humidity, gaseous state etc., in such manner, it is possible to obtain electronics all sidedly
The state of formula transformer, thus effectively realize the monitoring to electronic mutual inductor.
It is noted that electronic mutual inductor is high-voltage electrical equipment, in order to improve safety, need mutual in electronic type
It is filled with sulfur hexafluoride (SF6) gas in sensor, to improve the insulating properties of electronic mutual inductor, improves safety.In order to hexafluoro
Change sulfur gas to detect, to obtain the state of electronic mutual inductor in real time, it is to avoid cause due to leakage of sulfur hexafluoride gas
The fault of electronic mutual inductor, or short circuit, in one embodiment, described state sensor 110 includes that gaseous state passes
Sensor 110, such as, this gaseous state sensor 110 includes baroceptor, and such as, this gaseous state sensor 110 includes wet
Degree sensor, such as, this gaseous state sensor 110 includes temperature sensor, and specifically, this gaseous state sensor 110 is used
In the detection air pressure of sulfur hexafluoride gas, Wei Shui (volume ratio: ppmv (V is that subscript represents with volume as parameter) each million
Volume number shared by contained humidity in the gas unit volume of part) and temperature etc., thus comprehensively in electronic mutual inductor
The gaseous state of sulfur hexafluoride gas is comprehensively monitored, it is to avoid the electronic type caused due to leakage of sulfur hexafluoride gas is mutual
The fault of sensor or short circuit, be effectively improved the safety of electronic mutual inductor.
In order to realize the comprehensive monitoring to electronic mutual inductor, in one embodiment, described state sensor 110 wraps
Include temperature sensor.Such as, described state sensor 110 includes humidity sensor.In such manner, it is possible to get electronic mutual inductor
Temperature, humidity, thus judge that electronic mutual inductor is whether abnormal, it is possible to be effectively improved the reliability of electronic mutual inductor.Example
As, sensor is put in the described state sensor 110 also office of including, in each embodiment, i.e. shelf depreciation, such as, described state are put in office
Sensor 110 also includes capacitive electrical formula transformer dielectric loss sensor, and such as, sensor is put for detecting electronic type in this office
The shelf depreciation state of transformer and state of insulation, it is mutual that capacitive electrical formula transformer dielectric loss sensor is used for detecting electronic type
The dielectric loss state of sensor, such as, this office puts the sensor office of including and puts tester, for detecting the shelf depreciation of measured object
Electricity, the measuring method of conventional shelf depreciation includes pulse current method and radio interference voltage method.
In one embodiment, referring again to Fig. 1, also include current sensor 151, described current sensor 151 with
Described collection of simulant signal module 150 connects, and described current sensor 151 is for being connected with described electronic mutual inductor.Such as,
Also including that voltage sensor 153, described voltage sensor 153 are connected with described collection of simulant signal module 150, described voltage passes
Sensor 153 is for being connected with described electronic mutual inductor.Specifically, current sensor 151 and voltage sensor 153 are respectively used to
It is connected to electronic mutual inductor, current sensor 151 and voltage sensor 153 and is respectively used to detect the electric current of electronic mutual inductor
And voltage, thus obtaining current data and the voltage data of electronic mutual inductor, collection of simulant signal module 150 gathers electric current and passes
Sensor 151 and the current data of voltage sensor 153 and voltage data, and send to Digital Signal Processing communication module 170, enter
And realize detecting the state of electronic mutual inductor the most extremely.In the present embodiment, current sensor 151 includes low-power consumption iron core
Coil, Luo-coil, coaxial capacitance potential dividing ring and capacitive divider etc., voltage sensor 153 includes low-power consumption iron-core coil, sieve
Family name's coil, coaxial capacitance potential dividing ring and capacitive divider etc..
In one embodiment, referring again to Fig. 1, electronic mutual inductor state collecting device also includes that data process mould
Block 230, described data processing module 230 is connected with described Digital Signal Processing communication module 170.Such as, described data process
Module 230 is connected with described Digital Signal Processing communication module 170 by optical fiber.Such as, this data processing module 230 is used for
After described Digital Signal Processing communication module 170 obtains digital signal, processing digital signal, detection digital signal is
No there is error, when digital signal exists error, generate corrected parameter, and this corrected parameter is sent to described digital signal
Process communication module 170；Described Digital Signal Processing communication module 170 is additionally operable to receive described data processing module 230 and sends
Corrected parameter, and according to described corrected parameter, digital signal is modified, obtains revised digital signal.
Such as, this digital signal carries information or data include: current data, voltage data, barometric information, temperature number
According to and humidity data, such as, this data processing module 230 is for obtaining electricity from described Digital Signal Processing communication module 170
After flow data and voltage data, processing current data and voltage data, whether detection current data and voltage data
There is error, generate corrected parameter, and this corrected parameter is sent to described Digital Signal Processing communication module 170；Described number
Word signal processing communication module 170 is additionally operable to receive the corrected parameter that described data processing module 230 sends, and repaiies according to described
Current data and voltage data are modified by positive parameter, obtain revised current data and voltage data, so that electric
Flow data and voltage data are the most accurate.
In one embodiment, referring again to Fig. 1, electronic mutual inductor state collecting device also includes merging module
210, described Digital Signal Processing communication module 170 is connected with described merging module 210；Such as, module is merged for by described
The digital signal of Digital Signal Processing communication module merges process, such as, merge coding output.Such as, this merging mould
Block 210 is additionally operable to be connected with monitoring device, such as, merges module 210 for by the numeral of Digital Signal Processing communication module 170
Signal sends to monitoring device, and this merging module 210 is for comprising electronic type by what Digital Signal Processing communication module 170 sent
The digital signal of each state of transformer merges coding output, and exports to monitoring device, such as, extracts current data, electricity
Pressure data, barometric information, temperature data and the string data of humidity data, successively merge above-mentioned string data, and compile
Code output, such as, successively merges above-mentioned string data, and carries out Manchester's code output.Monitoring device is to this numeral
Signal processes, and resolves, and to judge that electronic mutual inductor state is the most abnormal, and sends alarm with this.
Specifically, module is merged for sending digital signal to monitoring modular.Such as, merge module and support that light B code is same
Step, synchronization accuracy≤1 μ s, can pass through IEC61850 and FT3 standard agreement output mutual inductor electric current and voltage, temperature, humidity, pressure
By force, strain, vibrate and transformer various failure volume information, such as, merge module for monitoring device output current several
According to, voltage data, temperature data, humidity data, pressure data, strain data, vibration information and the malfunction of transformer
Amount information.
Monitoring device receives after merging current data, voltage data and the running state data that module sends, to electric current number
According to, voltage data and the process of running state data verification and verification, it is achieved to electronic mutual inductor on-line testing and status number
According to MMS (Manufacturing Message Specification, manufacture message specification) conversion, and by this on-line testing
Data and status data are sent to data analysis device by communication unit, specifically, after data carried out MMS conversion, send
To data analysis device.
After data analysis device receives on-line testing data and the status data of monitoring device, this check number of real time parsing
According to and status data, it is judged that verification data and the effectiveness of status data, and the classification according to verification data and status data is defeated
Go out warning signal, alert.
Specifically, data analysis device by analyze the current data of electronic mutual inductor, voltage data, temperature data,
Whether the physical quantity numerical value such as humidity data, pressure data, strain data, vibration information are more than predetermined threshold value, electric current and voltage
Single-point whether saltus step, whether amplitude is more than predetermined threshold value, and sampled data is the most abnormal, and synchronised clock is the most abnormal, and then judges
Electronic mutual inductor is the most working properly, and when judging that electronic mutual inductor is working properly, then verification data are effective.
Described monitoring device is additionally operable to carry out data parsing according to IEC61850 and FT3 standard agreement, by based on data
The high accuracy algorithm adding the peaceful convolution window of the second order Chinese of pretreatment extracts amplitude and the phase place of fundametal compoment, and calculates ratio, angle
Difference and combination misalignment, draw precision curve according to ratio, angular difference, analyze the data precision of electronic mutual inductor, suddenly change precision
Or the precision drift situation such as exceed standard sends alarm, and setting up on-line testing MMS information table, such as, described monitoring device is additionally operable to
By the current data of electronic mutual inductor, voltage data, temperature data, humidity data, pressure data, strain data, vibration letter
The failure volume information of breath and transformer carries out MMS conversion, and sets up on-line monitoring MMS information table, sends to data solution
Analysis apparatus.Such as, described monitoring device is additionally operable to the current data of electronic mutual inductor, voltage data, temperature data, humidity
The failure volume information of data, pressure data, strain data, vibration information and/or transformer, carries out MMS conversion, and sets up
On-line monitoring MMS information table, sends to data analysis device.
Described data analysis device for according to on-line monitoring MMS information table and on-line testing MMS information table to electronic type
The effectiveness of the verification data of transformer carries out analysis judgment, carries out alerting analysis and assessment and comprehensive descision, described data parsing
Device is additionally operable to arrange alarm level and alarm mode according to instruction, alerts by default classification information, alarm level, and
Formation visualization result exports, output far and resultant fault statistical report.
A specific embodiment be presented herein below:
In the present embodiment, as in figure 2 it is shown, electronic mutual inductor state collecting device includes: state sensor, state are adopted
Collection module, collection of simulant signal module, Digital Signal Processing communication module, described state sensor is distributed in electronic mutual inductor
Everywhere, described state acquisition module, collection of simulant signal module and Digital Signal Processing communication module are integrated in same machine to body
In case, and described cabinet is installed on electronic mutual inductor body.
In the present embodiment, the electric current that analogue signal input is electronic mutual inductor of described collection of simulant signal module passes
Sense unit or the analogue signal of voltage sensor unit output, described current sensing unit or voltage sensor unit include low-power consumption ferrum
Core coil, Luo-coil, coaxial capacitance potential dividing ring and capacitive divider etc..
In the present embodiment, described state sensor can state in sensing electronic formula transformer running, including
State and capacitive electrical formula transformer dielectric loss etc., described SF6 gaseous state are put in SF6 gaseous state, electronic mutual inductor office
Including the pressure of SF6 gas, micro-water and temperature etc..
In the present embodiment, described state sensor can be the independent sensor of the sensing only for certain state, or
Different standalone sensor to different states.
In the present embodiment, described state acquisition module is connected with multiple state sensors, senses with multiple states simultaneously
Device carries out communication and obtains the corresponding state signal of state sensor.
In the present embodiment, the connection of above-mentioned each module is for being electrically connected with, it may for example comprise 485 interface communications connect, switch
Amount input connection and sensor power power supply output etc..
In the present embodiment, described Digital Signal Processing communication module receives and adopts from state acquisition module and analogue signal
The digital signal of collection module output, and digital signal is processed, generate current and voltage signals and status information accurately.
In the present embodiment, described Digital Signal Processing communication module comprises man-machine interface, its by fiber optic Ethernet with
Host computer carries out communication, and Content of communciation includes uploading of digital signal, and the uploading and issuing of parameter.In the present embodiment, number
It is host computer according to processing module.
In the present embodiment, by current/voltage check system and corresponding status signal check system, numeral is measured
The error of the digital signal that signal processing communication module sends, processes according to the calculating of host computer, obtains corresponding corrected parameter,
Carrying out parameter through man-machine interface and be issued to Digital Signal Processing communication module, described Digital Signal Processing receives with communication module
From the corrected parameter of host computer, and it is modified processing to corresponding digital signal according to corrected parameter, finally gives accurately
Current and voltage signals and each status signal.
In the present embodiment, described merging module finally exports serial digital signal based on spread fiber, described signal
Following IEC61850 and FT3 standard agreement, content includes voltage and current signal and each status signal.Described IEC61850 standard is assisted
View includes IEC61850-7-2, IEC61850-8-1, IEC61850-9-2 and IEC61850-9-2LE.
In the present embodiment, the analogue signal input of described collection of simulant signal module is single from curtage sensing
Unit, including low-power consumption iron-core coil, Luo-coil, coaxial capacitance potential dividing ring, capacitive divider, wherein low-power consumption iron-core coil is defeated
Go out 0.1A current signal, obtain 0.25V voltage through 2.5 ohm of precision resister samplings and sample；Luo-coil exports
0.5V voltage, its phase place and primary current are differential relationship, therefore need before sampling or be integrated after sampling to signal processing；With
Axle capacitance partial pressure ring and capacitive divider export about 2V voltage signal.The actual sample rate of collection of simulant signal module is 4000
Point/second.
Described state sensor includes that SF6 gaseous state, electronic mutual inductor office are put, capacitive electrical formula transformer medium damages
Consumption etc..Wherein SF6 gaseous state sensor is connected with the air chamber of electronic mutual inductor by instrument special purpose interface on SF6 air chamber
Logical, use the status informations such as macromolecule membrane capacitance sensing the detection micro-water content of SF6 gas, air pressure, temperature, and be converted into number
Word amount, is exported to state acquisition module by 485 interfaces；Electronic mutual inductor office puts sensor and uses hyperfrequency (UHF, Ultra
High Frequency) realize quickly detecting, analyze and diagnosing Partial discharge signal, output office puts maximum, discharge time, puts
The information such as electricity type；Capacitive electrical formula transformer dielectric loss sensor uses low current sensor and capacitive divider to adopt respectively
Collection leakage current and primary voltage, calculate phase angle difference and dielectric dissipation factor tan according to leakage current and primary voltage
σ, wherein, σ is dielectric loss angle, and dielectric dissipation factor tan σ is nondimensional physical quantity, is active power and reactive power
Ratio, for monitoring the dielectric loss of capacitive electrical formula transformer, ratio is the least, and the energy of capacitive electrical formula transformer is described
(active power) loss is the least, and energy is all used for exchanging, and performance is the best, and by digital interface by phase angle difference and dielectric loss
Factor tan σ exports to state acquisition module.
Described state acquisition module is connected with multiple state sensors, and state acquisition module includes communication part and electricity
Source part, wherein power pack is converted to, by the power insert of harvester, the insulating power supply that multichannel amplitude is 24V, for multiple
State sensor provides power supply；Communication part uses MODBUS agreements based on 485, and multiple state sensors can be distinguished
It is connected with state acquisition module by independent 485 holding wires, it is also possible to hang in same group of 485 buses；State acquisition module is adopted
Access each state sensor by the mode of poll, per second send a visit order, therefore each state sensor output state
The cycle of information is the several seconds, depends on the number of carry state sensor.
Described Digital Signal Processing communication module receives from state acquisition module and the number of collection of simulant signal module
Word signal, wherein state acquisition module carries out communication, simulation letter by the CAN of backboard and Digital Signal Processing communication module
Number acquisition module is relatively big due to data volume, transmits data by SPI protocol.
Additionally, Digital Signal Processing communication module comprises man-machine interface part, can be entered with host computer by fiber optic Ethernet
Row communication, Content of communciation includes uploading of digital signal, and the uploading and issuing of corrected parameter.Owing to analogue signal is adopted
, inevitably there is certain droop, so needing analogue signal and status number in collection and the collection of status data
According to being modified.By current/voltage check system and corresponding status signal check system, measure Digital Signal Processing and lead to
The error of the digital signal that news module sends, according to the calculating of host computer, obtains corresponding corrected parameter, and host computer is through man-machine
Interface issues corrected parameter to Digital Signal Processing communication module, and Digital Signal Processing receives from host computer with communication module
Corrected parameter, and be modified processing to corresponding digital signal according to corrected parameter, finally give current and voltage signals accurately
And each status signal.
After Digital Signal Processing and communication module complete the process to current and voltage signals and each state quantity signal, will be all
The digital quantity of signal is packaged into a packet simultaneously, exports by turn in the way of serial data, and it is carried out Manchester
Coding, the speed of serial data is 2.5Mbit/S, carries out Manchester's code with the speed of 5M/S, defeated eventually through optical module
Go out, send after spread fiber to merging module.
Should be noted that in said system embodiment, included modules simply carries out drawing according to function logic
Point, but it is not limited to above-mentioned division, as long as being capable of corresponding function；It addition, each functional module is concrete
Title also only to facilitate mutually distinguish, is not limited to protection scope of the present invention.
It addition, one of ordinary skill in the art will appreciate that all or part of step realizing in the various embodiments described above method
The program that can be by completes to instruct relevant hardware, and corresponding program can be stored in read/write memory medium.
Each technical characteristic of embodiment described above can combine arbitrarily, for making description succinct, not to above-mentioned reality
The all possible combination of each technical characteristic executed in example is all described, but, as long as the combination of these technical characteristics is not deposited
In contradiction, all it is considered to be the scope that this specification is recorded.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed, but also
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that, come for those of ordinary skill in the art
Saying, without departing from the inventive concept of the premise, it is also possible to make some deformation and improvement, these broadly fall into the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.
Claims (10)
1. an electronic mutual inductor state collecting device, it is characterised in that including: state sensor and cabinet, described cabinet
For being installed on electronic mutual inductor, in described cabinet, it is provided with state acquisition module, collection of simulant signal module and numeral
Signal processing communication module, described state sensor is used for being connected with described electronic mutual inductor, described state sensor and institute
State state acquisition module connect, described state acquisition module and described collection of simulant signal module all with described Digital Signal Processing
Communication module connects, and described collection of simulant signal module is used for being connected with described electronic mutual inductor, described Digital Signal Processing
Communication module is for being connected with merging module.
Electronic mutual inductor state collecting device the most according to claim 1, it is characterised in that described state sensor
Quantity is set to multiple, and multiple described state sensors are all connected with described state acquisition module.
Electronic mutual inductor state collecting device the most according to claim 2, it is characterised in that multiple described states sense
Device is uniformly distributed in the outer surface of described electronic mutual inductor.
Electronic mutual inductor state collecting device the most according to claim 2, it is characterised in that described state sensor bag
Include gaseous state sensor.
Electronic mutual inductor state collecting device the most according to claim 2, it is characterised in that described state sensor bag
Include temperature sensor.
Electronic mutual inductor state collecting device the most according to claim 2, it is characterised in that described state sensor bag
Include humidity sensor.
Electronic mutual inductor state collecting device the most according to claim 1, it is characterised in that also include current sense
Device, described current sensor is connected with described collection of simulant signal module, and described current sensor is for mutual with described electronic type
Sensor connects.
Electronic mutual inductor state collecting device the most according to claim 1, it is characterised in that also include voltage sensor
Device, described voltage sensor is connected with described collection of simulant signal module, and described voltage sensor is additionally operable to and described electronic type
Transformer connects.
Electronic mutual inductor state collecting device the most according to claim 1, it is characterised in that also include that data process mould
Block, described data processing module is connected with described Digital Signal Processing communication module.
Electronic mutual inductor state collecting device the most according to claim 1, it is characterised in that also include described merging
Module Digital Signal Processing communication module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957819.6A CN106324546A (en) | 2016-10-27 | 2016-10-27 | Electronic transformer state acquisition device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610957819.6A CN106324546A (en) | 2016-10-27 | 2016-10-27 | Electronic transformer state acquisition device |
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| CN106324546A true CN106324546A (en) | 2017-01-11 |
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| CN201610957819.6A Pending CN106324546A (en) | 2016-10-27 | 2016-10-27 | Electronic transformer state acquisition device |
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| CN109591730A (en) * | 2018-12-13 | 2019-04-09 | 华域汽车车身零件（上海）有限公司 | A kind of CAN data package processing method based on current sensor |
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| CN113884964A (en) * | 2021-10-27 | 2022-01-04 | 云南电网有限责任公司电力科学研究院 | AC/DC electronic mutual inductor operation inspection instrument |
| CN115097192A (en) * | 2022-08-24 | 2022-09-23 | 西安兴汇电力科技有限公司 | Encryption type integrated electronic transformer |
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