CN107219492A - Medium voltage network electric energy metrical high pressure integration semi-physical simulation device - Google Patents
Medium voltage network electric energy metrical high pressure integration semi-physical simulation device Download PDFInfo
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- CN107219492A CN107219492A CN201710269675.XA CN201710269675A CN107219492A CN 107219492 A CN107219492 A CN 107219492A CN 201710269675 A CN201710269675 A CN 201710269675A CN 107219492 A CN107219492 A CN 107219492A
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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
- G01R35/04—Testing or calibrating of apparatus covered by the other groups of this subclass of instruments for measuring time integral of power or current
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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
- G01R35/005—Calibrating; Standards or reference devices, e.g. voltage or resistance standards, "golden" references
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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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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B17/00—Systems involving the use of models or simulators of said systems
- G05B17/02—Systems involving the use of models or simulators of said systems electric
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Abstract
The invention discloses a kind of integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure.The standard criterion of existing electric energy measuring equipment, can not meet for the adaptability check requirements under emerging complex electric network running environment.The present invention includes transformer secondary singal connection circuit, transformer error calculator, low -voltage Watt -hour meter Error Calculator, high-voltage electric energy meter Error Calculator and the integrated semi-physical simulation control platform of medium voltage network electric energy metrical high pressure；The integrated semi-physical simulation control platform of described medium voltage network electric energy metrical high pressure includes data acquisition module, electric energy metrical operational mode control module, modeling and simulating module, live recording input module, electricity waveform and error information module, display module, power quality analysis module and emulation and measured waveform data interface module.The present invention can build the medium voltage network electric energy metrical scene operation simulated environment that there is power quality problem, and realize l-G simulation test in such circumstances.
Description
Technical field
The invention belongs to electric energy measuring equipment calibration technology field, more particularly to a kind of medium voltage network electric energy metrical high pressure one
Body semi-physical simulation device.
Background technology
The use of a large amount of non-linear power electronics loads and the introducing of distributed new so that electric energy measuring equipment work
Make in complicated operation of power networks environment.The operation troubles rate of the electric energy measuring equipments such as current intelligent electric energy meter is higher, causes
The hidden danger of power supply enterprise's electric energy metrical community service, and operation of power networks environmental factor is cause electric energy measuring equipment failure main
One of reason.Electric energy measuring equipment include intelligent electric energy meter, digitalized electrical energy meter, high-voltage electric energy meter, electromagnetic transformer and
Electric energy metrical single unit system etc., meter characteristic and work of these electric energy measuring equipments under existing complex electric network running environment can
Verification is needed badly by property, but nonlinear load and the uncertainty of distributed new access make in modern power network actual motion
The running environment for obtaining electric energy measuring equipment is changeful, therefore determines that electric energy measuring equipment metering is special by field-checking work
Property validity have a greatly reduced quality, and the complex electric network running environment of existing laboratory electric energy measuring equipment calibration equipment reproduce and
The ability and Shortcomings verified under complex electric network running environment to electric energy measuring equipment.
On the other hand, the standard criterion of existing electric energy measuring equipment, more particularly to quality management and control, detection project and inspection
Content in terms of survey method, can not meet for the adaptability check requirements under emerging complex electric network running environment.
Therefore, it is quite necessary to which complex electric network running environment and in such circumstances progress electric energy measuring equipment school can easily be reproduced by building
The device tested, such device contributes to the quality management and control of electric energy measuring equipment, detection method improvement, failure regression analysis, meter
Measure the exploration and application of new principle method and new equipment.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of medium voltage network for the defect that overcomes above-mentioned prior art to exist
Electric energy metrical high pressure integration semi-physical simulation device, it can put forward be for experiment piezoelectricity pressure and three-phase electricity in three-phase simultaneously
Stream, three-phase current is in middle pressure condition, is imitated so as to build the medium voltage network electric energy metrical scene operation that there is power quality problem
True environment, and realize in such circumstances high-voltage electric energy meter, intelligent electric energy meter, digitalized electrical energy meter, electromagnetic transformer and in
Press the verification and detection of the metering performance and function of electric energy metrical single unit system.
Therefore, the present invention is adopted the following technical scheme that：The integration semi-physical simulation examination of medium voltage network electric energy metrical high pressure
Experiment device, including device three-phase working power, A phases standard current transformer, A phases standard potential transformer, C phase normalized currents are mutual
Sensor, C phases standard potential transformer, transformer secondary singal connection circuit, three-phase standard electric energy meter, transformer error are calculated
Device, subject three-phase electric energy meter, low -voltage Watt -hour meter Error Calculator, high-voltage electric energy meter Error Calculator and medium voltage network electric energy metrical
High pressure integration semi-physical simulation control platform；
The integrated semi-physical simulation control platform of described medium voltage network electric energy metrical high pressure includes data acquisition module
Block, electric energy metrical operational mode control module, modeling and simulating module, live recording input module, electricity waveform and error information
Module, display module, power quality analysis module and emulation and measured waveform data interface module；
Described data acquisition module receives three-phase standard electric energy meter, transformer error calculator, low-voltage electric energy Watch Error
The secondary letter of calculator, high-voltage electric energy meter Error Calculator and all transformers from transformer secondary singal connection circuit
Number；Modeling and simulating module receives the control information that sends of electric energy metrical operational mode control module and carries out modeling and simulating, so that
Produce the electric current and voltage operation simulation waveform data of medium voltage network stoichiometric point；Electricity waveform and error information module collection come from
The information of data acquisition module, modeling and simulating module and live recording input module, and corresponding electric current and voltage operation is imitative
True Wave data, the secondary singal data of all transformers, various error informations are sent to display module and shown in real time, together
When electric current and voltage run into simulation waveform data, the secondary singal data of all transformers are sent to power quality analysis module
Power quality analysis is carried out, analysis result is shown by display module, and electric current and voltage are run into simulation waveform number
According to, A phases standard current transformer, A phases standard potential transformer, C phases standard current transformer, C phase standard potential transformers
Secondary singal is sent to emulation and measured waveform data interface module.
The present invention is directed to medium voltage network system, real using hardware such as test voltage current generation device and electric energy measuring equipments
Thing simulates the semi-physical simulation technology that technology is combined with computer software, builds the simulation test apparatus of electric energy measuring equipment.
The present invention freely builds virtual operation of power networks by setting topological structure of electric, distributed new and nonlinear load
Environment, electricity waveform sampling is carried out to metering points of electric energy, and reproduces actual operation by test voltage current generation device imitating
True environment.Test current is in middle pressure condition and enters horizontal high voltage integration to electric energy measuring equipment using the principle of virtual work by the present invention
Verification, transformer error is calculated using polar coordinate representation method, and middle pressure operation l-G simulation test environment carries out real-time electric energy matter
Amount analysis, using the simulation accuracy of Closed loop Control guarantee test voltage and current.The present invention can meet high voltage electric energy simultaneously
Table, intelligent electric energy meter, digitalized electrical energy meter, the verification of electromagnetic transformer and middle pressure electric energy metrical single unit system, device symbol
Close GB/T 11150-2001《Calibrator for watt-hour meter》、JJG 597-2005《AC electrical energy meter calibration vertification regulation》、
JJG 1036-1993《AC electrical energy meter calibration test specification》、DL/T 585-1995《Electronic type standard electric energy meter technology
Condition》、DL/T 460-1992《Electric energy meter calibrating apparatus vertification regulation》、DL/T 731-2000《Electric energy meter measurement error meter
Calculate device》、JJG 596-2012《Electronic electric energy meter vertification regulation》、DL460-2005《Electric energy meter calibrating apparatus vertification regulation》、
JG307-2006《AC energy meter vertification regulation》、DL/T614-2007《Multifunctional electric energy meter》、DL/T645-2007《It is multi-functional
Electric energy meter communication protocol》Etc. the requirement of national standard, professional standard and measurement verification regulations.Such medium voltage network electric energy metrical
High pressure integration semi-physical simulation device there are no patent and document report.
Further, present invention additionally comprises current lifting device, A phase voltage waveform journeys are pressed in A phase current waveforms programmable power supply, A phases
Control in power supply, A phases and press current lifting device, C phase voltage waveforms programmable power supply, C in pressure booster, C phase current waveforms programmable power supply, C phases
Press booster, A phases to be tested current transformer, subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system, A phases in phase and be tested electricity
Pressure transformer, C phases are tested current transformer and are tested voltage transformer with C phases.
Further, described subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system include A phases metering units and C
Phase metering units.
Further, described device three-phase working power is program control to A phase current waveforms programmable power supply, A phase voltage waveforms
Power supply, C phase current waveforms programmable power supply and C phase voltage waveforms programmable power supply provide three-phase four-wire system working power, A phase current ripples
Shape programmable power supply, A phase voltage waveforms programmable power supply, C phase current waveforms programmable power supply and C phase voltage waveform programmable power supplys connect respectively
The voltage x current emulation from emulation with measured waveform data interface module and measured waveform data are received, and according to respective waveform
Data drive to press in A phases in current lifting device, A phases respectively presses booster in pressure booster, C phases in pressure current lifting device and C phases so that A phases
Booster is pressed to export A phase studies electric current, A phases respectively in pressure current lifting device and C phases in pressure booster, C phases in middle pressure current lifting device, A phases
Test voltage, C phase studies electric current and C phase study voltages.
Further, A phases standard current transformer, A phases are tested current transformer, A phases standard potential transformer, A phase quilts
Examination voltage transformer, C phases are tested current transformer, C phases standard current transformer, C phases and are tested voltage transformer and C phase standard electrics
The secondary output port of transformer is pressed to be connected respectively with corresponding input port on transformer secondary singal connection circuit, mutual inductance
Device secondary singal connects circuit by A phases standard current transformer, A phases standard potential transformer, C phases standard current transformer, C phases
The secondary singal of standard potential transformer is supplied to three-phase standard electric energy meter, and A phases are tested by transformer secondary singal connection circuit
Current transformer, A phases, which are tested voltage transformer, C phases and are tested current transformer, C phases and are tested the secondary singal of voltage transformer, to be carried
The secondary singal of all transformers is supplied to transformer to miss by supply subject three-phase electric energy meter, transformer secondary singal connection circuit
Poor calculator, low -voltage Watt -hour meter Error Calculator receives the output letter of three-phase standard electric energy meter and subject three-phase electric energy meter simultaneously
Number, high-voltage electric energy meter Error Calculator receives three-phase standard electric energy meter and subject high-voltage electric energy meter simultaneously or middle pressure electric energy metrical is whole
The output signal of body device.
Further, for A phase current waveform programmable power supplys, it is marked by comparing A phase current simulation waveform data with A phases
The secondary singal data of quasi- current transformer carry out closed-loop control to the A phase studies electric current that current lifting device output is pressed in A phases so that A
Phase study current waveform is tried one's best close to the requirement of A phase current simulation waveform data, is flowed up for pressing to press in booster, C phases in A phases
Booster is pressed in device and C phases, identical closed-loop control is also carried out.
Further, A phase current waveforms programmable power supply, A phase voltage waveforms programmable power supply, C phase current waveforms programmable power supply,
It is identical with the fundamental wave for the electricity waveform that C phase voltage waveforms programmable power supply is exported, fundamental wave value in the range of setting.
Further, for the selection of mutual inductor ratio, it is desirable to A phases standard current transformer and C phase normalized current mutual inductances
Device, A phases standard potential transformer and C phases standard potential transformer, A phases are tested current transformer and C phases be tested current transformer,
The no-load voltage ratio that A phases are tested voltage transformer with C phases are tested voltage transformer is identical, but is not required for standard current transformer and subject
The no-load voltage ratio of current transformer is equal, does not also require that standard potential transformer is equal with the no-load voltage ratio for being tested voltage transformer.
Further, transformer secondary singal connects circuit by A phases standard potential transformer and C phase standard potential transformers
Two secondary singal output ports connect into phase three-wire three port, and with the three-phase voltage input port of three-phase standard electric energy meter
It is connected, A phases are tested transformer secondary singal connection circuit into voltage transformer and two that C phases are tested voltage transformer are secondary
Signal output port connects into phase three-wire three port, and is connected with the three-phase voltage input port for being tested three-phase electric energy meter.Mutually
Sensor Error Calculator receives the secondary output signal of all transformers, and the fundamental wave of each signal is then calculated using fourier-transform
Harmonious wave component, and the polar coordinate representation method defined by transformer error carries out each subject transformer fundamental wave harmonic degree of accuracy
Verification.
Further, data acquisition module is except collection three-phase standard electric energy meter, low -voltage Watt -hour meter Error Calculator and height
Outside the output information for pressing electric energy meter error calculator, the secondary singal of all transformers is also collected and from transformer error meter
Calculate the harmonious wave component of fundamental wave of the secondary output signal of each transformer of device, the secondary output information of these transformers and its fundamental wave and
Harmonic component information gives power quality analysis module by electricity waveform and error information module transfer, so as to according to the quality of power supply
National standard carries out the qualitative and quantitative analysis of various power quality problems.
The testing program of the present invention can carry out being manually entered selection by electric energy metrical operational mode control module, test
Scheme mainly has three kinds：(1) test voltage current waveform is specified.Support the electricity of pressure test voltage and electric current in given A phases and C phases
Current voltage amplitude, symmetry, power factor and the self-defined regulation of coupled harmonics composition, then pass through emulation and measured waveform number
Exported according to interface, drive four waveform programmable power supplys；(2) using the live recording of power network.Using oscillograph to power network actual motion
Waveform carries out on-the-spot record, and is inputted by live recording input module, is then connect by emulation and measured waveform data
Mouth output, drives four waveform programmable power supplys；(3) modeling and simulating produces test voltage current waveform, mainly by modeling and simulating mould
Block is completed.Modeling and simulating has two ways, and one kind is emulated using Matlab/Simulink softwares, obtains stoichiometric point
Test voltage current waveform data file, another emulated by StarSim softwares, obtains the test voltage of stoichiometric point
Current waveform data file.Similarly, two kinds of test voltage current waveform data files are connect by emulation and measured waveform data
Mouth output, drives four waveform programmable power supplys.When using modeling and simulating testing program, electric energy metrical operational mode control module
Also need progress is following to be manually entered setting：The exemplary distribution formula electricity such as photovoltaic, wind-powered electricity generation, typical energy storage, diesel-driven generator are built in selection
Source emulation module, and a variety of specific load models such as electric railway and frequency control motor, combination at least eight nodes point
The microgrid that cloth power supply is accessed with load, setting operating condition and environmental change, selection metering node.It is data acquisition module, aobvious
Show that module, power quality analysis module are all based on LabVIEW softwares with emulation and measured waveform data interface module and realize phase
The function of answering.There is data-interface between LabVIEW softwares and Matlab/Simulink softwares and StarSim softwares, therefore can
Easily to carry out the exchange of data file；Data acquisition module obtains related data by corresponding LabVIEW softwares；Emulation
With RS485 driver of the measured waveform data interface module by LabVIEW softwares, realize and four waveform programmable power supplys
Communication；Power quality analysis module can obtain analysis result, example using the ready-made power quality analysis VI of LabVIEW softwares
Such as fundamental frequency, irregularity of wave form, can also dedicated programmed come carry out the quality of power supply calculating analyze.Display module point is multiple
Interface is respectively to electric energy meter error, voltage current transformer error, three-phase simulation and measurement voltage current waveform, related electric energy matter
Amount analysis result etc. is shown.
The present invention can simulate the specified fundamental voltage of three-phase and be up to the specified fundamental current 1000A of 35kV, three-phase, fundamental frequency
Allowed band is the power network electric energy metrical running environment that 45Hz~65Hz and three-phase voltage and three-phase current have distortion phenomenon,
And realize that high-voltage electric energy meter, intelligent electric energy meter, digitalized electrical energy meter, electromagnetic transformer and middle piezoelectricity can be counted in such circumstances
The verification and detection of the metering performance and function of single unit system are measured, voltage x current overtone order is up to 25 times, and 2~15 subharmonic contain
Measure as the 30% of fundamental voltage amplitude, 15~25 subharmonic contents are the 10% of fundamental voltage amplitude, highest detection degree of accuracy voltage transformer
Be 0.2s grades for 0.2 grade, current transformer, the degree of accuracy of transformer individual harmonic current be 0.5 grade, high-voltage electric energy meter or middle pressure
Electric energy metrical single unit system is 1 grade, three-phase electric energy meter is 0.2s grades, three phase harmonic electric energy meter is 1 grade.
The invention has the advantages that：(1) use and the introducing of distributed new of a large amount of nonlinear loads,
So that the power quality problem of modern power network is on the rise, conventional electric energy measuring equipment is under existing Complex Power running environment
Meter characteristic needs verification badly, but the uncertainty of nonlinear load and the diversity of distributed new cause field-checking
The validity of work is substantially reduced, the present invention using the hardware such as test voltage current generation device and electric energy measuring equipment it is in kind with
The semi-physical simulation technology that computer software simulation is combined, solves this check problem well.Computer software can be with
It is any that topological structure of electric, the access of distributed new, the use of nonlinear load are set, it is possible to the electric energy meter of selection
Amount point carries out the sampling of electric current, voltage and electric energy waveform, and meter to be verified is then provided by test voltage current generation device
Measure one scene operation simulated environment of equipment.Metering under the conditions of virtual voltage current waveform thus can be carried out in laboratory
Checked for characteristics.The flexibility of computer software and opening so that the present invention is with extremely strong scene operation simulated environment construction
Ability, this research and development to Electric Energy Metering Technology and equipment is all significant.(2) present invention uses the principle of virtual work pair
Electric energy measuring equipment is verified, due to test current is in into middle pressure condition, is so achieved that measuring equipment in voltage electricity
Flow distorted waveform under the conditions of high pressure integration calibrating, and with the single equipment verifying function of conventional dosing devices calibration equipment
Difference, the present invention can carry out high-voltage electric energy meter, intelligent electric energy meter, digitalized electrical energy meter, electromagnetic transformer and middle piezoelectricity energy
Measure the verification of single unit system.(3) need standard mutual inductor equal with subject mutual inductor ratio with traditional mutual-inductor calibration device
Condition compare, the present invention allows both no-load voltage ratios to be not desired to, therefore reduces the requirement to standard mutual inductor.Transformer error is adopted
Calculated with polar coordinate representation method, more conform to the definition of transformer error, thus it is more accurate.(4) present invention have pair
The power quality analysis and display function of the secondary output signal of test voltage electric current, transformer, therefore can the pressure emulation of centering in real time
Experimental enviroment carries out the quantitative analysis of the quality of power supply.(5) test voltage current generation device uses voltage current waveform program-controlled electric
The mode of pressure booster and current lifting device in the closed-loop control driving of source, it is ensured that the simulation accuracy of middle pressure test voltage and electric current.(6)
Compare the simulation waveform data that recorded field data is produced with modeling and simulating module, the electric energy metrical to actual electric network can be verified
The accuracy of running environment modeling.Tested simultaneously using the modeling and simulating waveform of electric energy metrical running environment, can be with anticipation
Metering performance of the electric energy measuring equipment in following power network.
Brief description of the drawings
Fig. 1 is the structural principle block diagram of the present invention；
Fig. 2 is a kind of structure of the integrated semi-physical simulation control platform of medium voltage network electric energy metrical high pressure of the present invention
Theory diagram；
In figure：1 it is device three-phase working power, 2 be A phase current waveforms programmable power supply, 3 is that pressure current lifting device, 4 are A in A phases
Phase voltage waveform programmable power supply, 5 be pressure booster in A phases, 6 be C phase voltage waveforms programmable power supply, 7 be pressure booster, 8 in C phases
It is C phase current waveforms programmable power supply, 9 be pressure current lifting device in C phases, 10 be A phases standard current transformer, 11 is that A phases are tested electric current
Transformer, 12 be subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system, 13 be A phases standard potential transformer, 14 be A phases
Subject voltage transformer, 15 be C phases be tested voltage transformer, 16 be C phases standard potential transformer, 17 to be that C phases are tested electric current mutual
Sensor, 18 be C phases standard current transformer, 19 be transformer secondary singal connection circuit, 20 be three-phase standard electric energy meter, 21 be
Transformer error calculator, 22 be subject three-phase electric energy meter, 23 be low -voltage Watt -hour meter Error Calculator, 24 be high-voltage electric energy meter miss
Poor calculator, 25 be the integrated semi-physical simulation control platform of medium voltage network electric energy metrical high pressure, 26 be data acquisition module
Block, 27 be electric energy metrical operational mode control module, 28 be modeling and simulating module, 29 be live recording input module, 30 be electricity
Amount waveform and error information module, 31 be display module, 32 be power quality analysis module, 33 be emulation with measured waveform data
Interface module.
Embodiment
With reference to specification drawings and specific embodiments, the invention will be further described.
The integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure proposed by the present invention, embodiment is as schemed
Shown in 1 and Fig. 2, it includes pressure current lifting device 3 in device three-phase working power 1, A phase current waveforms programmable power supply 2, A phases, A phases electricity
Pressure booster 7, C phase current ripples in booster 5, C phase voltage waveforms programmable power supply 6, C phases are pressed in corrugating programmable power supply 4, A phases
Current lifting device 9, A phases standard current transformer 10, A phases is pressed to be tested current transformer 11, subject high-tension electricity in shape programmable power supply 8, C phases
Energy table or middle pressure electric energy metrical single unit system 12, A phases standard potential transformer 13, A phases are tested voltage transformer 14, C phases and are tested
Voltage transformer 15, C phases standard potential transformer 16, C phases are tested current transformer 17, C phases standard current transformer 18, mutual inductance
Device secondary singal connection circuit 19, three-phase standard electric energy meter 20, transformer error calculator 21, subject three-phase electric energy meter 22, low
Press the integrated semi physical of electric energy meter error calculator 23, high-voltage electric energy meter Error Calculator 24 and medium voltage network electric energy metrical high pressure
L-G simulation test control platform 25.
Medium voltage network electric energy metrical high pressure integration semi-physical simulation control platform 25 include data acquisition module 26,
Electric energy metrical operational mode control module 27, modeling and simulating module 28, live recording input module 29, electricity waveform and margin of error
According to module 30, display module 31, power quality analysis module 32 and emulation and measured waveform data interface module 33.
Device three-phase working power 1 is to A phase current waveforms programmable power supply 2, A phase voltage waveforms programmable power supply 4, C phase currents
Waveform programmable power supply 8 and C phase voltage waveforms programmable power supply 6 provide three-phase four-wire system working power, A phase current waveform programmable power supplys
2nd, A phase voltage waveforms programmable power supply 4, C phase current waveforms programmable power supply 8 and C phase voltage waveforms programmable power supply 6 receive come from respectively
Voltage x current emulation and measured waveform data of the emulation with measured waveform data interface module 33, and according to respective Wave data
Booster 7 is pressed in driving A phases in pressure current lifting device 9 and C phases in pressure booster 5, C phases in pressure current lifting device 3, A phases so that A phases respectively
Middle pressure current lifting device 3, in A phases in pressure booster 5, C phases in pressure current lifting device 9 and C phases pressure booster 7 export respectively A phase studies electric current,
A phase studies voltage, C phase studies electric current and C phase study voltages.
An output end of current lifting device 3 is pressed in A phases respectively with pressing an output end of booster 5 in A phases and being tested high pressure
The A phase current inputs of electric energy meter or middle pressure electric energy metrical single unit system 12 are connected, pressed in A phases current lifting device 3 another is defeated
Go out end with the once input Same Name of Ends of A phases standard current transformer 10 to be connected, the once input of A phases standard current transformer 10
The once input Same Name of Ends that non-same polarity is tested current transformer 11 with A phases is connected, and A phases are tested current transformer 11 once
A phase current output end, A phase of the input non-same polarity respectively with subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system 12 are marked
The once input Same Name of Ends of quasi- voltage transformer 13, A phases are tested the once input Same Name of Ends of voltage transformer 14, A phase studies electricity
Pressure output end is connected, and output end, the A of another output end of booster 5 respectively with pressure booster 7 in C phases are pressed in A phases
The once input non-same polarity of phase standard potential transformer 13, A phases are tested once input non-same polarity, the quilt of voltage transformer 14
Try an A phase voltages input of high-voltage electric energy meter or middle pressure electric energy metrical single unit system 12, C phases standard potential transformer 16
Once input non-same polarity, C phases are tested the once input non-same polarity, subject high-voltage electric energy meter or middle piezoelectricity of voltage transformer 15
A C phase voltages input, the B phase study voltage output ends that single unit system 12 can be measured are connected, and current lifting device 9 is pressed in C phases
One output end is respectively with pressing another output end and subject high-voltage electric energy meter or middle pressure electric energy metrical of booster 7 whole in C phases
The C phase current inputs of body device 12 are connected, and another output end and C phase standard current transformers of current lifting device 9 are pressed in C phases
18 once input Same Name of Ends is connected, and it is mutual that once input non-same polarity and the C phases of C phases standard current transformer 18 are tested electric current
The once input Same Name of Ends of sensor 17 is connected, C phases be tested the once input non-same polarity of current transformer 17 respectively with subject
The C phase currents output end of high-voltage electric energy meter or middle pressure electric energy metrical single unit system 12, C phases standard potential transformer 16 it is once defeated
Enter Same Name of Ends, C phases and be tested the once input Same Name of Ends of voltage transformer 15, C phase study voltage output ends to be connected.
A phases standard current transformer 10, A phases are tested current transformer 11, A phases standard potential transformer 13, A phases and are tested electricity
Pressure transformer 14, C phases are tested current transformer 17, C phases standard current transformer 18, C phases and are tested voltage transformer 15 and are marked with C phases
The secondary output port of quasi- voltage transformer 16 connects corresponding input port phase on circuit 19 with transformer secondary singal respectively
Connection, transformer secondary singal connection circuit 19 marks A phases standard current transformer 10, A phases standard potential transformer 13, C phases
Quasi- current transformer 18, the secondary singal of C phases standard potential transformer 16 are supplied to three-phase standard electric energy meter 20, and transformer is secondary
Signal, which connects circuit 19 and A phases are tested into current transformer 11, A phases are tested voltage transformer 14, C phases, is tested current transformer 17, C
Mutually the secondary singal of subject voltage transformer 15 is supplied to subject three-phase electric energy meter 22, and transformer secondary singal connection circuit 19 will
The secondary singal of all transformers is supplied to transformer error calculator 21, and low -voltage Watt -hour meter Error Calculator 23 receives three simultaneously
The output signal of phase standard electric energy meter 20 and subject three-phase electric energy meter 22, high-voltage electric energy meter Error Calculator 24 receives three-phase simultaneously
The output signal of standard electric energy meter 20 and subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system 12, medium voltage network electric energy meter
The data acquisition module 26 for measuring the integrated semi-physical simulation control platform 25 of high pressure receives three-phase standard electric energy meter 20, mutual inductance
Device Error Calculator 21, low -voltage Watt -hour meter Error Calculator 23, high-voltage electric energy meter Error Calculator 34 and from transformer two
The secondary singal of all transformers of secondary signal connection circuit 19.
Modeling and simulating module 28 receives the controlling test information that electric energy metrical operational mode control module 27 sends and carried out
Modeling and simulating, so as to produce the electric current and voltage operation simulation waveform data of medium voltage network stoichiometric point.Electricity waveform and margin of error
Collected according to module 33 from data acquisition module 26, modeling and simulating module 28, the information of live recording input module 29, and by phase
Electric current and voltage operation simulation waveform data, the secondary singal data of all transformers, the various error informations answered are sent to aobvious
Show that module 31 is shown in real time, at the same by electric current and voltage run simulation waveform data, all transformers secondary singal number
Power quality analysis is carried out according to power quality analysis module 32 is sent to, analysis result is shown by display module 31, most
Electric current and voltage are run into simulation waveform data, A phases standard current transformer 10, A phases standard potential transformer 13, C phases afterwards to mark
Quasi- current transformer 18, the secondary singal of C phases standard potential transformer 16 are sent to emulation and measured waveform data interface module
33。
The present embodiment specific design parameter is：
The present invention can build three-phase test voltage and three-phase test electric current has the power network electric energy metrical fortune of distortion phenomenon
Row environment, realizes high-voltage electric energy meter, intelligent electric energy meter, digitalized electrical energy meter, electromagnetic transformer and middle pressure in such circumstances
The verification and detection of the metering performance and function of electric energy metrical single unit system.Device three-phase working power is three-phase 380V/50Hz
Pressed in conventional electron power supply, A phases during the specified fundamental wave test voltage that pressure booster 7 is exported in booster 5 and C phases is 10kV, A phases
Press pressure current lifting device 9 is exported in current lifting device 3 and C phases specified fundamental wave test current 600A, three-phase test voltage and three-phase test electricity
The fundamental frequency of stream is 50Hz, and the overtone order of test voltage and test current is up to 25 times, and 2~15 subharmonic contents are fundamental wave
The 30% of amplitude, 15~25 subharmonic contents are 10%, the A phase current waveforms programmable power supply 2 and C phase current waveforms of fundamental voltage amplitude
The output capacity of programmable power supply 8 is respectively 5kVA, A phase voltage waveforms programmable power supply 4 and C phase voltage waveforms programmable power supply 6 it is defeated
Go out capacity respectively 1.5kVA, the operating voltage of A phases standard current transformer 10 and C phases standard current transformer 18 is 10kV,
Rated frequency be 50Hz, nominal transformation ratio be 600A/5A, the fundamental wave degree of accuracy be 0.05s grades, the degree of accuracy of 2~25 subharmonic be 0.2
Level, the operating voltage that A phases are tested current transformer 11 with C phases are tested current transformer 17 is that 10kV, rated frequency are 50Hz, volume
Rated transformation ratio be 600A/5A, the fundamental wave degree of accuracy be 0.2s grades, the degree of accuracy of 2~25 subharmonic be 0.5 grade, A phase normal voltage mutual inductances
The rated voltage of device 13 and C phases standard potential transformer 16 be 10kV, rated frequency be 50Hz, nominal transformation ratio be 10kV/100V,
The fundamental wave degree of accuracy is 0.05 grade, the degree of accuracy of 2~25 subharmonic is 0.2 grade, and A phases are tested voltage transformer 14 and are tested electricity with C phases
The rated voltage of pressure transformer 15 is that 10kV, rated frequency are that 50Hz, nominal transformation ratio are that 10kV/100V, the fundamental wave degree of accuracy are 0.2
Level, the degree of accuracy of 2~25 subharmonic are 0.5 grade, the specified electricity of subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system 12
Pressure is that 10kV, rated frequency are that 50Hz, rated current are that 600A, the degree of accuracy are 1 grade, and the degree of accuracy of three-phase standard electric energy meter 20 is
0.05 grade, the degree of accuracy of subject three-phase electric energy meter 22 is 0.2s grades.Transformer error calculator 21 has 16, eight tunnel 250kS/s's
Analog high-speed synchronous data acquiring circuit, data acquisition module 26 is same except the analog high speed with 16, eight tunnel 250kS/s
Outside step data Acquisition Circuit, also with reception three-phase standard electric energy meter 20, transformer error calculator 21, low-voltage electric energy Watch Error
The circuit of calculator 23, the output signal of high-voltage electric energy meter Error Calculator 24.The medium voltage network under the operating systems of Windows 7
Modeling and simulating module 28 in electric energy metrical high pressure integration semi-physical simulation control platform 25 uses Matlab/
Simulink simulation softwares and StarSim softwares, support the microgrid of 8 nodes to calculate.Each node contains distributed power source and spy
Different load.Display module 31, power quality analysis module 32 and emulation and the function of measured waveform data interface module 33 pass through
LabVIEW real-time simulations software realizes that simulation waveform data file is using lattice such as * .csv, * .tdms, * .mat in ASCII
Formula, electricity waveform and error information module 30 use MS ACCESS databases, the file function reading carried using LabView
Realize the read-write of shared data.Electric energy metrical operational mode control module 27 provides good man-machine interaction in a modular fashion
Interface, facilitates the various software emulations behaviour in the integrated semi-physical simulation control platform 25 of medium voltage network electric energy metrical high pressure
Make and hardware setting, support the soft of each functional module of semi-physical simulation device integrated with medium voltage network electric energy metrical high pressure
Part program interaction call with device remote control function, realize the reproduction of Operation of Electric Systems scene, support any stoichiometric point
Choose.Power quality analysis module 32 can analyze stoichiometric point electrical quantity and the quality of power supply characteristic of electric energy measuring equipment.
In addition, apparatus of the present invention meet GB/T 11150-2001《Calibrator for watt-hour meter》、JJG 597-2005《Exchange
Electric energy meter calibrating apparatus vertification regulation》、JJG 1036-1993《AC electrical energy meter calibration test specification》、DL/T 585-
1995《Electronic type standard electric energy meter technical conditions》、DL/T 460-1992《Electric energy meter calibrating apparatus vertification regulation》、DL/T
731-2000《Electric energy meter measurement Error Calculator》、JJG 596-2012《Electronic electric energy meter vertification regulation》、DL460-
2005《Electric energy meter calibrating apparatus vertification regulation》、JG307-2006《AC energy meter vertification regulation》、DL/T614-2007《Many work(
Can electric energy meter》、DL/T645-2007《Multi -function watt -hour meter communication protocol》Deng country and professional standard and related measurement verification
The requirement of code.
The content not being described in detail in description of the invention belongs to the known technology of those skilled in the art.
It is to be understood that：Above-described embodiment is the description of the invention, rather than limitation of the present invention, any
Without departing from the innovation and creation in the range of true spirit, each fall within protection scope of the present invention.
Claims (10)
1. medium voltage network electric energy metrical high pressure integration semi-physical simulation device, it is characterised in that including device three-phase work
Make power supply (1), A phases standard current transformer (10), A phases standard potential transformer (13), C phases standard current transformer (18), C
Phase standard potential transformer (16), transformer secondary singal connection circuit (19), three-phase standard electric energy meter (20), transformer error
Calculator (21), subject three-phase electric energy meter (22), low -voltage Watt -hour meter Error Calculator (23), high-voltage electric energy meter Error Calculator
And the integrated semi-physical simulation control platform (25) of medium voltage network electric energy metrical high pressure (24)；
The integrated semi-physical simulation control platform (25) of described medium voltage network electric energy metrical high pressure includes data acquisition module
Block (26), electric energy metrical operational mode control module (27), modeling and simulating module (28), live recording input module (29), electricity
Measure waveform and error information module (30, display module (31), power quality analysis module (32) and emulation and measured waveform data
Interface module (33)；
Described data acquisition module receives three-phase standard electric energy meter, transformer error calculator, low -voltage Watt -hour meter error calculation
The secondary singal of device, high-voltage electric energy meter Error Calculator and all transformers from transformer secondary singal connection circuit；
Modeling and simulating module receives the control information that sends of electric energy metrical operational mode control module and carries out modeling and simulating, so as to produce
Electric current and voltage the operation simulation waveform data of medium voltage network stoichiometric point；Electricity waveform and error information module collection come from data
The information of acquisition module, modeling and simulating module and live recording input module, and corresponding electric current and voltage operation are emulated into ripple
Graphic data, the secondary singal data of all transformers, various error informations are sent to display module and shown in real time, simultaneously will
Electric current and voltage operation simulation waveform data, the secondary singal data of all transformers are sent to the progress of power quality analysis module
Power quality analysis, analysis result is shown by display module, and electric current and voltage are run into simulation waveform data, A
Phase standard current transformer, A phases standard potential transformer, C phases standard current transformer, C phase standard potential transformers it is secondary
Signal is sent to emulation and measured waveform data interface module.
2. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 1, its feature
It is, in addition to current lifting device (3), A phase voltage waveforms programmable power supply (4), A phases is pressed in A phase current waveforms programmable power supply (2), A phases
Middle pressure booster (5), C phase current waveforms programmable power supply (8), pressure current lifting device (9) in C phases, C phase voltage waveforms programmable power supply (6),
Booster (7), A phases is pressed to be tested current transformer (11), subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system in C phases
(12), A phases are tested voltage transformer (14), C phases and are tested current transformer (17) is tested voltage transformer (15) with C phases.
3. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 2, its feature
It is, described subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system include A phases metering units and C phase metering units.
4. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 2, its feature
It is,
Described device three-phase working power is to A phase current waveforms programmable power supply, A phase voltage waveforms programmable power supply, C phase current ripples
Shape programmable power supply and C phase voltage waveforms programmable power supply provide three-phase four-wire system working power, A phase current waveforms programmable power supply, A phases
Voltage waveform programmable power supply, C phase current waveforms programmable power supply and C phase voltage waveforms programmable power supply are received respectively comes from emulation and real
Voltage x current emulation and the measured waveform data of Wave data interface module are surveyed, and A is driven according to respective Wave data respectively
Pressed in phase in current lifting device, A phases and press booster in pressure current lifting device and C phases in pressure booster, C phases so that current lifting device, A phases are pressed in A phases
Middle pressure booster, pressure booster exports A phase studies electric current, A phase studies voltage, C phases and tried respectively in pressure current lifting device and C phases in C phases
Galvanoscope and C phase study voltages.
5. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 4, its feature
It is,
A phases standard current transformer, A phases are tested current transformer, A phases standard potential transformer, A phases and are tested voltage transformer, C
Mutually subject current transformer, C phases standard current transformer, C phases are tested the secondary of voltage transformer and C phase standard potential transformers
Output port is connected with corresponding input port on transformer secondary singal connection circuit respectively, the connection of transformer secondary singal
Circuit is by A phases standard current transformer, A phases standard potential transformer, C phases standard current transformer, C phase standard potential transformers
Secondary singal be supplied to three-phase standard electric energy meter, A phases are tested current transformer, A phases by transformer secondary singal connection circuit
Subject voltage transformer, C phases, which are tested current transformer, C phases and are tested the secondary singal of voltage transformer, is supplied to subject three-phase electricity
The secondary singal of all transformers is supplied to transformer error calculator, low pressure by energy table, transformer secondary singal connection circuit
Electric energy meter error calculator receives the output signal of three-phase standard electric energy meter and subject three-phase electric energy meter simultaneously, and high-voltage electric energy meter is missed
Poor calculator receives the output letter of three-phase standard electric energy meter and subject high-voltage electric energy meter or middle pressure electric energy metrical single unit system simultaneously
Number.
6. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 4, its feature
It is,
For A phase current waveform programmable power supplys, it is by comparing A phase current simulation waveform data and A phase standard current transformers
Secondary singal data in A phases press current lifting device output A phase studies electric current carry out closed-loop control so that A phase study current waves
Shape is tried one's best close to the requirement of A phase current simulation waveform data, is pressed for being pressed in A phases in booster, C phases in pressure current lifting device and C phases
Booster, also carries out identical closed-loop control.
7. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 4, its feature
It is,
A phase current waveforms programmable power supply, A phase voltage waveforms programmable power supply, C phase current waveforms programmable power supply and C phase voltage waveforms
The fundamental wave of the electricity waveform of programmable power supply output is identical, fundamental wave value in the range of setting.
8. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 4, its feature
It is,
For the selection of mutual inductor ratio, it is desirable to A phases standard current transformer and C phases standard current transformer, A phase normal voltages
Transformer and C phases standard potential transformer, A phases are tested current transformer and C phases are tested current transformer, that A phases are tested voltage is mutual
Sensor is identical with the no-load voltage ratio that C phases are tested voltage transformer, but is not required for standard current transformer and subject current transformer
No-load voltage ratio is equal, does not also require that standard potential transformer is equal with the no-load voltage ratio for being tested voltage transformer.
9. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 4, its feature
It is,
Transformer secondary singal connects circuit by A phases standard potential transformer and two secondary letters of C phase standard potential transformers
Number output port connects into phase three-wire three port, and is connected with the three-phase voltage input port of three-phase standard electric energy meter, mutual inductance
A phases are tested two secondary singal output ends that voltage transformer is tested voltage transformer with C phases by device secondary singal connection circuit
Mouth connects into phase three-wire three port, and is connected with the three-phase voltage input port for being tested three-phase electric energy meter.Transformer error meter
The secondary output signal that device receives all transformers is calculated, the harmonious wavelength-division of fundamental wave for then calculating each signal using fourier-transform
Amount, and the polar coordinate representation method defined by transformer error carries out the verification of each subject transformer fundamental wave harmonic degree of accuracy.
10. the integrated semi-physical simulation device of medium voltage network electric energy metrical high pressure according to claim 4, its feature
It is,
Described data acquisition module is except collection three-phase standard electric energy meter, low -voltage Watt -hour meter Error Calculator and high-voltage electric energy meter
Outside the output information of Error Calculator, the secondary singal of all transformers is also collected and from the every of transformer error calculator
The harmonious wave component of the fundamental wave of the individual secondary output signal of transformer, the secondary output information of these transformers and its harmonious wave component of fundamental wave
Information gives power quality analysis module by electricity waveform and error information module transfer.
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Address after: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane Patentee after: STATE GRID ZHEJIANG ELECTRIC POWER COMPANY LIMITED ELECTRIC POWER Research Institute Patentee after: ZHEJIANG HARNPU POWER TECHNOLOGY Co.,Ltd. Patentee after: STATE GRID ZHEJIANG ELECTRIC POWER Co.,Ltd. Address before: The eight district of Hangzhou city in Zhejiang province 310014 Huadian Zhaohui under No. 1 Lane Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID ZHEJIANG ELECTRIC POWER Co. Patentee before: ZHEJIANG HARNPU POWER TECHNOLOGY Co.,Ltd. Patentee before: STATE GRID ZHEJIANG ELECTRIC POWER Co. |
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