CN206489269U - A kind of electric energy meter electromagnetic compatibility immunity automatization test system - Google Patents
A kind of electric energy meter electromagnetic compatibility immunity automatization test system Download PDFInfo
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- CN206489269U CN206489269U CN201720159577.6U CN201720159577U CN206489269U CN 206489269 U CN206489269 U CN 206489269U CN 201720159577 U CN201720159577 U CN 201720159577U CN 206489269 U CN206489269 U CN 206489269U
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Abstract
The utility model is related to a kind of electric energy meter electromagnetic compatibility immunity automatization test system, electromagnetic compatibility immunity performance to automatic test electric energy meter, the system includes host computer, test main frame, electromagnetic compatibility immunity and occurs test device and tester, and described test main frame occurs test device with host computer, electromagnetic compatibility immunity respectively and tester communicates.Compared with prior art, the utility model has the advantages that measuring accuracy height, test scope are wide.
Description
Technical field
The utility model is related to electric energy meter electromagnetic compatibility immunity testing field, simultaneous more particularly, to a kind of electric energy meter electromagnetism
Hold immunity to interference automatization test system.
Background technology
The industry that China's civilian goods Electro Magnetic Compatibility test is carried out earliest is intelligent electric meter industry, and the project is also obtained
The attention of Guo Wang companies and promote energetically, electromagnetic compatibility test is a frontier branch of science, be an applied science, it is necessary to by electromagnetism
Compatible professional test technology and specific test product characteristic, which are merged, can just obtain optimal test effect, and this point is in intelligence
Energy ammeter electromagnetic compatibility test field seems especially prominent.Because many be engaged in Electromagnetic Compatibity Test Technology research and test equipment
Production firm often focuses more on electromagnetic compatibility test in itself, is not familiar with electric energy meter product from electromagnetic compatibility test process
In unique technical characteristic for showing and test request, be limited by the reason of matching and the professional technique requirement of hardware device
Solution, so causing the technological incorporation of these two aspects to never have very big progress, even if this point is also in this way, especially abroad
It is stressed that intelligent electric meter is China compares a leading product scope in the world, if technical research in this respect
It has breakthrough, is also that comparison is representational in the world.
It is ammeter that foreign countries, which also only rest on ammeter, at present, and electromagnetic compatibility test is electromagnetic compatibility test field, but electric energy meter
International standard propose requirement to the fusion of this test, but be limited by the limit in terms of professional technique and hardware product characteristic
Value, only indivedual electric instrument manufacturers voluntarily carry out the fragmentary technology exploration of this respect according to electric energy meter test request, domestic
Manufacturer is also in such a state, therefore the research of electric energy meter electromagnetic compatibility immunity automatization testing technique is not only letter
The combination of single software and hardware, is even more by the Electromagnetic Compatibity Test Technology of specialty and the intelligence of specialty in electric energy meter performance detection field
The process that ammeter measuring technology is blended.
The electromagnetic compatible protective problem of error metric system is ammeter electricity in electric energy meter electromagnetic compatibility immunity test process
The problem of can not avoiding in magnetic compatibility automatic test technology research, because not only to be realized to equipment in automatic testing process
Automatically control, more to carry out associated precision measurement equipment electromagnetic protection work, in particular for the calibration of electric energy metrical
The electromagnetic protection of system.
Current electric energy meter manufacturing enterprise and electric energy meter inspection center, according to GB17215, GB/T17883, GB/
When T18460.3 requirements carry out electrical fast transient (eft) immunity to interference performance test to electronic electric energy meter, because needing to test simultaneously
The margin of error taken temperature is measured and tester for electric energy meter must be used, the above-mentioned type interference signal simultaneously can be to calibration
Device produces interference and causes experiment not to be smoothed out, and the problem largely annoyings being normally carried out for test.
Utility model content
The purpose of this utility model is exactly the defect in order to overcome above-mentioned prior art presence and provides a kind of measuring accuracy
The wide electric energy meter electromagnetic compatibility immunity automatization test system of high, test scope.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of electric energy meter electromagnetic compatibility immunity automatization test system, the electromagnetic compatibility to automatic test electric energy meter resists
Degree of disturbing performance, the system includes host computer, test main frame, electromagnetic compatibility immunity and occurs test device and tester, described
Test main frame occur test device and tester with host computer, electromagnetic compatibility immunity respectively and communicate.
Test device, which occurs, for described electromagnetic compatibility immunity includes test stage body and interferance generator, described testboard
Electric energy meter to be tested is placed with body, and electric energy meter to be tested is connected by testing the terminal plate on stage body with tester
Connect, described interferance generator is connected with test main frame.
The interference signal that described interferance generator is sent includes static discharge interference signal, pulse-burst signals, surge
Signal, Conducted Radio Frequency signal, radio-frequency radiation signal, power frequency magnetic field signal, damp oscillatory wave and Voltage Drop signal.
Described test main frame is communicated by RS232 interfaces or Ethernet interface with interferance generator.
Described test main frame is communicated by RS485 interfaces or GPIB488 interfaces with tester.
Described tester is 0.05 grade of three-phase list range normal power electric energy meter.
Filtering decoupling module is serially connected with wiring between described electric energy meter to be tested and tester.
Compared with prior art, the utility model has advantages below：
First, measuring accuracy is high：The utility model in the wiring between electric energy meter and tester to be tested by going here and there
Filtering decoupling module is connected to, is eliminated in experimentation, the interference signal that interferance generator is sent is to normal power electric energy meter essence
The influence of degree, has effectively purified the test environment of normal power electric energy meter precision, can normally run, it is ensured that test
Reliability.
2nd, test scope is wide：Interferance generator of the present utility model can send eight kinds of different test interference signals, energy
The requirement of the whole test environments of electric energy meter electromagnetic compatibility immunity test is enough adapted to, electrical fast transient (eft) immunity to interference is met
Experiment, decay Sasser immunity to interference, the conducted immunity of radiofrequency field sensing, the experiment of radio frequency electromagnetic field radiation immunity influence amount etc.
Experiment demand.
Brief description of the drawings
Fig. 1 is system structure diagram of the present utility model.
Wherein, 1, host computer, 2, test main frame, 3, electromagnetic compatibility immunity occur test device, 4, tester, 31,
Interferance generator, 32, test stage body, 5, electric energy meter to be tested.
Embodiment
The utility model is described in detail with specific embodiment below in conjunction with the accompanying drawings.
Embodiment：
As shown in figure 1, figure is system structure diagram of the present utility model.
In order to be able to farthest ensure the correctness of automatic detection result and the reasonability of detection logic, in design
Need in strict accordance with manual testing framework result and testing process, while take into account the requirement of different testing requirements and convenient extension,
The design of test technique automatic should follow uniformity, the comprehensive and big principle of operability three.
(1) consistency principle
The consistency principle refers to that acquisition terminal automatic test can should effectively carry out manual testing close to manual testing's method
Shi Suoyou test event and test request, automatic test was tested merely by automatic flow instead of repeater's work
Journey, its test result should be consistent with artificial test results.
(2) comprehensive principle
Comprehensive principle refers to that test technique automatic allows for meeting the requirement of each class testing, compatible electric energy meter comprehensively
The functional test of meter correcting system, while disclosure satisfy that the functional test under different application occasion.
(3) operability principle
Operability principle refers to that the design of test technique automatic is considered as economic, reasonable, safety, expansible principle,
Based on actual conditions, carry out corresponding experiment under prior art equipment, examination criteria is worked as in the flexibility of compatible detection scheme
It is easy to extend test function during change.
System hardware framework of the present utility model should be based on possessing the items electricity that host computer interface and can realizing is automatically controlled
The test system of magnetic compatibility immunity to interference test and possesses control interface and the tester system of data transmission interface is set
Meter, total system occurs test device 3, high-precision tester 4 by host computer 1, main frame 2, electromagnetic compatibility immunity and constituted.It is upper
Machine 1 is realized to electromagnetic compatibility immunity test device 3, the automatically controlling of high-precision tester 4 by host computer 2, tested
Data acquisition and the function of test result analysis, interferance generator require to generate different types of interference characteristic according to standard, high
Precision tester 4 carries out the automatic data collection of the data of error precision to operating electric energy meter.Main frame 2 is filled with high-precision calibration
RS232 mouths and Ethernet interface that communication between 4 passes through stage body are put, main frame 2 and electromagnetic compatibility immunity occur between test device 3
Communication passes through the RS485 interface or GPIB488 interfaces between system.
Test system of the present utility model must is fulfilled for IEC61000-4-X and GB/T17626.X on technical performance index
The technical requirements of family of standards standard, while need to be with good expansibility and test completeness, can be with extraordinary correspondence
Electric energy meter needs electromagnetic compatibility immunity test event and the requirement tested, and its function is related to esd immunity, arteries and veins
Rush group's immunity to interference, surge immunity, Conducted Radio Frequency Immunity, radio-frequency radiation immunity to interference (gtem cell method), power frequency magnetic field anti-interference
The immunity to interference test event that the whole electric energy meters such as degree, damp oscillatory wave immunity to interference, Voltage Drop immunity to interference need, and correlation matches somebody with somebody
Set is multiple functional, and system provides Function Extension, host computer interface by modular combination and provides the system-level work(of completion that interconnects
It can integrate, be convenient for the research and realization of electric energy meter immunity to interference test automation technology.
The automatic meter reading system is to be directed to the demand of electric energy meter type approval test and design, according to GB/
T17215.211-2006《Exchange the experiment of electrical measuring device General Requirement and the part of experimental condition the 11st：Measuring apparatus》In 7.5 electricity
Magnetic compatibility (EMC), is mainly used in electric energy meter and does the electrical fast transient (eft) immunity experiment of EMC electromagnetic compatibilities, decay shake
Ripple immunity to interference, the conducted immunity of radiofrequency field sensing are swung, radio frequency electromagnetic field radiation immunity influence amount experiment etc. is tested, and device is full
It is enough the related request in lower standard and code：
GB/T 17883-1999(IEC60687-1992)《0.2S grades exchange active electric energy meter with 0.5S grades of state types》GB/
T15284-2002《Multi-rate electric energy meter particular/special requirement》
JJG597-2006《AC energy meter calibrating is put》
JJG596-1999《Electronic electric energy meter》
JJG307-1988《AC energy meter》
GB/T 17215.211-2006
《Exchange the experiment of electrical measuring device General Requirement and the part of experimental condition the 11st：Measuring apparatus》
The composition of the system is：
A. three-phase tests power supply
The experimental rig meets the related request of 0.1 grade of equipment for three-phase electrical energy meter, and satisfaction does EMC electromagnetism to electric energy meter
Electrical fast transient (eft) immunity experiment, decay Sasser immunity to interference, the conducted immunity of radiofrequency field sensing, radio frequency of compatibility
The experiments such as electromagnetic field radiation immunity influence amount experiment, power supply can provide to normal reliable voltage, current signal.Device can be carried
For 150 volt-amperes of test voltage signal and 180 volt-amperes of test current signals.
B. standard scale
0.05 grade of three-phase list range normal power electric energy meter built in device is there is provided standard electric energy, and it is aobvious to provide supervisory instrument
Voltage, electric current, phase, power for showing etc..
C. Error Calculator
Device includes three Error Calculators, can receive three tunnels by electrical energy impulse signals of taking temperature, carry out various experiments
When, it is synchronous carry out electric energy error calculating (taken temperature send correct electrical energy pulse under conditions of).
D. each input of device, output loop is provided with filtering decoupling unit, can be normal when doing immunity experiment
Test signal is provided, isolation filter is provided with electrical energy pulse collection, and can synchronous calculation error.
E. device is provided with RS232 interfaces by computer control.The class of accuracy of device：0.1 grade
Testing scheme of the present utility model and realization
Integral Thought is to carry out subitem differentiation, big frame according to the difference in functionality and function part that are related in test process
Respectively interference applies control control section, error precision control and collecting part, data analysis and summary part, then passes through
Certain algorithm and control flow organically combines above three part, completes the requirement all tested automatically.
Interference applies control
This part relates separately to eight experimental projects of standard gauge regular inspection survey, and the test request of each project is both needed to meet phase
Test request as defined in the standard of pass, using block combiner, is uniformly controlled control framework, is easy to be extended according to the requirement of experiment from now on
Testing scheme can be further expanded.
Test event link control can be carried out between these projects as needed, you can be optionally combined test needs, not only
Test event can be optionally combined, test condition can be also optionally combined.
Test event testing process assembling structure is designed
Test event testing process need to carry out the integration of system to the test event being related to, and the process of integration passes through software control
System is realized, because the testing sequence requirement that the project of electromagnetic compatibility test is not fixed, therefore whole operation interface is except needing
Outside the integrality for embodying test, it is necessary to embody maximum flexibility ratio.
Testing process and actual demand of the utility model from the standard requirement of electric energy meter electromagnetic compatibility immunity, grind
Study carefully its feasibility for realizing automatization testing technique, and the software and hardware being related to this problem by actual techniques development tool is automatic
Change detection technique and testing process is studied and realized, the technologies that many puzzlement electric energy meters tests are also solved during being somebody's turn to do are asked
Topic, the error of the anti-interference protection question of such as calibration guard system, the Phase synchronization problem, meter of external magnetic field test under interference
A series of technical barriers such as precision acquisition problem.
The utility model also has good social benefit and economic benefit simultaneously.The country solve first electric energy meter according to
GB17215 standards carry out the tester protection question encountered during complete electromagnetic compatibility test；First from achievable angle
The feasibility of the automatic test in electric energy meter electromagnetic compatibility test field is inquired into, the automatic test of some projects, pole is realized
The earth improves testing efficiency and the degree of accuracy, saves a large amount of costs of labor.
Claims (7)
1. a kind of electric energy meter electromagnetic compatibility immunity automatization test system, the electromagnetic compatibility anti-interference to automatic test electric energy meter
Spend performance, it is characterised in that the system includes host computer (1), test main frame (2), electromagnetic compatibility immunity and occurs test device
(3) and tester (4), with host computer (1), electromagnetic compatibility immunity test device occurs for described test main frame (2) respectively
(3) communicated with tester (4).
2. a kind of electric energy meter electromagnetic compatibility immunity automatization test system according to claim 1, it is characterised in that institute
Test device (3), which occurs, for the electromagnetic compatibility immunity stated includes putting on test stage body and interferance generator, described test stage body
Electric energy meter to be tested is equipped with, and electric energy meter to be tested is connected by testing the terminal plate on stage body with tester (4), institute
The interferance generator stated is connected with test main frame (2).
3. a kind of electric energy meter electromagnetic compatibility immunity automatization test system according to claim 2, it is characterised in that institute
The interference signal that the interferance generator stated is sent includes static discharge interference signal, pulse-burst signals, surging signal, radio frequency and passed
Lead signal, radio-frequency radiation signal, power frequency magnetic field signal, damp oscillatory wave and Voltage Drop signal.
4. a kind of electric energy meter electromagnetic compatibility immunity automatization test system according to claim 2, it is characterised in that institute
The test main frame (2) stated is communicated by RS232 interfaces or Ethernet interface with interferance generator (31).
5. a kind of electric energy meter electromagnetic compatibility immunity automatization test system according to claim 1, it is characterised in that institute
The test main frame (2) stated is communicated by RS485 interfaces or GPIB488 interfaces with tester (4).
6. a kind of electric energy meter electromagnetic compatibility immunity automatization test system according to claim 1, it is characterised in that institute
The tester (4) stated is 0.05 grade of three-phase list range normal power electric energy meter.
7. a kind of electric energy meter electromagnetic compatibility immunity automatization test system according to claim 2, it is characterised in that institute
Filtering decoupling module is serially connected with wiring between the electric energy meter to be tested and tester (4) stated.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707223A (en) * | 2017-02-22 | 2017-05-24 | 国网上海市电力公司 | Electric energy meter electromagnetic compatibility immunity automatic test system |
| CN107797086A (en) * | 2017-10-25 | 2018-03-13 | 云南电网有限责任公司电力科学研究院 | A kind of power equipment verification system and method |
| CN108594159A (en) * | 2018-02-12 | 2018-09-28 | 国网浙江省电力有限公司电力科学研究院 | A kind of intelligent electric energy meter sampling full-automatic result of performance test judges system |
| CN109039832A (en) * | 2018-09-29 | 2018-12-18 | 安徽众家云物联网科技有限公司 | A kind of intelligent appliance communication reliability test method |
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2017
- 2017-02-22 CN CN201720159577.6U patent/CN206489269U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707223A (en) * | 2017-02-22 | 2017-05-24 | 国网上海市电力公司 | Electric energy meter electromagnetic compatibility immunity automatic test system |
| CN107797086A (en) * | 2017-10-25 | 2018-03-13 | 云南电网有限责任公司电力科学研究院 | A kind of power equipment verification system and method |
| CN108594159A (en) * | 2018-02-12 | 2018-09-28 | 国网浙江省电力有限公司电力科学研究院 | A kind of intelligent electric energy meter sampling full-automatic result of performance test judges system |
| CN109039832A (en) * | 2018-09-29 | 2018-12-18 | 安徽众家云物联网科技有限公司 | A kind of intelligent appliance communication reliability test method |
| CN109039832B (en) * | 2018-09-29 | 2022-04-15 | 安徽众家云物联网科技有限公司 | Intelligent household electrical appliance communication reliability testing method |
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