CN107219492B - Medium voltage network electrical energy measurement high pressure integration semi-physical simulation device - Google Patents
Medium voltage network electrical energy measurement high pressure integration semi-physical simulation device Download PDFInfo
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- CN107219492B CN107219492B CN201710269675.XA CN201710269675A CN107219492B CN 107219492 B CN107219492 B CN 107219492B CN 201710269675 A CN201710269675 A CN 201710269675A CN 107219492 B CN107219492 B CN 107219492B
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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
Abstract
The invention discloses a kind of medium voltage network electrical energy measurement high pressure integration semi-physical simulation devices.The standard criterion of existing electric energy measuring equipment has been unable to satisfy for the adaptability check requirements under emerging complex electric network running environment.The present invention includes mutual inductor secondary singal connection circuit, transformer error calculator, low -voltage Watt -hour meter Error Calculator, high-voltage electric energy meter Error Calculator and medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform；The medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform includes data acquisition module, electrical energy measurement 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 construct that there are the medium voltage network electrical energy measurement scenes of power quality problem to run simulated environment, 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 electrical energy measurement high pressures one
Body semi-physical simulation device.
Background technique
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 electrical energy measurement 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
Electrical energy measurement single unit system etc., meter characteristic and work of these electric energy measuring equipments under existing complex electric network running environment can
It needs to verify 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
To the ability and Shortcomings that electric energy measuring equipment is verified under complex electric network running environment.
On the other hand, the standard criterion of existing electric energy measuring equipment, more particularly to quality control, detection project and inspection
The content of survey method etc. has been unable to satisfy for the adaptability check requirements under emerging complex electric network running environment.
Therefore, it is quite necessary to which complex electric network running environment can easily be reproduced and carry out electric energy measuring equipment school in such circumstances by building
The device tested, such device facilitate the quality control, detection method improvement, failure regression analysis, meter of electric energy measuring equipment
Measure the exploration and application of new principle method and new equipment.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the problems of the above-mentioned prior art, a kind of medium voltage network is provided
Electrical energy measurement high pressure integration semi-physical simulation device can propose be for experiment piezoelectricity pressure and three-phase electricity in three-phase simultaneously
Stream, three-phase current are in middle pressure condition, so that there are the operation of the medium voltage network electrical energy measurement scene of power quality problem is imitative for building
True environment, and in such circumstances realize 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 electrical energy measurement single unit system.
For this purpose, the present invention adopts the following technical scheme that: medium voltage network electrical energy measurement high pressure integration semi-physical simulation examination
Experiment device, including device three-phase working power, A phase standard current transformer, A phase standard potential transformer, C phase normalized current are mutual
Sensor, C phase standard potential transformer, mutual inductor secondary singal connection circuit, three-phase standard electric energy meter, transformer error calculate
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 electrical energy measurement
High pressure integration semi-physical simulation control platform；
The medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform includes data acquisition module
Block, electrical energy measurement 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 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 mutual inductors from mutual inductor secondary singal connection circuit
Number；Modeling and simulating module receives the control information that electrical energy measurement operational mode control module issues and carries out modeling and simulating, thus
The electric current and voltage for generating medium voltage network stoichiometric point run simulation waveform data；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 are run and imitated
True Wave data, the secondary singal data of all mutual inductors, various error informations are sent to display module and carry out real-time display, together
When electric current and voltage operation simulation waveform data, the secondary singal data of all mutual inductors be 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 simulation waveform number
According to, A phase standard current transformer, A phase standard potential transformer, C phase standard current transformer, C phase standard potential transformer
Secondary singal is sent to emulation and measured waveform data interface module.
The present invention is directed to medium voltage network system, utilizes the hardware such as test voltage current generation device and electric energy measuring equipment reality
The semi-physical simulation technology that object is combined with computer software simulation technology, constructs the simulation test apparatus of electric energy measuring equipment.
The present invention freely constructs virtual operation of power networks by setting topological structure of electric, distributed new and nonlinear load
Environment carries out electricity waveform sampling to metering points of electric energy, and reproduces actual operation by test voltage current generation device and imitate
True environment.Test current is in middle pressure condition and carries out high pressure integration to electric energy measuring equipment using the principle of virtual work by the present invention
Verification, transformer error are 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 is able to satisfy high voltage electric energy simultaneously
The verification of table, intelligent electric energy meter, digitalized electrical energy meter, electromagnetic transformer and middle pressure electrical energy measurement 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 are " multi-functional
Electric energy meter communication protocol " etc. national standards, professional standard and measurement verification regulations requirement.Such medium voltage network electrical energy measurement
High pressure integration semi-physical simulation device there are no patent and document report.
Further, the invention also includes current lifting device, A phase voltage waveform journey are pressed in A phase current waveform programmable power supply, A phase
Power supply is controlled, booster, C phase current waveform programmable power supply are pressed in A phase, presses current lifting device, C phase voltage waveform programmable power supply, C in C phase
It presses booster, A phase to be tested current transformer, subject high-voltage electric energy meter or middle pressure electrical energy measurement single unit system, A phase in phase and is tested electricity
Pressure mutual inductor, C phase are tested current transformer and are tested voltage transformer with C phase.
Further, the subject high-voltage electric energy meter or middle pressure electrical energy measurement single unit system include A phase metering units and C
Phase metering units.
Further, the device three-phase working power is program-controlled to A phase current waveform programmable power supply, A phase voltage waveform
Power supply, C phase current waveform programmable power supply and C phase voltage waveform programmable power supply provide three-phase four-wire system working power, A phase current wave
Shape programmable power supply, A phase voltage waveform programmable power supply, C phase current waveform programmable power supply and C phase voltage waveform programmable power supply connect respectively
The voltage and current emulation and measured waveform data from emulation with measured waveform data interface module are received, and according to respective waveform
Data, which respectively drive, presses current lifting device, booster is pressed in A phase, presses in current lifting device and C phase in C phase and presses booster in A phase, so that A phase
Booster is pressed in middle pressure current lifting device, A phase, presses pressure booster in current lifting device and C phase to export A phase study electric current, A phase respectively in C phase
Test voltage, C phase study electric current and C phase study voltage.
Further, A phase standard current transformer, A phase are tested current transformer, A phase standard potential transformer, A phase quilt
Examination voltage transformer, C phase are tested current transformer, C phase standard current transformer, C phase and are tested voltage transformer and C phase standard electric
The secondary output port of mutual inductor is pressed to be connected respectively with corresponding input port on mutual inductor secondary singal connection circuit, mutual inductance
Device secondary singal connects circuit for A phase standard current transformer, A phase standard potential transformer, C phase standard current transformer, C phase
The secondary singal of standard potential transformer is supplied to three-phase standard electric energy meter, and A phase is tested by mutual inductor secondary singal connection circuit
Current transformer, A phase are tested voltage transformer, C phase is tested current transformer, C phase is tested the secondary singal of voltage transformer and mentions
Supply subject three-phase electric energy meter, mutual inductor secondary singal connect circuit and the secondary singal of all mutual inductors are supplied to mutual inductor mistake
Poor calculator, low -voltage Watt -hour meter Error Calculator receive three-phase standard electric energy meter and the output letter for being tested 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 electrical energy measurement is whole
The output signal of body device.
Further, for A phase current waveform programmable power supply, it is marked by comparing A phase current simulation waveform data with A phase
The secondary singal data of quasi- current transformer carry out closed-loop control to the A phase study electric current for pressing current lifting device output in A phase, so that A
Phase study current waveform flows up as far as possible close to the requirement of A phase current simulation waveform data for pressing booster in A phase, pressing in C phase
Booster is pressed in device and C phase, also carries out identical closed-loop control.
Further, A phase current waveform programmable power supply, A phase voltage waveform programmable power supply, C phase current waveform programmable power supply,
It is identical with the fundamental wave of electricity waveform of C phase voltage waveform programmable power supply output, fundamental wave one value in the range of setting.
Further, for the selection of mutual inductor ratio, it is desirable that A phase standard current transformer and C phase normalized current mutual inductance
Device, A phase standard potential transformer and C phase standard potential transformer, A phase are tested current transformer and C phase be tested current transformer,
It is identical as the no-load voltage ratio that C phase is tested voltage transformer that A phase is tested voltage transformer, but is not required for standard current transformer and subject
The no-load voltage ratio of current transformer is equal, does not also require standard potential transformer equal with the subject no-load voltage ratio of voltage transformer.
Further, mutual inductor secondary singal connects circuit for A phase standard potential transformer and C phase standard potential transformer
Two secondary singal output ports connect into phase three-wire three port, and the three-phase voltage input port with three-phase standard electric energy meter
Be connected, mutual inductor secondary singal connect circuit by A phase be tested voltage transformer with C phase is tested voltage transformer two it is secondary
Signal output port connects into phase three-wire three port, and is connected with the three-phase voltage input port of subject three-phase electric energy meter.Mutually
Sensor Error Calculator receives the secondary output signal of all mutual inductors, and the fundamental wave of each signal is then calculated using fourier-transform
And harmonic component, and each subject mutual inductor fundamental wave and harmonic wave accuracy are carried out by polar coordinate representation method that transformer error defines
Verification.
Further, data acquisition module is in addition to acquisition 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 mutual inductors is also collected and from transformer error meter
Calculate the fundamental wave and harmonic component of the secondary output signal of each mutual inductor of device, the secondary output information of these mutual inductors 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 power quality
National standard carries out the qualitative and quantitative analysis of various power quality problems.
Testing program of the invention can carry out that selection is manually entered by electrical energy measurement operational mode control module, test
There are mainly three types of schemes: (1) specifying test voltage current waveform.Support the electricity that test voltage and electric current are pressed in given A phase and C phase
Then current voltage amplitude, symmetry, power factor and the customized adjusting of coupled harmonics ingredient pass through emulation and measured waveform number
It is exported according to interface, drives four waveform programmable power supplys；(2) power grid scene recording is used.Using oscillograph to power grid 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 generates test voltage current waveform, mainly by modeling and simulating mould
Block is completed.Mode that there are two types of modeling and simulatings obtains stoichiometric point one is being emulated using Matlab/Simulink software
Test voltage current waveform data file, another kind are emulated by StarSim software, and the test voltage of stoichiometric point is obtained
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, electrical energy measurement operational mode control module
Also need progress is following setting is manually entered: the exemplary distributions formula electricity such as photovoltaic, wind-powered electricity generation, typical energy storage, diesel-driven generator is built in selection
A variety of specific load models such as source emulation module and electric railway and frequency control motor, combination at least eight nodes point
The microgrid of cloth power supply and load access sets operating condition and environmental change, selection metering node.Data acquisition module is shown
Show that module, power quality analysis module and emulation and measured waveform data interface module are all based on LabVIEW software realization phase
The function of answering.There is data-interface between LabVIEW software and Matlab/Simulink software and StarSim software, therefore can
Easily to carry out the exchange of data file；Data acquisition module obtains related data by corresponding LabVIEW software；Emulation
With measured waveform data interface module by the RS485 driver of LabVIEW software, realize and four waveform programmable power supplys
Communication；Power quality analysis module can use the ready-made power quality analysis VI of LabVIEW software to be analyzed as a result, example
Such as fundamental frequency, irregularity of wave form can also carry out the calculating analysis of power quality with dedicated programmed.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 45Hz~65Hz and three-phase voltage and three-phase current there are the power grid electrical energy measurement running environment of 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 and current overtone order is up to 25 times, and 2~15 subharmonic contain
Amount is the 30% of fundamental voltage amplitude, and 15~25 subharmonic contents are the 10% of fundamental voltage amplitude, highest detection accuracy voltage transformer
For 0.2 grade, current transformer be 0.2s grades, the accuracy of mutual inductor individual harmonic current is 0.5 grade, high-voltage electric energy meter or middle pressure
Electrical energy measurement 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 of a large amount of nonlinear loads and the introducing of distributed new,
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 to verify, but the uncertainty of nonlinear load and the diversity of distributed new make field-checking
The validity of work substantially reduces, the present invention using the hardware material object such as test voltage current generation device and electric energy measuring equipment with
Computer software simulates the semi-physical simulation technology combined, has well solved this check problem.Computer software can be with
Any setting topological structure of electric, the access of distributed new, the use of nonlinear load, and can be 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.Thus can laboratory carry out virtual voltage current waveform under the conditions of metering
Checked for characteristics.The flexibility and opening of computer software, so that the present invention has extremely strong scene operation simulated environment construction
Ability, this is all of great significance to the research and development of Electric Energy Metering Technology and equipment.(2) present invention uses the principle of virtual work pair
Electric energy measuring equipment is verified, and since test current is in middle pressure condition, thereby realizes measuring equipment in voltage electricity
Flow the high pressure integration calibrating under the conditions of distorted waveform, and the single equipment verifying function with conventional dosing devices calibration equipment
Difference, the present invention can be carried 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 tradition mutual-inductor calibration device
Condition compare, both the present invention allows, and no-load voltage ratio is not desired to, therefore reduces the requirement to standard mutual inductor.Transformer error is adopted
It is calculated with polar coordinate representation method, is more in line with the definition of transformer error, therefore more accurate.(4) present invention have pair
The power quality analysis and display function of the secondary output signal of test voltage electric current, mutual inductor, therefore can the pressure emulation of centering in real time
The quantitative analysis of experimental enviroment progress power quality.(5) test voltage current generation device uses voltage current waveform program-controlled electric
The mode that booster and current lifting device are pressed in source closed-loop control driving ensure that the simulation accuracy of middle pressure test voltage and electric current.(6)
The simulation waveform data for comparing recorded field data and the generation of modeling and simulating module, can verify the electrical energy measurement to actual electric network
The accuracy of running environment modeling.It is tested, can be prejudged using the modeling and simulating waveform of electrical energy measurement running environment simultaneously
Metering performance of the electric energy measuring equipment in the following power grid.
Detailed description of the invention
Fig. 1 is structural principle block diagram of the invention；
Fig. 2 is a kind of structure of medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform of the present invention
Functional block diagram；
In figure: 1 be device three-phase working power, 2 be A phase current waveform programmable power supply, 3 be current lifting device is pressed in A phase, 4 be A
Phase voltage waveform programmable power supply, 5 be in A phase press booster, 6 be C phase voltage waveform programmable power supply, 7 be in C phase pressure booster, 8
Be C phase current waveform programmable power supply, 9 be pressed in C phase current lifting device, 10 be A phase standard current transformer, 11 be that A phase is tested electric current
Mutual inductor, 12 be subject high-voltage electric energy meter or middle pressure electrical energy measurement single unit system, 13 be A phase standard potential transformer, 14 be A phase
Subject voltage transformer, 15 be C phase be tested voltage transformer, 16 be C phase standard potential transformer, 17 to be that C phase is tested electric current mutual
Sensor, 18 be C phase standard current transformer, 19 be mutual inductor 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 medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform, 26 be data acquisition module
Block, 27 be electrical energy measurement 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.
Specific embodiment
The invention will be further described with specific embodiment with reference to the accompanying drawings of the specification.
Medium voltage network electrical energy measurement high pressure integration semi-physical simulation device proposed by the present invention, embodiment is as schemed
Shown in 1 and Fig. 2, it includes device three-phase working power 1, A phase current waveform programmable power supply 2, presses current lifting device 3, A phase electric in A phase
Booster 5, C phase voltage waveform programmable power supply 6 are pressed in corrugating programmable power supply 4, A phase, booster 7, C phase current wave are pressed in C phase
Current lifting device 9, A phase standard current transformer 10, A phase is pressed to be tested current transformer 11, subject high-voltage electricity in shape programmable power supply 8, C phase
It can table or middle pressure electrical energy measurement single unit system 12, A phase standard potential transformer 13, A phase are tested voltage transformer 14, C phase is tested
Voltage transformer 15, C phase standard potential transformer 16, C phase are tested current transformer 17, C phase standard current transformer 18, mutual inductance
Device secondary singal connects circuit 19, three-phase standard electric energy meter 20, transformer error calculator 21, is tested three-phase electric energy meter 22, is low
Press electric energy meter error calculator 23, high-voltage electric energy meter Error Calculator 24 and medium voltage network electrical energy measurement high pressure integration semi physical
L-G simulation test control platform 25.
Medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform 25 include data acquisition module 26,
Electrical energy measurement 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 waveform programmable power supply 2, A phase voltage waveform programmable power supply 4, C phase current
Waveform programmable power supply 8 and C phase voltage waveform programmable power supply 6 provide three-phase four-wire system working power, A phase current waveform programmable power supply
2, A phase voltage waveform programmable power supply 4, C phase current waveform programmable power supply 8 and C phase voltage waveform programmable power supply 6 receive come from respectively
Voltage and current emulation and measured waveform data of the emulation with measured waveform data interface module 33, and according to respective Wave data
It respectively drives and presses current lifting device 3 in A phase, booster 5 is pressed in A phase, presses in C phase and presses booster 7 in current lifting device 9 and C phase, so that A phase
Booster 5 is pressed in middle pressure current lifting device 3, A phase, press in C phase in current lifting device 9 and C phase pressure booster 7 export respectively A phase study electric current,
A phase study voltage, C phase study electric current and C phase study voltage.
In A phase press current lifting device 3 an output end respectively in A phase press booster 5 an output end and be tested high pressure
The A phase current input terminal of electric energy meter or middle pressure electrical energy measurement single unit system 12 is connected, pressed in A phase current lifting device 3 another is defeated
Outlet is connected with the primary input Same Name of Ends of A phase standard current transformer 10, the primary input of A phase standard current transformer 10
Non-same polarity is connected with the primary input Same Name of Ends that A phase is tested current transformer 11, and A phase is tested the primary of current transformer 11
Input non-same polarity is marked with the A phase current output end of subject high-voltage electric energy meter or middle pressure electrical energy measurement single unit system 12, A phase respectively
The primary input Same Name of Ends of quasi- voltage transformer 13, A phase are tested the primary input Same Name of Ends of voltage transformer 14, A phase study electricity
Pressure output end be connected, in A phase press booster 5 another output respectively in C phase press booster 7 output end, an A
The primary input non-same polarity of phase standard potential transformer 13, A phase are tested primary input non-same polarity, the quilt of voltage transformer 14
Try high-voltage electric energy meter or middle pressure one A phase voltage input terminal of electrical energy measurement single unit system 12, C phase standard potential transformer 16
Primary input non-same polarity, C phase are tested the primary input non-same polarity, subject high-voltage electric energy meter or middle piezoelectricity of voltage transformer 15
A C phase voltage input terminal, the B phase study voltage output end that single unit system 12 can be measured are connected, and current lifting device 9 is pressed in C phase
One output end is whole with the another output and subject high-voltage electric energy meter of pressing booster 7 in C phase or middle pressure electrical energy measurement respectively
The C phase current input terminal of body device 12 is connected, and the another output and C phase standard current transformer of current lifting device 9 are pressed in C phase
18 primary input Same Name of Ends is connected, and it is mutual that primary input non-same polarity and the C phase of C phase standard current transformer 18 are tested electric current
The primary input Same Name of Ends of sensor 17 is connected, C phase be tested the primary input non-same polarity of current transformer 17 respectively with subject
High-voltage electric energy meter or the middle pressure C phase current output end of electrical energy measurement single unit system 12, C phase standard potential transformer 16 it is primary defeated
Enter Same Name of Ends, C phase is tested the primary input Same Name of Ends of voltage transformer 15, C phase study voltage output end is connected.
A phase standard current transformer 10, A phase are tested current transformer 11, A phase standard potential transformer 13, A phase and are tested electricity
Pressure mutual inductor 14, C phase are tested current transformer 17, C phase standard current transformer 18, C phase and are tested voltage transformer 15 and mark with C phase
The secondary output port of quasi- voltage transformer 16 connects corresponding input port phase on circuit 19 with mutual inductor secondary singal respectively
Connection, mutual inductor secondary singal connection circuit 19 mark A phase standard current transformer 10, A phase standard potential transformer 13, C phase
Quasi- current transformer 18, C phase standard potential transformer 16 secondary singal be supplied to three-phase standard electric energy meter 20, mutual inductor is secondary
A phase is tested current transformer 11 by signal connection circuit 19, A phase is tested voltage transformer 14, C phase 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 mutual inductor secondary singal connects circuit 19 will
The secondary singal of all mutual inductors 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 receive three-phase simultaneously
The output signal of standard electric energy meter 20 and subject high-voltage electric energy meter or middle pressure electrical energy measurement single unit system 12, medium voltage network electric energy meter
The data acquisition module 26 for measuring high pressure integration semi-physical simulation control platform 25 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 come from mutual inductor two
The secondary singal of all mutual inductors of secondary signal connection circuit 19.
Modeling and simulating module 28 receives the controlling test information that electrical energy measurement operational mode control module 27 issues and carries out
Modeling and simulating, to generate the electric current and voltage operation simulation waveform data of medium voltage network stoichiometric point.Electricity waveform and margin of error
It collects 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 mutual inductors, the various error informations answered are sent to aobvious
Show that module 31 carries out real-time display, while electric current and voltage being run to the secondary singal number of simulation waveform data, all mutual inductors
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 operation simulation waveform data, A phase standard current transformer 10, A phase standard potential transformer 13, C phase are marked afterwards
Quasi- current transformer 18, C phase standard potential transformer 16 secondary singal be sent to emulation and measured waveform data interface module
33。
The specific design parameter of the present embodiment are as follows:
The present invention can construct three-phase test voltage and three-phase test electric current, and there are the power grid electrical energy measurement of distortion phenomenon fortune
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 electrical energy measurement single unit system.Device three-phase working power is three-phase 380V/50Hz
Conventional electron power supply, it is 10kV that the specified fundamental wave test voltage that pressure booster 7 exports in booster 5 and C phase is pressed in A phase, in A phase
Press the specified fundamental wave test current 600A that pressure current lifting device 9 exports in current lifting device 3 and C phase, 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 waveform programmable power supply 2 and C phase current waveform of fundamental voltage amplitude
The output capacity of programmable power supply 8 is respectively 5kVA, A phase voltage waveform programmable power supply 4 and C phase voltage waveform programmable power supply 6 it is defeated
Capacity is respectively 1.5kVA out, the operating voltage of A phase standard current transformer 10 and C phase standard current transformer 18 be 10kV,
Rated frequency is 50Hz, nominal transformation ratio 600A/5A, fundamental wave accuracy are 0.05s grades, the accuracy of 2~25 subharmonic is 0.2
Grade, it is 10kV that A phase, which is tested current transformer 11, with the operating voltage that C phase is tested current transformer 17, rated frequency 50Hz, volume
Rated transformation ratio is 600A/5A, fundamental wave accuracy is 0.2s grades, the accuracy of 2~25 subharmonic is 0.5 grade, A phase normal voltage mutual inductance
The voltage rating of device 13 and C phase standard potential transformer 16 is 10kV, rated frequency 50Hz, nominal transformation ratio 10kV/100V,
Fundamental wave accuracy is 0.05 grade, the accuracy of 2~25 subharmonic is 0.2 grade, and A phase is tested voltage transformer 14 and is tested electricity with C phase
The voltage rating for pressing mutual inductor 15 is 10kV, rated frequency 50Hz, nominal transformation ratio 10kV/100V, fundamental wave accuracy are 0.2
The accuracy of grade, 2~25 subharmonic is 0.5 grade, is tested the specified electricity of high-voltage electric energy meter or middle pressure electrical energy measurement single unit system 12
Pressure is 10kV, rated frequency 50Hz, rated current 600A, accuracy are 1 grade, and the accuracy of three-phase standard electric energy meter 20 is
0.05 grade, subject 22 accuracy of three-phase electric energy meter is 0.2s grades.Transformer error calculator 21 is with 16, eight tunnel 250kS/s's
Analog/digital high-speed synchronous data acquiring circuit, data acquisition module 26 are same in addition to the analog/digital high speed with 16, eight tunnel 250kS/s
Outside step data Acquisition Circuit, also has and receive three-phase standard electric energy meter 20, transformer error calculator 21, low-voltage electric energy Watch Error
Calculator 23, high-voltage electric energy meter Error Calculator 24 output signal circuit.The medium voltage network under 7 operating system of Windows
Modeling and simulating module 28 in electrical energy measurement high pressure integration semi-physical simulation control platform 25 uses Matlab/
Simulink simulation software and StarSim software support the microgrid of 8 nodes to calculate.Each node contains distributed generation resource 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 simulation software realization, 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 database, the file function reading carried using LabView
Realize the read-write of shared data.Electrical energy measurement operational mode control module 27 provides good human-computer interaction in a modular fashion
Interface facilitates the various software emulations in medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform 25 to grasp
Work and hardware setting support the soft of each functional module of semi-physical simulation device integrated with medium voltage network electrical energy measurement high pressure
Part program interaction, which is called, supports any stoichiometric point with device remote control function, the reproduction of realization Operation of Electric Systems scene
It chooses.Power quality analysis module 32 can analyze the power quality characteristic of stoichiometric point electrical quantity and 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 regulations ", JG307-2006 " AC energy meter vertification regulation ", DL/T614-2007 " more function
Can electric energy meter ", country and professional standard and the relevant measurement verification such as DL/T645-2007 " multi -function watt -hour meter communication protocol "
The requirement of regulation.
The content that description in the present invention is not described in detail belongs to the well-known technique of those skilled in the art.
It is understood that above-described embodiment is the description of the invention, it is rather than limiting the invention, any
Without departing from the innovation and creation within the scope of true spirit, fall within the scope of protection of the present invention.
Claims (10)
1. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device, which is characterized in that including device three-phase work
Make power supply (1), A phase standard current transformer (10), A phase standard potential transformer (13), C phase standard current transformer (18), C
Phase standard potential transformer (16), mutual inductor secondary singal connect 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
(24) and medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform (25)；
The medium voltage network electrical energy measurement high pressure integration semi-physical simulation control platform (25) includes data acquisition module
Block (26), electrical energy measurement 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 number
According to interface module (33)；
The 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 mutual inductors from mutual inductor secondary singal connection circuit；
Modeling and simulating module receives the control information that electrical energy measurement operational mode control module issues and carries out modeling and simulating, to generate
The electric current and voltage of medium voltage network stoichiometric point run simulation waveform data；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 wave
Graphic data, the secondary singal data of all mutual inductors, various error informations are sent to display module and carry out real-time display, simultaneously will
Electric current and voltage operation simulation waveform data, the secondary singal data of all mutual inductors 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 simulation waveform data, A
Phase standard current transformer, A phase standard potential transformer, C phase standard current transformer, C phase standard potential transformer it is secondary
Signal is sent to emulation and measured waveform data interface module.
2. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 1, feature
It is, further includes A phase current waveform programmable power supply (2), presses current lifting device (3), A phase voltage waveform programmable power supply (4), A phase in A phase
Middle pressure booster (5), C phase current waveform programmable power supply (8), press in C phase current lifting device (9), C phase voltage waveform programmable power supply (6),
Booster (7), A phase are pressed to be tested current transformer (11), subject high-voltage electric energy meter or middle pressure electrical energy measurement single unit system in C phase
(12), A phase is tested voltage transformer (14), C phase is tested current transformer (17) and is tested voltage transformer (15) with C phase.
3. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 2, feature
It is, the subject high-voltage electric energy meter or middle pressure electrical energy measurement single unit system include A phase metering units and C phase metering units.
4. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 2, feature
It is,
The device three-phase working power is to A phase current waveform programmable power supply, A phase voltage waveform programmable power supply, C phase current wave
Shape programmable power supply and C phase voltage waveform programmable power supply provide three-phase four-wire system working power, A phase current waveform programmable power supply, A phase
Voltage waveform programmable power supply, C phase current waveform programmable power supply and C phase voltage waveform programmable power supply are received respectively from emulation and reality
The voltage and current emulation and measured waveform data of Wave data interface module are surveyed, and A is respectively driven according to respective Wave data
Current lifting device is pressed in phase, booster is pressed in A phase, presses in current lifting device and C phase in C phase and presses booster, so that pressing current lifting device, A phase in A phase
It presses in current lifting device and C phase pressure booster to export A phase study electric current, A phase study voltage, C phase respectively in middle pressure booster, C phase to try
Galvanoscope and C phase study voltage.
5. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 4, feature
It is,
A phase standard current transformer, A phase are tested current transformer, A phase standard potential transformer, A phase and are tested voltage transformer, C
Mutually subject current transformer, C phase standard current transformer, C phase are tested the secondary of voltage transformer and C phase standard potential transformer
Output port is connected with corresponding input port on mutual inductor secondary singal connection circuit respectively, the connection of mutual inductor secondary singal
Circuit is by A phase standard current transformer, A phase standard potential transformer, C phase standard current transformer, C phase standard potential transformer
Secondary singal be supplied to three-phase standard electric energy meter, mutual inductor secondary singal connects circuit and A phase is tested current transformer, A phase
Subject voltage transformer, C phase are tested current transformer, C phase is tested the secondary singal of voltage transformer and is supplied to subject three-phase electricity
Energy table, mutual inductor secondary singal connect circuit and the secondary singal of all mutual inductors are supplied to transformer error calculator, low pressure
Electric energy meter error calculator receives three-phase standard electric energy meter and the output signal for being tested three-phase electric energy meter simultaneously, and high-voltage electric energy meter misses
Poor calculator receives three-phase standard electric energy meter simultaneously and is tested the output letter of high-voltage electric energy meter or middle pressure electrical energy measurement single unit system
Number.
6. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 4, feature
It is,
For A phase current waveform programmable power supply, it is by comparing A phase current simulation waveform data and A phase standard current transformer
Secondary singal data in A phase press current lifting device output A phase study electric current carry out closed-loop control so that A phase study current wave
Shape is as far as possible close to the requirement of A phase current simulation waveform data, for pressing booster in A phase, pressing in current lifting device and C phase in C phase and press
Booster also carries out identical closed-loop control.
7. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 4, feature
It is,
A phase current waveform programmable power supply, A phase voltage waveform programmable power supply, C phase current waveform programmable power supply and C phase voltage waveform
The fundamental wave of the electricity waveform of programmable power supply output is identical, and fundamental wave takes a value in the range of setting.
8. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 4, feature
It is,
Selection for mutual inductor ratio, it is desirable that A phase standard current transformer and C phase standard current transformer, A phase normal voltage
Mutual inductor and C phase standard potential transformer, A phase are tested current transformer and C phase is tested that current transformer, that A phase is tested voltage is mutual
Sensor is identical as the no-load voltage ratio that C phase is tested voltage transformer, but is not required for standard current transformer and is tested current transformer
No-load voltage ratio is equal, does not also require standard potential transformer equal with the subject no-load voltage ratio of voltage transformer.
9. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 4, feature
It is,
Mutual inductor secondary singal connects circuit for two secondary letters of A phase standard potential transformer and C phase standard potential transformer
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
Device secondary singal connects circuit and A phase is tested two secondary singal output ends that voltage transformer is tested with C phase voltage transformer
Mouth connects into phase three-wire three port, and is connected with the three-phase voltage input port of subject three-phase electric energy meter；Transformer error meter
The secondary output signal that device receives all mutual inductors is calculated, the fundamental wave harmony wavelength-division of each signal is then calculated using fourier-transform
Amount, and each verification for being tested mutual inductor fundamental wave and harmonic wave accuracy is carried out by the polar coordinate representation method that transformer error defines.
10. medium voltage network electrical energy measurement high pressure integration semi-physical simulation device according to claim 4, feature
It is,
The data acquisition module is in addition to acquisition 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 mutual inductors is also collected and from the every of transformer error calculator
The fundamental wave and harmonic component of a secondary output signal of mutual inductor, the secondary output information of these mutual inductors and its fundamental wave and harmonic component
Information gives power quality analysis module by electricity waveform and error information module transfer.
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| CN202886584U (en) * | 2012-09-14 | 2013-04-17 | 珠海威瀚科技发展有限公司 | Novel integrated error checking device of high-voltage energy measurement device |
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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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