CN207587208U - A kind of multifunctional digital electric energy metering Training Simulation System - Google Patents
A kind of multifunctional digital electric energy metering Training Simulation System Download PDFInfo
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Abstract
A kind of multifunctional digital electric energy metering Training Simulation System, is related to training on electric power field.At present, training lacks a set of effective device and system in itself.The utility model includes two sets of the digitized measurement Simulated training devices, and two sets of the digitized measurement Simulated training devices are arranged at intervals；Every suit the digitized measurement Simulated training device includes cabinet, electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter experiment module, the full performance test module of digital metering Simulated training device, display module and control module；Cabinet is equipped with multiple equipment interface to connect the electronic mutual inductor tentative module for being built in cabinet, combining unit metering experiment module, digital electric energy meter experiment module, the full performance test module of digital metering Simulated training device.This system can realize double online real-time tournament, and training efficiency is high, and training is comprehensive, be conducive to accelerate the popularization and application of digitalized electric energy metering system.
Description
Technical field
The utility model is related to training on electric power field, a kind of especially multifunctional digital electric energy metering Simulated training system
System.
Background technology
Conditional electronic formula electric energy metered system is made of electromagnetic transformer and electronic electric energy meter, secondary a large amount of using electric
Cable transmits signal, and error component is numerous.Different from traditional simulation electric energy metered system, the entirety of digitalized electric energy metering system
The change of essence has occurred in framework, and whole system is by electronic current mutual inductor（ECT）, electronic type voltage transformer（EVT）、
Combining unit, digitalized electrical energy meter are formed, electronic mutual inductor（Containing combining unit）Instead of conventional electromagnetic mutual inductor, optical fiber
Instead of a large amount of electric wire, electronic electric energy meter is also replaced by digitalized electrical energy meter for communication.Digitalized electric energy metering has
Insulation system is simple, without explosion, without the advantages that second open circuit is dangerous, digital signal is shared is more easy, and carrying load ability is strong, and
The developing goal for building strong intelligent grid is proposed in State Grid Corporation of China in 2009, intelligent substation is as intelligent grid
One important link has been obtained promoting throughout the country and built.The basic demand of intelligent substation is whole station information digitalization, leads to
Believe platform network, information sharing standardization, information collection, measurement, control, protection, metering and monitoring etc. can be automatically performed
Function.Important component of the digitized measurement system as intelligent substation, to be digitized as feature, to measure certain point electric energy
For target, it is electronic mutual inductor or conventional electromagnetic mutual inductor according to mutual inductor, is divided into totally digitilized metering device and half
Word metering device.Based on mutual inductor, combining unit, digitalized electrical energy meter technology digitalized electric energy metering system in intelligent change
It is widely applied in power station.Digitalized electric energy metering system has following different characteristics with simulation electric energy metered system：1. number
The each equipment of word electric energy metering system is indivisible there are connecting each other in mechanism, it is necessary to be ground as an entirety
Study carefully, meanwhile, digitalized electrical energy meter only completes the function of a digital calculator in itself, individually studies digitalized electrical energy meter
Accuracy has no practical significance, and the two should be considered as to an entirety and traced to the source, its metering performance can be assessed；2.
Data between combining unit and digitalized electrical energy meter communicate under process layer bus network transmission conditions, and there are network work(for equipment
The adaptability appraisal problem of energy, when network function exception occurring or transmission circuit is broken down, digitalized electrical energy meter is not
The error of electrical energy measurement may be caused with treatment mechanism, need to study the system self-adaptability under network exceptional condition；3. number
According to the safety issue of transmission, digitalized electric energy metering system is since data are Network Transmitting, and there are safeties for the network information
Problem, electricity filching means may technically upgrade, although IEC has promulgated 62351 standards of IEC to handle IEC 61850
The safety issue of communication, but clear stipulaties explanation is had no for the safety of digitalized electric energy metering, it is badly in need of passing network
Defeated safety carries out examination analysis, avoids the loss of Utilities Electric Co.；4. the metering engineering model of digitalized electric energy metering system and
Simulation electric energy metered system also has very big difference, and digitalized electric energy metering accuracy is by the shadow of equipment performance index, field working conditions
Sound is larger, needs to establish the engineering model of digitalized electric energy metering system, the reality of accurate evaluation digitalized electric energy metering system
Error.
The digitized measurement technology has carried out greatly it as emerging measurement technology, various regions Utilities Electric Co. and relevant device manufacturer
Quantifier elimination, but since the digitized measurement system detectio technology, vertification regulation, relevant criterion are not perfect, detection device, detection
Ability needs significantly to be promoted, and seriously restricts the development of digitalized electric energy metering system, and in addition State Grid Corporation of China's target will
It asks and makes a concentrated effort to finish digital electrical energy measurement System Construction, use it for trade settlement, therefore, the construction of the digitized measurement system has been carved
Do not allow to delay.But it although puts into certain fund, human and material resources to digital electric energy metering to be trained stage by stage, but has trained
Instruction inherently lacks a set of effective device and system, and front man's practical operation more lacks a set of the digitized measurement emulation
Training system helps field assay to improve management automation, intelligent level with safeguarding digital electrical energy measurement.
Utility model content
The technical problems to be solved in the utility model and propose technical assignment be to prior art carry out improve with
It improves, a kind of multifunctional digital electric energy metering Training Simulation System is provided, to realize to the digitized measurement of staff
For the purpose of practical operation training.For this purpose, the utility model takes following technical scheme.
A kind of multifunctional digital electric energy metering Training Simulation System, including two sets of the digitized measurement Simulated training devices,
Two sets of the digitized measurement Simulated training devices are arranged at intervals；Every suit the digitized measurement Simulated training device includes cabinet, uses
Based on the electronic mutual inductor tentative module for carrying out electronic mutual inductor experiment, the combining unit realized by combining unit metering
It measures experiment module, filled for the digital electric energy meter experiment module of digital electric energy meter realization, for digital metering Simulated training
Put the full performance test module of digital metering Simulated training device, display module and the control module of full performance test, the control
Molding block and electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter experiment module, digital meter
The full performance test module of amount Simulated training device, display module are connected；It is interior to connect that cabinet is equipped with multiple equipment interface
It is placed in the electronic mutual inductor tentative module of cabinet, combining unit measures experiment module, digital electric energy meter experiment module, number
Measure the full performance test module of Simulated training device；The electronic mutual inductor tentative module, combining unit metering experiment mould
The full performance test module of block, digital electric energy meter experiment module, digital metering Simulated training device include standard configuration equipment and by
Measurement equipment.By two sets of simulators, and pass through network connection, it can be achieved that double online real-time tournament, improves emulation study
The competitive spirit of training；The perfect functions of modules of this system and equipment interface can easily access electronic mutual inductor, merge list
The digitizers such as member, digitalized electrical energy meter carry out entire digitalized electric energy metering system Training and Learning, theoretical research, imitate
True calculating, fault simulation, Analysis on communication performances, verification experimental verification, error checking, graduation examination, contest tourney etc. are various to grind
Study carefully and test；Staff can at any time, real-time online study, training, examination, training cost can be greatly reduced, shorten
The training and learning time of staff, accelerate the popularization and application of digitalized electric energy metering system.
As further improving and supplementing to above-mentioned technical proposal, it is special that the utility model further includes following supplementary technology
Sign.
The electronic mutual inductor tentative module includes standard potential transformer, standard current transformer, electronic type electricity
Pressure sensor, electronic type current sensor, combining unit, Synchronization Clock, wall hand over machine and checking electronic type transformers
Instrument；Electronic mutual inductor tentative module is using primary current, voltage as input signal, and input signal is simultaneously into normal voltage/electricity
Current transformer and electronic type voltage/current transformer, the standard secondary singal access electronics of normal voltage/current transformer output
Formula mutual-inductor tester, the small analog signal access electronic transducer calibration instrument of electronic type voltage/current transformer output and
Combining unit, the signal access combining unit of electronic type voltage/current transformer output, combining unit output terminal are directly accessed electricity
Minor mutual-inductor tester input terminal first passes through interval layer switch and then accesses the input of electronic transducer calibration instrument
End.This module individually can give research and experimental test training to electronic mutual inductor self character, with primary current, voltage
For input signal, electronic mutual inductor metering performance is tested（Fundamental wave, harmonic wave）, communication performance, time performance；Elementary error, absolutely
To delay-time characteristic etc.；Electronic transducer calibration instrument not only can individually divide electronic mutual inductor self character
Analysis, and electronic transducer calibration instrument+combining unit overall permanence can be analyzed.
The electronic mutual inductor tentative module further includes three-phase program-controlled power source, increasing apparatus, up-flow device, described
The input terminal of increasing apparatus be connected with program controled power source, the output terminal of increasing apparatus is connected with standard potential transformer；It is described
The input terminal of up-flow device be connected with three-phase program-controlled power source, the output terminal for flowing up device is connected with standard current transformer.
Three-phase program-controlled power source is used as a test current signal and test voltage signal to carry respectively as after the boosted up-flow of signal source
Pay standard voltage/current mutual inductor.
The three-phase program-controlled power source, increasing apparatus, up-flow device, standard potential transformer, standard current transformer,
Synchronization Clock is spaced layer switch and electronic transducer calibration instrument as standard configuration equipment, the electronic type voltage mutual inductance
Device, electronic current mutual inductor, combining unit are equipment under test.The standard configuration equipment can realize that equipment shares, the quilt
Measurement equipment is conveniently replaceable because of test object and content difference.
The combining unit metering experiment module includes three-phase program-controlled power source, analog input combining unit, synchronization
Clock apparatus, interval layer switch, combining unit tester, combining unit measure experiment module using three-phase program-controlled power source as letter
Number source, simultaneously into analog input combining unit and combining unit tester, combining unit output terminal directly connects output signal
Enter combining unit tester or first pass through interval layer switch and then access combining unit tester.Combining unit metering experiment
Module can test the error characteristics of analog input combining unit, error influence amount, communication performance, net synchronization capability.
The three-phase program-controlled power source, Synchronization Clock, interval layer switch, combining unit tester are set for standard configuration
Standby, the analog input combining unit is equipment under test.The standard configuration equipment can realize that equipment shares, and described is tested
Equipment is conveniently replaceable because of test object and content difference.
Digital electric energy meter experiment module includes three-phase program-controlled power source, analog input combining unit, synchronised clock dress
It puts, be spaced layer switch, digital electricity meter and digital electricity meter tester, the digital electricity meter tester includes simulation number
Word converter, digital power source, standard digital electric energy meter, Error Calculator；When virtual load verifies, using digital power source as letter
Number source, the signal of output is simultaneously into the standard digital electric energy meter in measured number electric energy meter and digital powermeter verification instrumeter, quilt
Survey the Error Calculator in the pulse signal access digital electricity meter tester of digital electricity meter output；In real load check,
Using three-phase program-controlled power source as signal source, the three-phase voltage three-phase current of output enters analog input combining unit, merges single
The digital signal of member output enters interval layer switch, and the digital signal for being spaced layer switch respectively enters digital electricity meter verification
The standard digital electric energy meter and tested digital electricity meter of instrument, output pulse signal accesses digital electricity meter tester respectively later
Error calculator module.This module realizes multiple pilot projects using digital power source as signal source：Digital electric energy meter shunt running,
Starting test project, message response pilot project, network communication performance test project, is missed sampled value interface pilot project substantially
Difference experiment and error influence amount pilot project, constant pilot project, error of time of day pilot project.
On the three-phase program-controlled power source, Synchronization Clock, interval layer switch, digital electricity meter tester be mark
With equipment；The analog input combining unit and digital electricity meter are equipment under test.The standard configuration equipment, which can be realized, to be set
Standby to share, the equipment under test is conveniently replaceable because of test object and content difference.
The full performance test module of digital metering Simulated training device include three-phase program-controlled power, digital electricity meter tester,
Electronic electric energy meter, analog input combining unit, in Synchronization Clock, interval layer switch, digital electricity meter, station level
Interchanger；The digital electricity meter tester includes analog-digital converter, standard digital power source, standard digital electric energy meter
And Error Calculator；The three-phase program-controlled power, digital electricity meter tester, electronic electric energy meter, in Synchronization Clock,
It is spaced layer switch, station level interchanger is standard configuration equipment；Analog input combining unit, digital electricity meter are equipment under test；
A) in the comparison of standard digital table and digital table to be tested, the three-phase program-controlled power source variable using electric parameter as
Signal source, by analog input combining unit outgoing message signal to standard digital electric energy meter and digital electric energy to be tested
The output terminal of table, standard digital electric energy meter and digital electricity meter to be tested is connected with Error Calculator；
B) in the comparison of electronic electric energy meter and digital table, using the variable three-phase program-controlled power source of electric parameter as signal
Source, while electron formula electric energy meter and analog input combining unit are exported, analog input combining unit output terminal and number
Electric energy meter is connected；Electronic electric energy meter, digital electricity meter output terminal be connected with error processor；
C) in the digitized measurement comprehensive test platform global error, using three-phase program-controlled power source as signal source, three-phase journey
Analog-digital converter of the three-phase voltage three-phase current signal for digital electricity meter tester, the analog quantity for controlling power source output are defeated
Enter the input signal of combining unit, analog input combining unit passes through wall switching layer and digital electricity meter and standard digital
Electric energy meter is connected, and the output terminal of analog-digital converter is connected with the input terminal of standard digital electric energy meter；Digital electricity meter, standard
The output terminal of digital electricity meter is connected with Error Calculator；The digital power source and standard digital electric energy meter, digital electric energy
Table is connected；Input signal of the sampling value message of analog input combining unit output as tested digital electric energy, it is bright in user
The digitized measurement synthesis when different capacity factor, different input currents are measured under true laboratory rated voltage, rated current is surveyed
Try platform global error.The comparison for completing standard digital table and digital table to be tested, electronic electric energy meter and digital table can be facilitated
Comparison, Semi-digital the digitized measurement comprehensive test platform global error verification.It can be to the whole of digital electric energy metered system
Body and all parts are detected, and ensure the accuracy of the digital electric energy metered system by detection of platform；It can be into the hand-manipulating of needle
The engineering model of digital electric energy metered system is studied, is conducive to study the error source of digital electric energy metered system, error spy
Property, for error in the digital electric energy metered system application of analysis is overproof etc., practical problems provide theory analysis basis；It can test
Room medium-long range carries out the error characteristics research of digital electric energy metered system under field working conditions, i.e., real load condition reproduction.
The standard configuration equipment is set in cabinet, and the equipment under test can be accessed by the equipment interface of cabinet
And/or in cabinet；Electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter experiment mould
The full performance test module of block, digital metering Simulated training device shares standard configuration equipment.Standard configuration equipment, which is realized, to be shared, and reduces standard configuration
The quantity of equipment, greatly reduces cost, by interface realize equipment under test it is replaceable, greatly reduce system weight and
Space hold.
Advantageous effect：
1st, data acquisition, analysis and the place of all each test events of digitalized electric energy metering system comprehensive test platform are realized
Reason, management and control testing process.
2nd, Simulated computer Training and Learning, fault simulation, graduation examination, contest tourney are realized, is related to digital electrical energy measurement
Total system wiring, operation principle, communication protocol, fault simulation and analysis, data extraction are with utilizing, daily various operations,
Can at any time, real-time online study, training, examination, training cost can be greatly reduced.
3rd, the digital electrical energy measurement theoretical level and actual operational capacity of vast line gage work personnel is improved, is conducive to
Accelerate national IN Construction.
4th, it realizes double field simulation contest, improves the competitive spirit of emulation Training and Learning, convenient for obtaining better
Practise effect.
Description of the drawings
Fig. 1 is the digitized measurement Simulated training apparatus structure schematic diagram of the utility model.
Fig. 2 is the utility model electronic mutual inductor tentative module schematic diagram.
Fig. 3 is the utility model combining unit metering experiment module schematic diagram.
Fig. 4 is the utility model digital electric energy meter experiment module schematic diagram.
Fig. 5 is the full performance test module principle figure of the utility model digital metering Simulated training device.
Fig. 6 is the Compare System figure of the utility model standard digital table and digital table to be tested.
Fig. 7 is the Compare System figure of the utility model electronic electric energy meter and digital table.
Fig. 8 is the utility model the digitized measurement comprehensive test platform global error system diagram.
In figure：1- cabinets；2- display modules.
Specific embodiment
The technical solution of the utility model is described in further detail below in conjunction with Figure of description.
As shown in Figure 1, a kind of multifunctional digital electric energy metering Training Simulation System, including two sets of the digitized measurement trainings
Simulator, two sets of the digitized measurement Simulated training devices are arranged at intervals；Every suit the digitized measurement Simulated training device wraps
Include cabinet 1, for carry out electronic mutual inductor experiment electronic mutual inductor tentative module, for combining unit metering realize
Combining unit metering experiment module, for digital electric energy meter realize digital electric energy meter experiment module, for digital metering
The full performance test module of digital metering Simulated training device, display module and the control mould of the full performance test of Simulated training device
Block, control module and electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter experiment module,
The full performance test module of digital metering Simulated training device, display module 2 are connected；1 panel of cabinet is equipped with multiple equipment interface
The electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter experiment of cabinet 1 are built in connection
The full performance test module of module, digital metering Simulated training device；Electronic mutual inductor tentative module, combining unit metering experiment
The full performance test module of module, digital electric energy meter experiment module, digital metering Simulated training device include standard configuration equipment and
Equipment under test.
As shown in Fig. 2, in order to realize to electronic mutual inductor and electronic transducer calibration instrument+combining unit overall permanence
It is analyzed, electronic mutual inductor tentative module includes standard potential transformer, standard current transformer, electronic type voltage sensing
Device, electronic type current sensor, combining unit, Synchronization Clock, wall hand over machine and electronic transducer calibration instrument；Electronics
Formula mutual inductor tentative module is using primary current, voltage as input signal, and input signal is simultaneously into normal voltage/current transformer
With electronic type voltage/current transformer, the standard secondary singal access electronic mutual inductor of normal voltage/current transformer output
Tester, the small analog signal access electronic transducer calibration instrument and combining unit of electronic type voltage/current transformer output,
The FT3 signals access combining unit of electronic type voltage/current transformer output, the IEC61850-9 of combining unit output are first passed through
It is spaced layer switch and then accesses the input terminal of electronic transducer calibration instrument.This module can be individually to electronic mutual inductor sheet
Body characteristic gives research and experimental test training, and using primary current, voltage as input signal, test electronic mutual inductor is Targets
Energy（Fundamental wave, harmonic wave）, communication performance, time performance, elementary error, absolute delay time response etc.；Checking electronic type transformers
Instrument not only can individually analyze electronic mutual inductor self character, and can be to electronic transducer calibration instrument+merging
Unit overall permanence is analyzed.
In order to realize boosting/up-flow and provide a test voltage/current signal, electronic mutual inductor tentative module also wraps
Three-phase program-controlled power source, increasing apparatus, up-flow device are included, the input terminal of increasing apparatus is connected with program controled power source, increasing apparatus
Output terminal be connected with standard potential transformer；The input terminal of up-flow device is connected with three-phase program-controlled power source, flows up device
Output terminal is connected with standard current transformer.Three-phase program-controlled power source is as electric as primary experiment after the boosted up-flow of signal source
Stream signal and test voltage signal are respectively supplied to normal voltage/current transformer.
In order to distinguish shared device and non-common equipment, three-phase program-controlled power source, increasing apparatus, up-flow device, standard electric
Pressure mutual inductor, standard current transformer, Synchronization Clock, interval layer switch and electronic transducer calibration instrument are set for standard configuration
Standby, electronic type voltage transformer, electronic current mutual inductor, combining unit are equipment under test.Standard configuration equipment can realize that equipment is total to
With equipment under test is conveniently replaceable because of test object and content difference.
As shown in figure 3, carrying out various performance tests to analog input combining unit to realize, combining unit metering is real
Module is tested to include three-phase program-controlled power source, analog input combining unit, Synchronization Clock, interval layer switch, merge list
First tester, combining unit measure experiment module using three-phase program-controlled power source as signal source, and output signal is simultaneously into analog quantity
Combining unit and combining unit tester are inputted, the IEC61850-9 of combining unit output first passes through interval layer switch and then connects
Enter combining unit tester, error characteristics, the error that combining unit metering experiment module can be to analog input combining unit
Influence amount, communication performance, net synchronization capability are tested.
In order to distinguish shared device and non-common equipment, three-phase program-controlled power source, Synchronization Clock, wall exchange
Machine, combining unit tester are standard configuration equipment, and analog input combining unit is equipment under test.Standard configuration equipment can realize that equipment is total to
With equipment under test is conveniently replaceable because of test object and content difference.
As shown in figure 4, in order to realize the experiment to being tested electric energy meter, digital electric energy meter experiment module includes three-phase program-controlled
Power source, analog input combining unit, Synchronization Clock, interval layer switch, digital electricity meter and digital electricity meter school
Instrument is tested, digital electricity meter tester includes analog-digital converter, digital power source, standard digital electric energy meter, Error Calculator；
When virtual load verifies, using digital power source as signal source, the signal of output is simultaneously into measured number electric energy meter and number electricity
Standard digital electric energy meter in energy table tester, the pulse signal access digital electricity meter tester of measured number electric energy meter output
In Error Calculator；In real load check, using three-phase program-controlled power source as signal source, the three-phase voltage three-phase current of output
Into analog input combining unit, the digital signal of combining unit output enters interval layer switch, is spaced layer switch
Digital signal respectively enters the standard digital electric energy meter of digital electricity meter tester and tested digital electricity meter, exports respectively later
Pulse signal accesses the error calculator module of digital electricity meter tester.This module is realized using digital power source as signal source
Multiple pilot projects：Digital electric energy meter shunt running, starting test project, sampled value interface pilot project, message response experiment item
Mesh, network communication performance test project, elementary error experiment and error influence amount pilot project, constant pilot project, day meter
When error pilot project.
In order to distinguish shared device and non-common equipment, on three-phase program-controlled power source, Synchronization Clock, wall exchanges
Machine, digital electricity meter tester are standard configuration equipment；Analog input combining unit and digital electricity meter are equipment under test.Standard configuration is set
Standby achievable equipment shares, and equipment under test is conveniently replaceable because of test object and content difference.
As shown in figure 5, the entirety of digital electric energy metered system is detected in order to realize, digital metering Simulated training dress
It puts full performance test module and includes three-phase program-controlled power, digital electricity meter tester, electronic electric energy meter, analog input merging
On unit, Synchronization Clock, it is spaced layer switch, digital electricity meter, station level interchanger；Digital electricity meter tester includes
Analog-digital converter, standard digital power source, standard digital electric energy meter and Error Calculator；Three-phase program-controlled power, number electricity
Can table tester, electronic electric energy meter, in Synchronization Clock, interval layer switch, station level interchanger be standard configuration equipment；Mould
Analog quantity input combining unit, digital electricity meter are equipment under test；
A) in the comparison of standard digital table and digital table to be tested, as shown in fig. 6, with the variable three-phase journey of electric parameter
Control power source be signal source, by analog input combining unit outgoing message signal to standard digital electric energy meter with it is to be tested
The output terminal of digital electricity meter, standard digital electric energy meter and digital electricity meter to be tested is connected with Error Calculator；
B) in the comparison of electronic electric energy meter and digital table, as shown in fig. 7, with the variable three-phase program-controlled work(of electric parameter
Rate source is signal source, while exports electron formula electric energy meter and analog input combining unit, and analog input combining unit is defeated
Outlet is connected with digital electricity meter；Electronic electric energy meter, digital electricity meter output terminal be connected with error processor；
C) in the digitized measurement comprehensive test platform global error, as shown in figure 8, using three-phase program-controlled power source as signal
Source, the three-phase voltage three-phase current signal of three-phase program-controlled power source output is the Analog-digital Converter of digital electricity meter tester
The input signal of device, analog input combining unit, analog input combining unit pass through wall switching layer and digital electric energy
Table and standard digital electric energy meter are connected, and the output terminal of analog-digital converter is connected with the input terminal of standard digital electric energy meter；Number
Word electric energy meter, standard digital electric energy meter output terminal be connected with Error Calculator；Digital power source and standard digital electric energy meter, number
Word electric energy meter is connected；Input signal of the sampling value message of analog input combining unit output as tested digital electric energy,
The digitized measurement when different capacity factor, different input currents is measured under the clear and definite laboratory rated voltage of user, rated current
Comprehensive test platform global error.Can facilitate the comparison for completing standard digital table and digital table to be tested, electronic electric energy meter and
Comparison, the verification of Semi-digital the digitized measurement comprehensive test platform global error of digital table.It can be to digital electrical energy measurement system
The entirety and all parts of system are detected, and ensure the accuracy of the digital electric energy metered system by detection of platform；It can be with
Carry out the engineering model research for digital electric energy metered system, be conducive to study the error source of digital electric energy metered system,
Error characteristics, for error in the digital electric energy metered system application of analysis is overproof etc., practical problems provide theory analysis basis；It can be with
The error characteristics research of digital electric energy metered system under field working conditions is remotely carried out in the lab, i.e., real load condition reproduction.
In order to simplify structure and be conveniently replaceable equipment under test, standard configuration equipment is set in cabinet 1, and equipment under test passes through cabinet 1
The equipment interface access system of panel；Electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter
The full performance test module of experiment module, digital metering Simulated training device shares standard configuration equipment.Standard configuration equipment, which is realized, to be shared, and is reduced
The quantity of standard configuration equipment, greatly reduces cost, realizes the replaceable of equipment under test by interface, greatly reduces system
Weight and space hold.
The perfect functions of modules of this system and equipment interface can easily access electronic mutual inductor, combining unit, number
Change the digitizers such as electric energy meter, entire digitalized electric energy metering system is carried out Training and Learning, theoretical research, simulation calculation,
Various researchs and the surveys such as fault simulation, Analysis on communication performances, verification experimental verification, error checking, graduation examination, contest tourney
Examination.Staff can at any time, real-time online study, training, examination, training cost can be greatly reduced, shorten work people
The training and learning time of member, accelerate the popularization and application of digitalized electric energy metering system.
In double real-time on-line simulation contest, two sets of the digitized measurement Simulated training devices of this system are positioned over 2
Adjacent room, and 2 meters or more are spaced, to avoid electromagnetic interference.
A kind of multifunctional digital electric energy metering Training Simulation System shown in figure 1 above -8 is the specific of the utility model
Embodiment has embodied the utility model in essence feature and progress, can be according to practical use needs, in the utility model
Enlightenment under, the equivalent modifications of shape, structure etc., the row in the protection domain of this programme are carried out to it.
Claims (10)
1. a kind of multifunctional digital electric energy metering Training Simulation System, it is characterised in that：Including two sets of the digitized measurement trainings
Simulator, two sets of the digitized measurement Simulated training devices are arranged at intervals；Every suit the digitized measurement Simulated training device wraps
Include cabinet, for carry out electronic mutual inductor experiment electronic mutual inductor tentative module, for combining unit metering realize
Combining unit metering experiment module, for digital electric energy meter realize digital electric energy meter experiment module, for digital metering
The full performance test module of digital metering Simulated training device, display module and the control mould of the full performance test of Simulated training device
Block, the control module are tested with electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter
The full performance test module of module, digital metering Simulated training device, display module are connected；Cabinet connects equipped with multiple equipment
Mouth is real to connect the electronic mutual inductor tentative module for being built in cabinet, combining unit metering experiment module, digital electric energy meter
Test the full performance test module of module, digital metering Simulated training device；The electronic mutual inductor tentative module, combining unit
It measures experiment module, digital electric energy meter experiment module, the full performance test module of digital metering Simulated training device and includes mark
With equipment and equipment under test.
2. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 1, it is characterised in that：It is described
Electronic mutual inductor tentative module include standard potential transformer, standard current transformer, electronic voltage transducer, electronics
Formula current sensor, combining unit, Synchronization Clock, wall hand over machine and electronic transducer calibration instrument；Electronic type mutual inductance
Device tentative module is using primary current, voltage as input signal, and input signal is simultaneously into normal voltage/current transformer and electronics
Formula voltage/current mutual inductor, the standard secondary singal access checking electronic type transformers of normal voltage/current transformer output
Instrument, the small analog signal access electronic transducer calibration instrument and combining unit of electronic type voltage/current transformer output, electronics
The signal access combining unit of formula voltage/current mutual inductor output, combining unit output terminal are directly accessed electronic mutual inductor school
It tests instrument input terminal or first passes through interval layer switch and then access the input terminal of electronic transducer calibration instrument.
3. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 2, it is characterised in that：It is described
Electronic mutual inductor tentative module further include three-phase program-controlled power source, increasing apparatus, up-flow device, the increasing apparatus
Input terminal is connected with program controled power source, and the output terminal of increasing apparatus is connected with standard potential transformer；The up-flow device
Input terminal is connected with three-phase program-controlled power source, and the output terminal for flowing up device is connected with standard current transformer.
4. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 3, it is characterised in that：It is described
Three-phase program-controlled power source, increasing apparatus, up-flow device, standard potential transformer, standard current transformer, synchronised clock dress
It is standard configuration equipment to put, be spaced layer switch and electronic transducer calibration instrument, and the electronic voltage transducer, electronic type are electric
Flow sensor, combining unit are equipment under test.
5. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 1, it is characterised in that：It is described
Combining unit metering experiment module include three-phase program-controlled power source, analog input combining unit, Synchronization Clock, interval
Layer switch, combining unit tester, combining unit measure experiment module using three-phase program-controlled power source as signal source, output signal
Simultaneously into analog input combining unit and combining unit tester, combining unit output terminal is directly accessed combining unit test
Instrument first passes through interval layer switch and then accesses combining unit tester.
6. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 5, it is characterised in that：It is described
Three-phase program-controlled power source, Synchronization Clock, interval layer switch, combining unit tester be standard configuration equipment, the mould
Analog quantity input combining unit is equipment under test.
7. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 1, it is characterised in that：Number
Formula electric energy meter experiment module includes three-phase program-controlled power source, analog input combining unit, Synchronization Clock, wall and exchanges
Machine, digital electricity meter and digital electricity meter tester, the digital electricity meter tester include analog-digital converter, number
Power source, standard digital electric energy meter, Error Calculator；When virtual load verifies, using digital power source as signal source, the letter of output
Number simultaneously into the standard digital electric energy meter in measured number electric energy meter and digital powermeter verification instrumeter, measured number electric energy meter is defeated
Error Calculator in the pulse signal access digital electricity meter tester gone out；In real load check, with three-phase program-controlled power
Source is signal source, and the three-phase voltage three-phase current of output enters analog input combining unit, the number letter of combining unit output
Number enter interval layer switch, be spaced layer switch digital signal respectively enter digital electricity meter tester standard digital electricity
Can table and tested digital electricity meter, the Error Calculator mould of output pulse signal access digital electricity meter tester respectively later
Block.
8. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 7, it is characterised in that：It is described
Three-phase program-controlled power source, in Synchronization Clock, interval layer switch, digital electricity meter tester be standard configuration equipment；It is described
Analog input combining unit and digital electricity meter be equipment under test.
9. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 1, it is characterised in that：Number
Measure Simulated training device full performance test module include three-phase program-controlled power, digital electricity meter tester, electronic electric energy meter,
In analog input combining unit, Synchronization Clock, it is spaced layer switch, digital electricity meter, station level interchanger；Described
Digital electricity meter tester includes analog-digital converter, standard digital power source, standard digital electric energy meter and Error Calculator；
The three-phase program-controlled power, digital electricity meter tester, electronic electric energy meter, in Synchronization Clock, interval layer switch,
Station level interchanger is standard configuration equipment；Analog input combining unit, digital electricity meter are equipment under test；
A) in the comparison of standard digital table and digital table to be tested, using the variable three-phase program-controlled power source of electric parameter as signal
Source, by analog input combining unit outgoing message signal to standard digital electric energy meter and digital electricity meter to be tested, mark
The output terminal of quasi- digital electricity meter and digital electricity meter to be tested is connected with Error Calculator；
B) in the comparison of electronic electric energy meter and digital table, using the variable three-phase program-controlled power source of electric parameter as signal source,
Electron formula electric energy meter and analog input combining unit, analog input combining unit output terminal and digital electric energy are exported simultaneously
Table is connected；Electronic electric energy meter, digital electricity meter output terminal be connected with error processor；
C) in the digitized measurement comprehensive test platform global error, using three-phase program-controlled power source as signal source, three-phase program-controlled work(
The three-phase voltage three-phase current signal of rate source output is closed for analog-digital converter, the analog input of digital electricity meter tester
And the input signal of unit, analog input combining unit pass through wall switching layer and digital electricity meter and standard digital electric energy
Table is connected, and the output terminal of analog-digital converter is connected with the input terminal of standard digital electric energy meter；Digital electricity meter, standard digital
The output terminal of electric energy meter is connected with Error Calculator；The digital power source and standard digital electric energy meter, digital electricity meter phase
Even；Input signal of the sampling value message of analog input combining unit output as tested digital electric energy, it is clearly real in user
The digitized measurement integration test when measuring different capacity factor, different input currents is tested under room rated voltage, rated current to put down
Platform global error.
10. a kind of multifunctional digital electric energy metering Training Simulation System according to claim 1-9 any claims,
It is characterized in that：The standard configuration equipment is set in cabinet, and the equipment under test can be connect by the equipment interface of cabinet
Enter and/or in cabinet；Electronic mutual inductor tentative module, combining unit metering experiment module, digital electric energy meter experiment
The full performance test module of module, digital metering Simulated training device shares standard configuration equipment.
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