CN103630871B - Electronic electric energy meter dynamic characteristic test device - Google Patents
Electronic electric energy meter dynamic characteristic test device Download PDFInfo
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- CN103630871B CN103630871B CN201310659769.XA CN201310659769A CN103630871B CN 103630871 B CN103630871 B CN 103630871B CN 201310659769 A CN201310659769 A CN 201310659769A CN 103630871 B CN103630871 B CN 103630871B
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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
Abstract
The invention provides a kind of electronic electric energy meter dynamic characteristic test device, including single-chip microcomputer, programmable logic controller (PLC) part, voltage current transformer, signal sample circuit, silicon controlled control circuit, pulse shaper, pulse-scaling circuit and liquid crystal display circuit；Three-phase steady state voltage current signal, after voltage current transformer and signal sample circuit, generates the control signal with three-phase steady state voltage same frequency；PLD control signal sends silicon controlled control circuit to；Silicon controlled control circuit produces three phase dynamic power and exports to outside tested electric energy meter；Outside tested electric energy meter draws energy value according to measurement, and exports electrical energy pulse and be transferred to single-chip microcomputer；Single-chip microcomputer calculates the dynamic error of tested electric energy meter.The electronic electric energy meter dynamic characteristic test device of the embodiment of the present invention, it is achieved electric energy meter is the measurement of meter characteristic under dynamic load；Disclose the test of electronic electric energy meter dynamic error characteristic starting characteristic under various dynamic load patterns.
Description
Technical field
The present invention relates to electric energy meter field tests, particularly relate to the dynamic characteristic test device of a kind of electronic electric energy meter.
Background technology
In recent years, along with in modern power systems, dynamic load is continuously increased, dynamic load power consumer causes electric energy meter
The problem that value reduces becomes increasingly to highlight with important, and the electric energy meter to onsite application, in the urgent need to testing its electric energy
The dynamic characteristic of metering.Therefore, the test of the dynamic characteristic of electric energy meter becomes new problem urgently to be resolved hurrily.
In order to determine electric energy meter dynamic error characteristic in actual applications, most efficient method is in reality by electric energy meter
Test under electrical network operating mode.But the electric current of dynamic load and power factor acute variation, make electricity under actual electric network operating mode
The test and excitation signal of energy table does not have controllability, and from the perspective of meterological, the measurement of electric energy meter dynamic error is not
There is repeatability, be unable to the dynamic error characteristic repeating to contrast electric energy meter.
Summary of the invention
For the problems referred to above, the embodiment of the present invention provides a kind of electronic electric energy meter dynamic characteristic test device, to solve
Existing electric energy meter dynamic characteristic test problem.
In order to achieve the above object, the embodiment of the present invention provides a kind of electronic electric energy meter dynamic characteristic test device, bag
Include single-chip microcomputer, programmable logic controller (PLC) part, voltage current transformer, signal sample circuit, silicon controlled control circuit,
Pulse shaper, pulse-scaling circuit and liquid crystal display circuit；Wherein, described voltage current transformer connects institute
Stating signal sample circuit, described signal sample circuit connects described programmable logic controller (PLC) part, described FPGA
Controlling device and connect described silicon controlled control circuit, described pulse shaper connects described pulse-scaling circuit, described
Programmable logic controller (PLC) part, pulse-scaling circuit and liquid crystal display circuit all connect described single-chip microcomputer；Outside input
Three-phase voltage current signal after described voltage current transformer and signal sample circuit, generate steady with described three-phase
The control signal of state voltage same frequency；Described programmable logic controller (PLC) part receives described control signal, and control is described can
Control silicon control circuit；Described silicon controlled control circuit produces dynamic power and exports to outside tested electric energy meter；Described outside
Tested electric energy meter draws energy value according to described dynamic power measurement, and exports electrical energy pulse, through described shaping pulse
After circuit carries out shaping filter, it is transferred to described pulse-scaling circuit；Described pulse-scaling circuit is tested to described outside
After the electrical energy pulse of electric energy meter output counts, send described single-chip microcomputer to；Described single-chip microcomputer gathers standard electric energy meter
Output pulse, calculate the dynamic error of described tested electric energy meter；Described liquid crystal display circuit be used for showing described dynamically
Error.
Further, in one embodiment, described signal sample circuit is for being transformed to analogue signal for controlling
The digital signal of journey.
Further, in one embodiment, described programmable logic controller (PLC) part is CPLD XC9536.
Further, in one embodiment, described single-chip microcomputer is SST89E516RD2 chip.
Further, in one embodiment, described test device also includes power module, is connected to described able to programme patrol
Collect and control device and single-chip microcomputer, be used for providing power supply.
Further, in one embodiment, described test device also includes watchdog circuit, is connected to described single-chip microcomputer,
Reset for described single-chip microcomputer.
The electronic electric energy meter dynamic characteristic test device of the embodiment of the present invention, sets up and uses CPLD control to create dynamic
State Road test pumping signal, it is achieved electric energy meter is the measurement of meter characteristic under dynamic load；Use the dress of exploitation design
Put, build electric energy meter and carry out dynamic characteristic test, disclose electronic electric energy meter moving under various dynamic load patterns
The test of state error characteristics starting characteristic.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only
It is some embodiments of the present invention, for those skilled in the art, on the premise of not paying creative work,
Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the electronic electric energy meter dynamic characteristic test device of the embodiment of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Describe, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole embodiments wholely.
Based on the embodiment in the present invention, those of ordinary skill in the art are obtained under not making creative work premise
Every other embodiment, broadly falls into the scope of protection of the invention.
Fig. 1 is the structural representation of the electronic electric energy meter dynamic characteristic test device of the embodiment of the present invention.As schemed
Showing, described test device includes single-chip microcomputer 1, programmable logic controller (PLC) part 2, voltage current transformer 3, signal
Sample circuit 4, silicon controlled control circuit 5, pulse shaper 6, pulse-scaling circuit 7 and liquid crystal display electricity
Road 8；Wherein,
Described voltage current transformer 3 connects described signal sample circuit 4, and described signal sample circuit 4 connects described
Programmable logic controller (PLC) part 2, described programmable logic controller (PLC) part 2 connects described silicon controlled control circuit 5, institute
State pulse shaper 6 and connect described pulse-scaling circuit 7, described programmable logic controller (PLC) part 2, step-by-step counting
Circuit 7 and liquid crystal display circuit 8 all connect described single-chip microcomputer 1.
The three-phase steady state voltage current signal of outside input is through described voltage current transformer 3 and signal sample circuit 4
After, generate the control signal with described three-phase steady state voltage same frequency；Described programmable logic controller (PLC) part 2 receives institute
State control signal, control described silicon controlled control circuit 5；Described silicon controlled control circuit 5 produces dynamic power output
To outside tested electric energy meter；Dynamic power measurement described in the tested electric energy meter in described outside draws energy value, and exports electric energy
Pulse, after described pulse shaper 6 carries out shaping filter, is transferred to described pulse-scaling circuit 7；Described
After the electrical energy pulse of pulse-scaling circuit 7 electric energy meter tested to described outside output counts, send described monolithic to
Machine 1；Described single-chip microcomputer 1 gathers the output pulse of standard electric energy meter, calculates the dynamic error of described tested electric energy meter；
Described liquid crystal display circuit 8 is used for showing described dynamic error.
In the present embodiment, described signal sample circuit 4 for being transformed to the numeral for controlling process by analogue signal
Signal.
In the present embodiment, described programmable logic controller (PLC) part 2 is CPLD XC9536.
In the present embodiment, described single-chip microcomputer 1 is SST89E516RD2 chip.
In the present embodiment, described test device also includes watchdog circuit 9, is connected to described single-chip microcomputer 1, is used for
The reset of described single-chip microcomputer 1.
In the present embodiment, described test device also includes power module 10, is connected to described programmable logic controller (PLC)
Part 2 and single-chip microcomputer 1, be used for providing power supply.
When utilizing above-mentioned electric energy meter dynamic characteristic test device to carry out error testing, first have to set up dynamic load electricity
The mathematical model of energy train excitation, carries out the measurement of dynamic error on this basis.In the present invention, OOK is used
(On-Off-Key) steady state current signals is converted to dynamic load current signal by break-make control mode, and, use
Electric energy train excitation mode calculates the dynamic load electric energy of electric energy meter, and above-mentioned computational methods belong to those skilled in the art institute
Known to, therefore the present invention repeats no more.
The electronic electric energy meter dynamic characteristic test device of the embodiment of the present invention, sets up and uses CPLD control to create dynamic
State Road test pumping signal, it is achieved the dynamic characteristic measuring of electric energy meter；Use the device of exploitation design, build experiment
Platform, carries out dynamic error test to electric energy meter, discloses electronic electric energy meter moving under various dynamic load patterns
The performance of state error.
The present invention applies specific embodiment principle and the embodiment of the present invention are set forth, above example
Explanation be only intended to help to understand method and the core concept thereof of the present invention；General technology simultaneously for this area
Personnel, according to the thought of the present invention, the most all will change, in sum,
This specification content should not be construed as limitation of the present invention.
Claims (6)
1. an electronic electric energy meter dynamic characteristic test device, it is characterised in that described test device includes monolithic
Machine, programmable logic controller (PLC) part, voltage current transformer, signal sample circuit, silicon controlled control circuit, pulse
Shaping circuit, pulse-scaling circuit and liquid crystal display circuit；Wherein,
Described voltage current transformer connects described signal sample circuit, and described signal sample circuit connects described able to programme
Logic control device, described programmable logic controller (PLC) part connects described silicon controlled control circuit, described shaping pulse electricity
Road connects described pulse-scaling circuit, described programmable logic controller (PLC) part, pulse-scaling circuit and liquid crystal display electricity
Road all connects described single-chip microcomputer；
The three-phase voltage current signal of outside input, after described voltage current transformer and signal sample circuit, generates
Control signal with described three-phase steady state voltage same frequency；
Described programmable logic controller (PLC) part receives described control signal, controls described silicon controlled control circuit；
Described silicon controlled control circuit produces dynamic power and exports to outside tested electric energy meter；
The tested electric energy meter in described outside draws energy value according to described dynamic power measurement, and exports electrical energy pulse, passes through
After described pulse shaper carries out shaping filter, it is transferred to described pulse-scaling circuit；
After the electrical energy pulse of described pulse-scaling circuit electric energy meter tested to described outside output counts, send institute to
State single-chip microcomputer；
Described single-chip microcomputer gathers the output pulse of standard electric energy meter, calculates the dynamic error of described tested electric energy meter；
Described liquid crystal display circuit is used for showing described dynamic error；
Wherein, when utilizing described electronic electric energy meter dynamic characteristic test device to carry out error testing, dynamic including setting up
The mathematical model of state load electric energy train excitation, carries out the measurement of dynamic error on this basis, also includes using OOK
Steady state current signals is converted to dynamic load current signal by break-make control mode, and uses electric energy train excitation mode
Calculate the dynamic load electric energy of electric energy meter.
Electronic electric energy meter dynamic characteristic test device the most according to claim 1, it is characterised in that described
Signal sample circuit for being transformed to the digital signal for controlling process by analogue signal.
Electronic electric energy meter dynamic characteristic test device the most according to claim 1, it is characterised in that described
Programmable logic controller (PLC) part is CPLD XC9536.
Electronic electric energy meter dynamic characteristic test device the most according to claim 1, it is characterised in that described
Single-chip microcomputer is SST89E516RD2 chip.
Electronic electric energy meter dynamic characteristic test device the most according to claim 1, it is characterised in that described
Test device also includes power module, is connected to described programmable logic controller (PLC) part and single-chip microcomputer, is used for providing power supply.
Electronic electric energy meter dynamic characteristic test device the most according to claim 1, it is characterised in that described
Test device also includes watchdog circuit, is connected to described single-chip microcomputer, for the reset of described single-chip microcomputer.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659769.XA CN103630871B (en) | 2013-12-09 | 2013-12-09 | Electronic electric energy meter dynamic characteristic test device |
| PCT/CN2014/089176 WO2015085830A1 (en) | 2013-12-09 | 2014-10-22 | Apparatus for testing dynamic characteristics of electronic energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310659769.XA CN103630871B (en) | 2013-12-09 | 2013-12-09 | Electronic electric energy meter dynamic characteristic test device |
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| Publication Number | Publication Date |
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| CN103630871A CN103630871A (en) | 2014-03-12 |
| CN103630871B true CN103630871B (en) | 2016-08-17 |
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| CN201310659769.XA Active CN103630871B (en) | 2013-12-09 | 2013-12-09 | Electronic electric energy meter dynamic characteristic test device |
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| CN (1) | CN103630871B (en) |
| WO (1) | WO2015085830A1 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103630871B (en) * | 2013-12-09 | 2016-08-17 | 国家电网公司 | Electronic electric energy meter dynamic characteristic test device |
| CN104345294B (en) * | 2014-11-04 | 2017-09-29 | 国家电网公司 | A kind of electric energy meter dynamic performance and testing |
| CN106093828A (en) * | 2016-05-27 | 2016-11-09 | 国网天津市电力公司 | Rapid batch Basic Error of Energy Meter test calibration method |
| CN106054107A (en) * | 2016-05-27 | 2016-10-26 | 国网天津市电力公司 | Fast batch electric energy meter false actuation test device pulse alignment control module |
| CN105911509A (en) * | 2016-05-27 | 2016-08-31 | 国网天津市电力公司 | Rapid batch watt-hour meter starting test device pulse alignment control module |
| CN106054109A (en) * | 2016-05-27 | 2016-10-26 | 国网天津市电力公司 | Fast and batched electric energy meter start-up test method |
| CN106443169A (en) * | 2016-09-29 | 2017-02-22 | 国网四川省电力公司电力科学研究院 | Circuit and method for improving overall metering performance of energy metering device of power distribution network |
| CN106405477B (en) * | 2016-10-13 | 2023-11-24 | 国网冀北电力有限公司电力科学研究院 | Evaluation method and device for metering performance under dynamic load |
| CN106501755A (en) * | 2016-10-18 | 2017-03-15 | 国网山东省电力公司烟台供电公司 | A kind of intelligent electric energy meter dynamic error measuring method based on dynamic load model |
| CN107861091B (en) * | 2017-10-23 | 2019-12-06 | 国网江西省电力公司电力科学研究院 | Dynamic performance tracing method based on dynamic electric energy calibrator |
| CN108363033A (en) * | 2018-02-09 | 2018-08-03 | 国网山西省电力公司长治供电公司 | Intelligent substation metering secondary metering device composition error off-line measurement system |
| CN108717172A (en) * | 2018-04-13 | 2018-10-30 | 中国电力科学研究院有限公司 | A kind of mutual inductor dynamic error test system and method |
| CN110531299B (en) * | 2018-05-23 | 2021-01-01 | 北京化工大学 | Compressed sensing indirect measurement method for electric energy value of electric energy meter dynamic test signal |
| CN111190134A (en) * | 2019-12-26 | 2020-05-22 | 国网江西省电力有限公司电力科学研究院 | Electric energy meter dynamic response time characteristic test method and calibration device |
| CN114002643A (en) * | 2021-11-25 | 2022-02-01 | 国网北京市电力公司 | Electric energy meter detection method and device, electronic equipment and computer readable storage medium |
| CN116500536A (en) * | 2023-04-14 | 2023-07-28 | 南京丹迪克电力仪表有限公司 | Method for electric energy meter direct current and even harmonic influence test and alternating current-direct current electric energy meter testing device |
| CN117110977B (en) * | 2023-10-25 | 2024-03-01 | 国网浙江省电力有限公司营销服务中心 | Electric energy meter error assessment method and system |
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| CN103630871B (en) * | 2013-12-09 | 2016-08-17 | 国家电网公司 | Electronic electric energy meter dynamic characteristic test device |
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2014
- 2014-10-22 WO PCT/CN2014/089176 patent/WO2015085830A1/en active Application Filing
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| CN101526596A (en) * | 2009-04-21 | 2009-09-09 | 郑州万特电气有限公司 | Measuring method for energy metering error of single-phase electric energy meter under dynamic load |
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| CN203572959U (en) * | 2013-12-09 | 2014-04-30 | 国家电网公司 | Electronic electric energy meter dynamic characteristic testing device |
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| Publication number | Publication date |
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| CN103630871A (en) | 2014-03-12 |
| WO2015085830A1 (en) | 2015-06-18 |
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Address after: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee after: North China Electric Power Research Institute Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: BEIJING University OF CHEMICAL TECHNOLOGY Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: North China Electric Power Research Institute Co.,Ltd. Patentee before: State Grid Corporation of China Co-patentee before: BEIJING University OF CHEMICAL TECHNOLOGY |
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Effective date of registration: 20200616 Address after: 102208 opposite to the north gate of Beijing Renjia community, erpuzi, Huilongguan, Changping District, Beijing Co-patentee after: BEIJING University OF CHEMICAL TECHNOLOGY Patentee after: STATE GRID JIBEI ELECTRIC POWER Co.,Ltd. Co-patentee after: NORTH CHINA ELECTRIC POWER RESEARCH INSTITUTE Co.,Ltd. Co-patentee after: STATE GRID CORPORATION OF CHINA Co-patentee after: STATE GRID JIBEI ELECTRIC POWER Co.,Ltd. Address before: 100031 Xicheng District West Chang'an Avenue, No. 86, Beijing Co-patentee before: North China Electric Power Research Institute Co.,Ltd. Patentee before: STATE GRID CORPORATION OF CHINA Co-patentee before: BEIJING University OF CHEMICAL TECHNOLOGY |