CN203798999U - System for testing power quality monitoring equipment - Google Patents
System for testing power quality monitoring equipment Download PDFInfo
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- CN203798999U CN203798999U CN201320800336.7U CN201320800336U CN203798999U CN 203798999 U CN203798999 U CN 203798999U CN 201320800336 U CN201320800336 U CN 201320800336U CN 203798999 U CN203798999 U CN 203798999U
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- 238000012360 testing method Methods 0.000 title claims abstract description 107
- 238000012544 monitoring process Methods 0.000 title abstract description 6
- 238000012806 monitoring device Methods 0.000 claims description 29
- 238000004891 communication Methods 0.000 claims description 6
- 230000001360 synchronised effect Effects 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract description 10
- 238000000691 measurement method Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 13
- 238000007726 management method Methods 0.000 description 8
- 238000005070 sampling Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000013523 data management Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Abstract
The utility model relates to a system for testing power quality monitoring equipment, and the system comprises a power quality standard source, a signal collection device, a GPS time-tick device, a protocol converter, a testing work station, and tested equipment. The power quality standard source is connected with the signal collection device and the tested equipment through the GPS time-tick device. The testing work station is connected with the tested equipment and the signal collection device. The system communicated with the GPS time-tick device. A time-tick signal is supplied to the system through the GPS time-tick device, so as to achieve the clock synchronization of the power quality monitoring equipment and the signal collection device. The system provided by the utility model not only can achieve the testing of the measurement accuracy of the power quality monitoring equipment, but also can achieve the testing of a measurement method. Compared with the testing of conventional power quality monitoring equipment, the system is more comprehensive in testing, achieves the plugging testing of the tested equipment, and greatly improves the work efficiency.
Description
Technical field
The utility model belongs to measuring technology, specifically relates to a kind of system of testing power quality monitoring device.
Background technology
" power quality monitoring device " is the secondary device for the monitoring of electrical network power quality index.IEC61000 series standard and China's national standard have clear and definite regulation to power quality monitoring device power quality index measuring method and accuracy of measurement, therefore in the production of " power quality monitoring device " and put into operation in process, require its measuring method and accuracy of measurement to test.At present, power quality monitoring device mainly carries out the test of accuracy of measurement with manual or semi-automatic test, not yet the measuring method of power quality index is tested, and this method of testing workload is large, and length consuming time.For this situation, be badly in need of at present a kind of Auto-Test System of power quality monitoring device, can test humorous measuring method and the accuracy of measurement that involves the power quality index values such as quality of power supply event (fall temporarily, rise temporarily, interrupt) between the frequency of power quality monitoring device, effective value, flickering, imbalance, harmonic wave, generate corresponding test report, support the functions such as test data classified inquiry storage, report derivation, printing and system configuration, realize inserting and survey of power quality monitoring device.
Utility model content
For the deficiencies in the prior art, the utility model provides a kind of system of testing power quality monitoring device.The utility model can complete the automatic detection of power quality monitoring device measuring method and accuracy of measurement, has improved testing efficiency, has reduced the impact of human factor on test process.The utility model is made up of quality of power supply standard source, signal pickup assembly, GPS timing device, protocol converter, testing workstation, tested equipment.Testing workstation is carried out the Long-distance Control of quality of power supply standard source by gpib bus, utilize GPS timing device to system provide to time signal in order to carry out the clock synchronous of power quality monitoring device, signal pickup assembly, quality of power supply standard source connects respectively tested equipment and signal pickup assembly by test signal line, tested equipment is connected to testing workstation or by stipulations converter, data is reached to testing workstation by Ethernet interface or serial ports, and signal pickup assembly directly reaches testing workstation by Ethernet by data.
The purpose of this utility model is to adopt following technical proposals to realize:
Test a system for power quality monitoring device, its improvements are, described system comprises quality of power supply standard source, signal pickup assembly, GPS timing device, protocol converter, testing workstation and tested equipment;
Described quality of power supply standard source connects respectively signal pickup assembly and tested equipment by GPS timing device; Described testing workstation connects respectively tested equipment and signal pickup assembly;
Described system is communicated by letter with GPS timing device, by GPS timing device to system provide to time signal carry out the clock synchronous of power quality monitoring device, signal pickup assembly.
Preferably, described quality of power supply standard source connects respectively tested equipment and signal pickup assembly by test signal line.
Preferably, described tested equipment is connected to testing workstation or by stipulations converter, data is reached to testing workstation by Ethernet interface or serial ports.
Preferably, described signal pickup assembly reaches testing workstation by Ethernet by data.
Preferably, described quality of power supply standard source receives by gpib bus the corresponding test signal of SCPI order generation that testing workstation provides.
Further, described stipulations converter is converted into the equipment under test that meets communication protocol the equipment that meets IEC61850 standard; Described communication protocol comprises IEC60870-5 series, CDT stipulations, MODBUS stipulations, DNP stipulations and RP570 stipulations.
Preferably, described testing workstation comprises instrument driver module, IEC61850Client module, testing control module, data computation module and system management module.
Compared with the prior art, the beneficial effects of the utility model are:
1) the utility model can not only be realized the test of power quality monitoring device accuracy of measurement, can also carry out the test of measuring method, and the test of power quality monitoring device was more comprehensive more in the past; And realize inserting and survey of tested equipment, greatly improved work efficiency.
2) the utility model adopts gps signal to carry out clock synchronous, has ensured reliable, the accuracy of test.
3) the utility model signal pickup assembly is programming device, can be for secondary development, and with other function of requirements extend, the ductility of this patent and expand space very large.
4) the utility model adopts protocol converter non-standard equipment can be converted into standard device, thereby realizes the seamless access of non-standard equipment.
5) this system is without external instruction input module, and without manual intervention, operating personnel only need a button of hit testing workstation can complete the test of all functions, without professional training, can automatically complete the automatic test of repertoire to operating personnel.
6) the utility model system architecture is simple, and all devices forms closed loop, is easy to safeguard.
Brief description of the drawings
A kind of system schematic of testing power quality monitoring device that Fig. 1 provides for the utility model.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
The utility model is made up of quality of power supply standard source, signal pickup assembly, GPS timing device, protocol converter, testing workstation, tested equipment.
Can there is electric energy quality test signal in quality of power supply standard source.Quality of power supply standard source receives by gpib bus the corresponding test signal of SCPI order generation that testing workstation provides.
The GPS that GPS timing device is provided for tested equipment and signal pickup assembly to time signal.
The quality of power supply waveform that signal pickup assembly sends quality of power supply standard source carries out digitized sampling, and this device sampling rate need be consistent with tested equipment.This device is received testing workstation steering order and is uploaded sampled value by procotol, and the standard value of power quality index is calculated and provided to testing workstation.This device need to gps signal to time.
Stipulations converter is used for the equipment under test that meets traditional communication stipulations to be converted into the equipment that meets IEC61850 standard, thus access Auto-Test System.Traditional communication stipulations comprise: IEC60870-5 series (comprising IEC101, IEC103, IEC104), CDT stipulations, MODBUS stipulations, DNP stipulations, RP570 stipulations.
The data of testing workstation for controlling the automatic testing process of the quality of power supply and calculating signal pickup assembly, tested equipment and upload, thus testing result automatically provided.Mainly comprise instrument driver module, IEC61850Client module, testing control module, data computation module, system management module, be specially:
Instrument driver module comprises: quality of power supply standard source interface is GPIB, supports standard program control command SCPI, adopts VISA Virture Instrumentation Software Architecture to carry out instrument driving, and can need to carry out according to test expansion, the expansion of signal source.
IEC61850Client module: for connecting the power quality monitoring device that meets IEC61850 standard.The equipment that meets IEC61850 standard can directly access this module, and other equipment are converted into Standards Code access by rule converter.Concrete function: 1) can automatic analyzer configuration file (.icd file), obtain auto levelizer logical model structure; 2) connect terminal, obtain quality of power supply real time data message, and complete 61850 packet parsings; 3) packet parsing Data classification warehouse-in.
Testing control module: this testing process administration module mainly completes whole auto test flow control.Concrete function: 1) self-defined test event and test template; 2) generation of testing standard value and obtaining; 3) management of testing process, specifically comprises that test starts, interrupts, repeats to control and test mode inquiry; 4) according to test template, correctly invocation facility driver module; 5) can show test results;
Data computation module: the real time data gathering by data collecting card, according to the needs that detect index, is calculated the standard value of detected index, for comparison by desired canonical measure algorithm in relevant GB.
System management module comprises: data management, test script management, log management, detection information management, user management, report inquiry etc.
As described in Figure 1, a kind of system of testing power quality monitoring device of the utility model, its method of testing idiographic flow is as follows:
(1) in system, each equipment is all normally worked;
(2) guarantee in system each need to time equipment all synchronize with gps time;
(3) instrument driver module drives quality of power supply standard source, and test signal occurs;
(4) the tested equipment of IEC61850 standard receives test signal, and deposits measurement data in testing workstation by IEC61850Client module, and other equipment access by protocol converter;
(5) signal pickup assembly band markers sampling quality of power supply standard source signal waveform, when testing workstation data computation module receives the band that signal pickup assembly uploads, target voltage, current sampling data are power quality index standard value;
(6) testing control module receives the measured value of standard value and tested equipment, requires to calculate tested equipment index according to detection method, provides testing result, and generates report.
Embodiment
Using supply voltage amplitude as detecting target, adopt a kind of system of testing power quality monitoring device of the utility model below, concrete method of testing is:
" EMC test and measuring technique quality of power supply measuring method " be middle regulation 50Hz electric system (GB/T17626.30), 150 weeks wave numbers of supply voltage should be the root-mean-square valve of 15 10 weeks wave numbers, and every 10min RTC timing point will carry out once synchronous again to the 150 cycle time intervals.Wherein the fundamental measurement time interval of supply voltage should be 10 cycles.
Concrete test implementation mode:
(1) in system, each equipment is all normally worked;
(2) guarantee that signal pickup assembly in system, tested power quality monitoring device synchronize with gps time;
(3) quality of power supply standard source receives testing workstation instruction, and test signal occurs, and this test signal is the signal of a variation;
(4) tested equipment receives test signal, and 150 weeks wave number measurement data are uploaded to testing workstation during by measured supply voltage 10min RTC timing point;
(5) signal pickup assembly band markers sampling electric energy quality signal waveform, target voltage, current sampling data when data computation module receives the band that signal pickup assembly uploads, the supply voltage 150 cycle standard values that while calculating 10min RTC timing point, signal source provides;
(6) testing control module receives the measured value of this 150 cycle standard value and tested equipment, compares, and automatically provides testing result.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any amendment of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. a system of testing power quality monitoring device, is characterized in that, described system comprises quality of power supply standard source, signal pickup assembly, GPS timing device, protocol converter, testing workstation and tested equipment;
Described quality of power supply standard source connects respectively signal pickup assembly and tested equipment by GPS timing device; Described testing workstation connects respectively tested equipment and signal pickup assembly;
Described system is communicated by letter with GPS timing device, by GPS timing device to system provide to time signal carry out the clock synchronous of power quality monitoring device, signal pickup assembly.
2. a kind of system of testing power quality monitoring device as claimed in claim 1, is characterized in that, described quality of power supply standard source connects respectively tested equipment and signal pickup assembly by test signal line.
3. a kind of system of testing power quality monitoring device as claimed in claim 1, is characterized in that, described tested equipment is connected to testing workstation or by stipulations converter, data is reached to testing workstation by Ethernet interface or serial ports.
4. a kind of system of testing power quality monitoring device as claimed in claim 1, is characterized in that, described signal pickup assembly reaches testing workstation by Ethernet by data.
5. a kind of system of testing power quality monitoring device as claimed in claim 1, is characterized in that, described quality of power supply standard source receives by gpib bus the corresponding test signal of SCPI order generation that testing workstation provides.
6. a kind of system of testing power quality monitoring device as claimed in claim 3, is characterized in that, described stipulations converter is converted into the equipment under test that meets communication protocol the equipment that meets IEC61850 standard; Described communication protocol comprises IEC60870-5 series, CDT stipulations, MODBUS stipulations, DNP stipulations and RP570 stipulations.
7. a kind of system of testing power quality monitoring device as claimed in claim 1, is characterized in that, described testing workstation comprises instrument driver module, IEC61850Client module, testing control module, data computation module and system management module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800336.7U CN203798999U (en) | 2013-12-06 | 2013-12-06 | System for testing power quality monitoring equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320800336.7U CN203798999U (en) | 2013-12-06 | 2013-12-06 | System for testing power quality monitoring equipment |
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| CN203798999U true CN203798999U (en) | 2014-08-27 |
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| CN201320800336.7U Expired - Lifetime CN203798999U (en) | 2013-12-06 | 2013-12-06 | System for testing power quality monitoring equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616654A (en) * | 2013-12-06 | 2014-03-05 | 国家电网公司 | System and method for testing power quality monitoring device |
| CN105203980A (en) * | 2015-09-14 | 2015-12-30 | 广西电网有限责任公司电力科学研究院 | Electric energy quality self-inspection system and self-inspection method thereof |
| CN105738849A (en) * | 2014-12-09 | 2016-07-06 | 北京煜邦电力技术有限公司 | Digital power quality detection system |
| CN104569901B (en) * | 2014-10-30 | 2017-10-20 | 国家电网公司 | A kind of detecting system of intelligent electric energy meter |
-
2013
- 2013-12-06 CN CN201320800336.7U patent/CN203798999U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103616654A (en) * | 2013-12-06 | 2014-03-05 | 国家电网公司 | System and method for testing power quality monitoring device |
| CN104569901B (en) * | 2014-10-30 | 2017-10-20 | 国家电网公司 | A kind of detecting system of intelligent electric energy meter |
| CN105738849A (en) * | 2014-12-09 | 2016-07-06 | 北京煜邦电力技术有限公司 | Digital power quality detection system |
| CN105203980A (en) * | 2015-09-14 | 2015-12-30 | 广西电网有限责任公司电力科学研究院 | Electric energy quality self-inspection system and self-inspection method thereof |
| CN105203980B (en) * | 2015-09-14 | 2018-08-24 | 广西电网有限责任公司电力科学研究院 | A kind of power quality self-checking system and its self checking method |
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Granted publication date: 20140827 |