CN109031182A - A kind of digitalized electric energy measuring equipment integrated test system and method - Google Patents
A kind of digitalized electric energy measuring equipment integrated test system and method Download PDFInfo
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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- 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
Abstract
The invention discloses a kind of digitalized electric energy measuring equipment integrated test systems, comprising: physical circuit element, tested measuring equipment unit, compares measurement criteria unit, data transmission network, data analysis unit, synchronous clock synchronization unit at fictitious load.The present invention passes through building physics moving die system, generate the line voltage distribution and load current close to true operating condition, the environment of closer actual operating mode is provided for test existing device or the performance for verifying self-research equipment, it can be not only used for the test of single metering equipment, it can also be used for the test of electric energy metered system grade, may advantageously facilitate the research of digitalized electric energy measurement technology and application.
Description
Technical field
The present invention relates to a kind of digitalized electric energy measuring equipment integrated test system and methods, belong to intelligent power system skill
Art field.
Background technique
In recent years, as intelligent substation widelys popularize construction, transforming plant primary and secondary device all achieve very big
It breaks through and substation's electrical energy measurement system is given in development, the especially application of electronic mutual inductor, combining unit and digitalized electrical energy meter
System brings deep change.Digitalized electric energy metering system is using digitlization and networked data transmission mode, more adaptation intelligence
The demand for development of energy power grid.
China accelerated smart grid digitalized electric energy measuring system construction dynamics from 2016.With national grid public affairs
Department is the soldier at the head of a formation, and sales department of Guo Wang company has successively put into effect a series of files, and each provincial Utilities Electric Co. is instructed to carry out digitlization electricity
It can the work of measuring equipment detection architecture Pilot project construction.According to guiding theory, multiple provincial Utilities Electric Co.s have carried out digitlization
The comprehensive survey study of platform construction of metering system, while also China Electric Power Research Institute, the Central China University of Science and Technology etc. to conduct a research
Scientific research institution and colleges and universities.With the development and maturation of digitalized electric energy measurement technology, digitalized electric energy metering is used for trade settlement
It is inexorable trend.
However, current detection method is to carry out detection to the metering performance of individual equipment under ideal working environment, it is difficult
The problems such as to solve the crash generated in actual operation, Power unbalance, anomalous differences.Moreover, being directed to digitalized electric energy meter
Amount system longtime running stability, complex working condition adaptability, system overall accuracy, process-level network state are to metering system
Influence, current laboratory testing method is helpless.Importantly, to the end of the year 2017, third generation intelligent substation side
The landing of case gradual perfection, corresponding digitalized electric energy metered scheme is also changed, and is ground to the verifying of Novel measuring scheme
Study carefully with measuring equipment performance test, at present still be in blank.
In conclusion existing digitalized electric energy measuring equipment detection system and method cannot combine closely, equipment operation is practical
Environment, and in order to meet third generation intelligent substation electrical energy measurement plan-validation and equipment performance test, it is necessary to it proposes a set of
Digitalized electric energy measuring equipment integrated test system and method carry out coherent detection, analysis and research, promote the digitized measurement body
Be is perfect.
Summary of the invention
Purpose: in order to overcome the deficiencies in the prior art, it is comprehensive that the present invention provides a kind of digitalized electric energy measuring equipment
Close test macro and method.
Technical solution: in order to solve the above technical problems, the technical solution adopted by the present invention are as follows:
A kind of digitalized electric energy measuring equipment integrated test system, comprising: physical circuit element, fictitious load, tested metering are set
Standby unit compares measurement criteria unit, data transmission network, data analysis unit, synchronous clock synchronization unit；
The physical circuit element generates under the specific main electrical scheme operational mode of imitating substation for constructing transforming plant primary route
Line voltage distribution and electric current, the line voltage distribution and electric current of substation low-voltage side be supplied to fictitious load, the on high-tension side line of substation
Road voltage and current is for tested measuring equipment unit, comparison measurement criteria unit acquisition；
The fictitious load is used to simulate practical electric load and runs the electric characteristic having, including harmonic characteristic, amplitude Characteristics,
Behavioral characteristics, to determine the line voltage distribution and electric current design parameter of substation low-voltage side；
The tested measuring equipment unit indicates tested measuring equipment, including accessible existing measuring equipment and voluntarily researches and develops
Measuring equipment, it is single to be sent to data analysis for acquiring the voltage and current of transforming plant primary route through data transmission network
Member；
The comparison measurement criteria unit indicates accuracy of measurement two class of accuracies at least higher than tested measuring equipment unit
Measuring device, be made of high precision electric current transducer, voltage sensor, data collector, for acquiring transforming plant primary line
The voltage and current on road is sent to data analysis unit；
The data transmission network indicates the data networks such as Ethernet or high speed Self-healing Rings, for connecting various equipment, transmits number
Word information；
The synchronous clock synchronization unit indicates high-precision pulse per second (PPS) source or IRIG-B code source, for synchronize tested measuring equipment unit,
Compare the data acquisition time of measurement criteria unit；
The data analysis unit is used to analyze tested measuring equipment unit and compares the measurement data of measurement criteria unit, calculates
Measurement error and electric energy error.
Preferably, the physical circuit element, including route, bus, switch, transformer, power supply, load, it is female
Line includes: bus 1, bus 2；Route includes: route 1, route 2；Switch includes: switch 1, switch 2, switch 4, switch 5, switch
6, switch 7；Transformer includes: three-phase transformer 1, three-phase transformer 2；Power supply includes: power supply 1, power supply 2；
Load includes: adjustable fictitious load 1, adjustable fictitious load 2；
Compare measurement criteria unit, including the acquisition of standard CT1, standard CT2, standard CT0, standard PT, data collector 1, data
Device 3, data collector 5；
Tested measuring equipment unit, including ECT1, ECT2, ECT0, PT1, PT2, data collector 2, data collector 4, data
Collector 6, data collector 7, data collector 8, route MU1, route MU2, bus MU1, bus MU2, switch MU；
Data transmission network, including high speed self-healing looped network interchanger, digitalized electrical energy meter；
The received data source of data analysis unit includes data collector 1, data collector 3, data collector 5, high speed self-healing
The output data of ring exchanger, digitalized electrical energy meter is analyzed to be verified for analyzing the measurement error of ECT1, ECT2, ECT0
The electric energy metering error of electric energy metered system；
Clock synchronization unit issues IRIG-B code, carries out sample-synchronous to corresponding data collector by each MU；
Route 1, route 2 are connected separately on the bus 1, bus 2；Bus 1 is connected with bus 2 by route 3；Route 1
One end is connected with power supply 1, and 1 other end of route is connected with adjustable fictitious load 1 by three-phase transformer 1；1 high pressure of three-phase transformer
It standard PT, is marked to switch 1, standard PT, standard CT1, ECT1, switch 2 is respectively arranged between 1 crosspoint of route 1 and bus side
Quasi- CT1 output end is connected with data collector 1 respectively, and 1 output end of data collector is connected with data analysis unit；ECT1
Output end is connected with data collector 2, and data collector 2 is connected with route MU1, and route MU1 and high speed self-healing looped network are handed over
It changes planes and is connected；Route 1 and 1 crosspoint of bus are marked to switch 3, standard CT2, ECT2, switch 4 is respectively arranged between power supply 1
Quasi- CT2 output end and data collector 3,3 output end of data collector are connected with data analysis unit；ECT2 output end and number
It is connected according to collector 4, data collector 4 is connected with route MU2, and route MU2 is connected with high speed self-healing looped network interchanger；
PT1 is provided on bus 1, PT1 output end is connected with data collector 8, data collector 8 and bus MU1, bus
MU1 is connected with route MU1；
Switch 5, standard CT0, ECT0 are respectively arranged on route 3, standard CT0 output end is connected with data collector 5, data
Collector 5 is connected with data analysis unit；ECT0 output end is connected with data collector 6, data collector 6 and switch MU
It is connected, switch MU is connected with high speed self-healing looped network interchanger；
2 one end of route is connected with power supply 2, and 2 other end of route is connected with adjustable fictitious load 2 by three-phase transformer 2；Three phase transformations
2 high-pressure side of depressor is provided with switch 7 between 2 crosspoint of route 2 and bus；Route 2 and 2 crosspoint of bus are between power supply 2
It is provided with switch 6；
PT2 is provided on bus 2, PT2 output end is connected with data collector 7, data collector 7 and bus MU2, bus
MU2 is connected with route MU1；
The sampled value of bus MU1 and bus MU2 are sent to route MU1, and it is arranged side by side that voltage is carried out in route MU1；Route MU1, route
MU2, switch MU data export to high speed self-healing looped network interchanger；Digitalized electrical energy meter takes survey from high speed self-healing looped network interchanger
Data are measured, emulation electric energy calculated is the electric flux of practical 1 high-pressure side stoichiometric point of main transformer.
Preferably, the actual motion voltage of the power supply 1 and power supply 2 is 380V power electric.
Preferably, the inlet wire specified phase voltage 220V of the three-phase transformer 1 and three-phase transformer 2, specified electricity
Flow 10A, system oepration at full load power 6.6kW, for meeting long-term running safety and cost-effectiveness requirement.
A kind of test method of integrated test system, includes the following steps:
Step 1: according to the actual situation, selecting suitable load characteristic, and adjust the power-factor of load；Load characteristic includes: pure
Hinder load, inductive load, pure resistance plus inductive load；Simulate the electric characteristic of load；
Step 2: according to the electric characteristic for simulating load, simulating the connection knot of route, bus, switch, transformer, power supply
Structure, and keep switch in gate-dividing state；
Step 3: being sequentially ingressed into route and compare measurement criteria unit and tested measuring equipment unit, to the voltage and current of route
It is acquired；Synchronised clock unit is accessed, when to comparing measurement criteria unit and the progress data acquisition of tested measuring equipment unit
Between synchronize；The data that tested measuring equipment unit acquires are sent to data analysis unit through high speed looped network；It is counted comparing
The data of amount standard block acquisition are sent to data analysis unit；
Step 4: the successively switch on closing line；
Step 5: data analysis unit, which obtains, to be tested measuring equipment unit and compares measurement criteria unit under different switch states
The voltage of two measurement data, the amplitude of electric current and phase under different switch states are compared, obtain tested by measurement data
Try the measurement error and electric energy error of measuring equipment；
Preferably, load characteristic is set as inductive load in the step 1, and power factor is adjusted to 0.9.
The utility model has the advantages that a kind of digitalized electric energy measuring equipment integrated test system provided by the invention and method, advantage
It is as follows:
(1) it solves existing digitalized electric energy measuring equipment detection system and method cannot combine closely equipment operation actual environment
The problem of, while can satisfy third generation intelligent substation electrical energy measurement plan-validation and equipment performance test.
(2) measuring equipment that studies for a long period of time stability.The digitalized electric energy measuring equipment integrated test system that the present invention realizes
Can longtime running, in the process of running, detection system carries out detection to each metering device in real time and comparative analysis and saves detection
As a result, it is possible to find metering misalignment and stability problem in metering device longtime running.
(3) metering performance of measuring equipment under complex working condition is simulated.The digitalized electric energy measuring equipment that the present invention realizes is comprehensive
Closing Design of Test System has various load simulating devices, analog load fluctuation, harmonic wave addition, direct current biasing, it might even be possible to mould
Intend adding the more complicated operating conditions such as lightning stroke, electrical secondary system power-up magnetic disturbance to primary system, can detect measuring equipment each
Operating condition adaptability under kind complex working condition.
(4) system-level error testing.Each meter in the digitalized electric energy measuring equipment integrated test system that the present invention realizes
Amount point be both provided with comparison measurement criteria, can the digitalized electric energy metering system to mutual inductor to digital electricity meter integrally carry out
System level testing and analysis.
(5) field failure reappears.The digitalized electric energy measuring equipment integrated test system that the present invention realizes is a reality
The simplification physical model of substation can reappear failure according to live phenomenon, be conducive to study failure cause.
(6) process-level network state verification and impact analysis.Point pair can be formed according to actual intelligent substation situation
The process-level networks forms such as point, switch network, high speed self-healing looped network, and network state is carried out by network of relation test equipment
Test and impact analysis, prove various measurement structure feasibilities.
(7) Technician Training.The digitalized electric energy measuring equipment integrated test system that the present invention realizes reduces substantially
The primary connection of practical substation and secondary electric energy metered system, can be used for measuring O&M Technician Training.
Detailed description of the invention
Fig. 1 is digitalized electric energy measuring equipment integrated test system structure chart；
Fig. 2 is the typical bridge connection figure of 110kV substation；
Fig. 3 is digitalized electric energy measuring equipment integrated test system implementation diagram.
Specific embodiment
The present invention will be further explained with reference to the accompanying drawing.
As shown in Figure 1, a kind of digitalized electric energy measuring equipment integrated test system, comprising: physical circuit element, simulation are negative
It carries, tested measuring equipment unit, compare measurement criteria unit, data transmission network, data analysis unit, synchronous clock synchronization unit；
The fictitious load is connected with physical circuit element input terminal, and the output end of physical circuit element is connected separately with tested metering
Unit, comparison measurement criteria unit are connected, and are tested measuring equipment unit output end warp, data transmission network and data point
Analysis unit input terminal is connected；The comparison measurement criteria unit is connected with data analysis unit input terminal；It is described to synchronize pair
Shi Danyuan respectively with tested measuring equipment unit, compare measurement criteria unit and be connected.
The physical circuit element is for constructing transforming plant primary route, under the specific main electrical scheme operational mode of imitating substation
The line voltage distribution and electric current of generation；
The fictitious load is used to simulate practical electric load and runs the electric characteristic having, including harmonic characteristic, amplitude Characteristics,
Behavioral characteristics etc.；
The tested measuring equipment unit indicates tested measuring equipment, including accessible existing measuring equipment and voluntarily researches and develops
Measuring equipment；
The comparison measurement criteria unit indicates accuracy of measurement two class of accuracies at least higher than tested measuring equipment unit
Measuring device, be made of high precision electric current transducer, voltage sensor, data collector etc.；
The data transmission network indicates the data networks such as Ethernet or high speed Self-healing Rings, for connecting various equipment, transmits number
Word information；
The synchronous clock synchronization unit indicates high-precision pulse per second (PPS) source or IRIG-B code source, is used for synchronous data collection device；
The data analysis unit handles all kinds of measurement data for analyzing, and calculates measurement error.
Embodiment 1:
For verifying third generation intelligent substation Electric Energy Metering Technology scheme, building digitalized electric energy measures integration test system
System, and carry out metering system performance test, specific primary connection selection is typically chiefly used in the bridge connection of 110kV substation.
As shown in Fig. 2, bridge connection uses double-bus structure, respectively I bus and II bus, double-bus is by switch K1 connection or breaks
It opens, when losing one side power supply, by another side power supply power supply.Measurement mutual inductor generally configures bus PT1(voltage transformer,
Potential transformer, PT), bus PT2, route CT1, route CT2, interior bridge CT0(current transformer, Current
Transformer, CT).
If the high-pressure side stoichiometric point in main transformer 1 arranges a set of electric energy metered system, metered scheme are as follows: 1) voltage is derived from double
Busbar voltage is arranged side by side；2) electric current line taking road CT1 and interior bridge CT0 measurement electric current and；3) data transmission uses high speed self-healing looped network；
4) data sampling is controlled by synchronization signal.
It is whether feasible in order to verify above-mentioned electrical energy measurement scheme, when synchronization loss occurs, if can also correctly measure electricity
Energy constructs digitalized electric energy measuring equipment integrated test system as shown in Figure 3:
Physical circuit element, including route, bus, switch, transformer, power supply, load, for respectively corresponding one in analogous diagram 2
Secondary device；Bus includes: bus 1, bus 2；Route includes: route 1, route 2；Switch include: switch 1, switch 2, switch 4,
Switch 5, switch 6, switch 7；Transformer includes: three-phase transformer 1, three-phase transformer 2；Power supply includes: power supply 1, power supply 2；It is negative
Load includes: adjustable fictitious load 1, adjustable fictitious load 2；Three-phase transformer 1 corresponds to the main transformer 1 in Fig. 2.
Compare measurement criteria unit, including standard CT1, standard CT2, standard CT0, standard PT, data collector 1, data
Collector 3, data collector 5.
Tested measuring equipment unit, including ECT1(electronic current mutual inductor, Electronic Current
Transformer, CT), ECT2, ECT0, PT1, PT2, data collector 2, data collector 4, data collector 6, data adopt
Storage 7, data collector 8, route MU1, route MU2, bus MU1, bus MU2, switch MU.
High speed self-healing looped network data transmission network, including high speed self-healing looped network interchanger, digitalized electrical energy meter.
The received data source of data analysis unit includes data collector 1, data collector 3, data collector 5, high speed
The output data of self-healing looped network interchanger, digitalized electrical energy meter, for analyzing the measurement error of ECT1, ECT2, ECT0, analysis to
Verify the electric energy metering error of electric energy metered system.
Clock synchronization unit issues IRIG-B code, carries out sample-synchronous to corresponding data collector by each MU.
Route 1, route 2 are connected separately on bus 1, bus 2；Bus 1 is connected with bus 2 by route 3；Route 1
One end is connected with power supply 1, and 1 other end of route is connected with adjustable fictitious load 1 by three-phase transformer 1；1 high pressure of three-phase transformer
It standard PT, is marked to switch 1, standard PT, standard CT1, ECT1, switch 2 is respectively arranged between 1 crosspoint of route 1 and bus side
Quasi- CT1 output end is connected with data collector 1 respectively, and 1 output end of data collector is connected with data analysis unit；ECT1
Output end is connected with data collector 2, and data collector 2 is connected with route MU1, and route MU1 and high speed self-healing looped network are handed over
It changes planes and is connected；Route 1 and 1 crosspoint of bus are marked to switch 3, standard CT2, ECT2, switch 4 is respectively arranged between power supply 1
Quasi- CT2 output end and data collector 3,3 output end of data collector are connected with data analysis unit；ECT2 output end and number
It is connected according to collector 4, data collector 4 is connected with route MU2, and route MU2 is connected with high speed self-healing looped network interchanger.
PT1 is provided on bus 1, PT1 output end is connected with data collector 8, data collector 8 and bus MU1, female
Line MU1 is connected with route MU1.
Switch 5, standard CT0, ECT0 are respectively arranged on route 3, standard CT0 output end is connected with data collector 5,
Data collector 5 is connected with data analysis unit；ECT0 output end is connected with data collector 6, data collector 6 with open
It closes MU to be connected, switch MU is connected with high speed self-healing looped network interchanger.
2 one end of route is connected with power supply 2, and 2 other end of route is connected with adjustable fictitious load 2 by three-phase transformer 2；Three
2 high-pressure side of phase transformer is provided with switch 7 between 2 crosspoint of route 2 and bus；Route 2 and 2 crosspoint of bus to power supply 2
Between be provided with switch 6.
PT2 is provided on bus 2, PT2 output end is connected with data collector 7, data collector 7 and bus MU2, female
Line MU2 is connected with route MU1.
The sampled value of bus MU1 and bus MU2 are sent to route MU1, and it is arranged side by side that voltage is carried out in route MU1.Route MU1,
Route MU2, switch MU data export to high speed self-healing looped network interchanger.Digitalized electrical energy meter is from high speed self-healing looped network interchanger
Measurement data is taken, emulation electric energy calculated is the electric flux of practical 1 high-pressure side stoichiometric point of main transformer.
The actual motion voltage of power supply 1 and power supply 2 is 380V power electric, and main transformer is three-phase transformer, and inlet wire is specified
Phase voltage 220V, rated current 10A, system oepration at full load power about 6.6kW, meet long-term running safety and economy
It is required that.
Using digitalized electric energy measuring equipment integrated test facility, the step of verifying to above-mentioned the digitized measurement technical solution
It is as follows:
Step 1: according to tested measuring equipment actual working environment, selecting corresponding primary connection circuit, connect physical circuit
Unit keeps switch to be in gate-dividing state；
Step 2: being sequentially ingressed into and compare measurement criteria unit and tested measuring equipment unit, synchronised clock unit is accessed, according to number
Equipment is formed into high-speed loop net according to transmission requirement；
Step 3: according to the actual situation, selecting suitable load characteristic, and adjust the power-factor of load；Load characteristic includes: pure
Load, inductive load, pure resistance plus inductive load are hindered, this example load is set as inductive load, and power factor is adjusted to 0.9；
Step 4: successively closing switch 2, switch 3, switch 4, switch 5, switch 6, switch 1, switch 7；
Step 5: by data analysis unit, analyzes tested measuring equipment unit and compare the measurement data of measurement criteria unit,
The voltage of two measurement data, the amplitude of electric current and phase are compared, obtain tested measuring equipment measurement error and
Electric energy error；
Step 6: experiment terminates, and successively disconnects switch 7, switch 1, switch 6, switch 5, switch 4, switch 3, switch 2.
If needing the performance of long-term test and measuring system, switch 7 can be disconnected, system can longtime running.
It should be understood by those skilled in the art that, embodiments herein can provide as method, system or computer program
Product.Therefore, complete hardware embodiment, complete software embodiment or reality combining software and hardware aspects can be used in the application
Apply the form of example.Moreover, it wherein includes the computer of computer usable program code that the application, which can be used in one or more,
The computer program implemented in usable storage medium (including but not limited to magnetic disk storage, CD-ROM, optical memory etc.) produces
The form of product.
The application is referring to method, the process of equipment (system) and computer program product according to the embodiment of the present application
Figure and/or block diagram describe.It should be understood that every one stream in flowchart and/or the block diagram can be realized by computer program instructions
The combination of process and/or box in journey and/or box and flowchart and/or the block diagram.It can provide these computer programs
Instruct the processor of general purpose computer, special purpose computer, Embedded Processor or other programmable data processing devices to produce
A raw machine, so that being generated by the instruction that computer or the processor of other programmable data processing devices execute for real
The device for the function of being specified in present one or more flows of the flowchart and/or one or more blocks of the block diagram.
These computer program instructions, which may also be stored in, is able to guide computer or other programmable data processing devices with spy
Determine in the computer-readable memory that mode works, so that it includes referring to that instruction stored in the computer readable memory, which generates,
Enable the manufacture of device, the command device realize in one box of one or more flows of the flowchart and/or block diagram or
The function of being specified in multiple boxes.
These computer program instructions also can be loaded onto a computer or other programmable data processing device, so that counting
Series of operation steps are executed on calculation machine or other programmable devices to generate computer implemented processing, thus in computer or
The instruction executed on other programmable devices is provided for realizing in one or more flows of the flowchart and/or block diagram one
The step of function of being specified in a box or multiple boxes.
The above is only the embodiment of the present invention, are not intended to restrict the invention, all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.
Claims (6)
1. a kind of digitalized electric energy measuring equipment integrated test system, it is characterised in that: include: physical circuit element, simulate and bear
It carries, tested measuring equipment unit, compare measurement criteria unit, data transmission network, data analysis unit, synchronous clock synchronization unit；
The physical circuit element generates under the specific main electrical scheme operational mode of imitating substation for constructing transforming plant primary route
Line voltage distribution and electric current, the line voltage distribution and electric current of substation low-voltage side be supplied to fictitious load, the on high-tension side line of substation
Road voltage and current is for tested measuring equipment unit, comparison measurement criteria unit acquisition；
The fictitious load is used to simulate practical electric load and runs the electric characteristic having, including harmonic characteristic, amplitude Characteristics,
Behavioral characteristics, to determine the line voltage distribution and electric current design parameter of substation low-voltage side；
The tested measuring equipment unit indicates tested measuring equipment, including accessible existing measuring equipment and voluntarily researches and develops
Measuring equipment, it is single to be sent to data analysis for acquiring the voltage and current of transforming plant primary route through data transmission network
Member；
The comparison measurement criteria unit indicates accuracy of measurement two class of accuracies at least higher than tested measuring equipment unit
Measuring device, be made of high precision electric current transducer, voltage sensor, data collector, for acquiring transforming plant primary line
The voltage and current on road is sent to data analysis unit；
The data transmission network indicates the data networks such as Ethernet or high speed Self-healing Rings, for connecting various equipment, transmits number
Word information；
The synchronous clock synchronization unit indicates high-precision pulse per second (PPS) source or IRIG-B code source, for synchronize tested measuring equipment unit,
Compare the data acquisition time of measurement criteria unit；
The data analysis unit is used to analyze tested measuring equipment unit and compares the measurement data of measurement criteria unit, calculates
Measurement error and electric energy error.
2. a kind of digitalized electric energy measuring equipment integrated test system according to claim 1, it is characterised in that: the object
Circuit unit is managed, including route, bus, switch, transformer, power supply, load, bus include: bus 1, bus 2；Route includes:
Route 1, route 2；Switch includes: switch 1, switch 2, switch 4, switch 5, switch 6, switch 7；Transformer includes: three phase-change pressures
Device 1, three-phase transformer 2；Power supply includes: power supply 1, power supply 2；
Load includes: adjustable fictitious load 1, adjustable fictitious load 2；
Compare measurement criteria unit, including the acquisition of standard CT1, standard CT2, standard CT0, standard PT, data collector 1, data
Device 3, data collector 5；
Tested measuring equipment unit, including ECT1, ECT2, ECT0, PT1, PT2, data collector 2, data collector 4, data
Collector 6, data collector 7, data collector 8, route MU1, route MU2, bus MU1, bus MU2, switch MU；
Data transmission network, including high speed self-healing looped network interchanger, digitalized electrical energy meter；
The received data source of data analysis unit includes data collector 1, data collector 3, data collector 5, high speed self-healing
The output data of ring exchanger, digitalized electrical energy meter is analyzed to be verified for analyzing the measurement error of ECT1, ECT2, ECT0
The electric energy metering error of electric energy metered system；
Clock synchronization unit issues IRIG-B code, carries out sample-synchronous to corresponding data collector by each MU；
Route 1, route 2 are connected separately on the bus 1, bus 2；Bus 1 is connected with bus 2 by route 3；Route 1
One end is connected with power supply 1, and 1 other end of route is connected with adjustable fictitious load 1 by three-phase transformer 1；1 high pressure of three-phase transformer
It standard PT, is marked to switch 1, standard PT, standard CT1, ECT1, switch 2 is respectively arranged between 1 crosspoint of route 1 and bus side
Quasi- CT1 output end is connected with data collector 1 respectively, and 1 output end of data collector is connected with data analysis unit；ECT1
Output end is connected with data collector 2, and data collector 2 is connected with route MU1, and route MU1 and high speed self-healing looped network are handed over
It changes planes and is connected；Route 1 and 1 crosspoint of bus are marked to switch 3, standard CT2, ECT2, switch 4 is respectively arranged between power supply 1
Quasi- CT2 output end and data collector 3,3 output end of data collector are connected with data analysis unit；ECT2 output end and number
It is connected according to collector 4, data collector 4 is connected with route MU2, and route MU2 is connected with high speed self-healing looped network interchanger；
PT1 is provided on bus 1, PT1 output end is connected with data collector 8, data collector 8 and bus MU1, bus
MU1 is connected with route MU1；
Switch 5, standard CT0, ECT0 are respectively arranged on route 3, standard CT0 output end is connected with data collector 5, data
Collector 5 is connected with data analysis unit；ECT0 output end is connected with data collector 6, data collector 6 and switch MU
It is connected, switch MU is connected with high speed self-healing looped network interchanger；
2 one end of route is connected with power supply 2, and 2 other end of route is connected with adjustable fictitious load 2 by three-phase transformer 2；Three phase transformations
2 high-pressure side of depressor is provided with switch 7 between 2 crosspoint of route 2 and bus；Route 2 and 2 crosspoint of bus are between power supply 2
It is provided with switch 6；
PT2 is provided on bus 2, PT2 output end is connected with data collector 7, data collector 7 and bus MU2, bus
MU2 is connected with route MU1；
The sampled value of bus MU1 and bus MU2 are sent to route MU1, and it is arranged side by side that voltage is carried out in route MU1；Route MU1, route
MU2, switch MU data export to high speed self-healing looped network interchanger；Digitalized electrical energy meter takes survey from high speed self-healing looped network interchanger
Data are measured, emulation electric energy calculated is the electric flux of practical 1 high-pressure side stoichiometric point of main transformer.
3. a kind of digitalized electric energy measuring equipment integrated test system according to claim 2 and method, it is characterised in that:
The actual motion voltage of the power supply 1 and power supply 2 is 380V power electric.
4. a kind of digitalized electric energy measuring equipment integrated test system according to claim 2 and method, it is characterised in that:
The inlet wire specified phase voltage 220V of the three-phase transformer 1 and three-phase transformer 2, rated current 10A, system oepration at full load function
Rate 6.6kW, for meeting long-term running safety and cost-effectiveness requirement.
5. a kind of test method of integrated test system, characterized by the following steps:
Step 1: according to the actual situation, selecting suitable load characteristic, and adjust the power-factor of load；Load characteristic includes: pure
Hinder load, inductive load, pure resistance plus inductive load；Simulate the electric characteristic of load；
Step 2: according to the electric characteristic for simulating load, simulating the connection knot of route, bus, switch, transformer, power supply
Structure, and keep switch in gate-dividing state；
Step 3: being sequentially ingressed into route and compare measurement criteria unit and tested measuring equipment unit, to the voltage and current of route
It is acquired；Synchronised clock unit is accessed, when to comparing measurement criteria unit and the progress data acquisition of tested measuring equipment unit
Between synchronize；The data that tested measuring equipment unit acquires are sent to data analysis unit through high speed looped network；It is counted comparing
The data of amount standard block acquisition are sent to data analysis unit；
Step 4: the successively switch on closing line；
Step 5: data analysis unit, which obtains, to be tested measuring equipment unit and compares measurement criteria unit under different switch states
The voltage of two measurement data, the amplitude of electric current and phase under different switch states are compared, obtain tested by measurement data
Try the measurement error and electric energy error of measuring equipment.
6. a kind of test method of integrated test system according to claim 5, it is characterised in that: born in the step 3
Load featured configuration is inductive load, and power factor is adjusted to 0.9.
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