CN103616654A - System and method for testing power quality monitoring device - Google Patents

System and method for testing power quality monitoring device Download PDF

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Publication number
CN103616654A
CN103616654A CN201310656718.1A CN201310656718A CN103616654A CN 103616654 A CN103616654 A CN 103616654A CN 201310656718 A CN201310656718 A CN 201310656718A CN 103616654 A CN103616654 A CN 103616654A
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CN
China
Prior art keywords
testing
power quality
quality monitoring
signal
test
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Application number
CN201310656718.1A
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Chinese (zh)
Inventor
安哲
杨岑玉
赵鹏程
黄蒙
王同勋
周胜军
Original Assignee
国家电网公司
国网智能电网研究院
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Priority to CN201310656718.1A priority Critical patent/CN103616654A/en
Publication of CN103616654A publication Critical patent/CN103616654A/en

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Abstract

The invention relates to a system and method for testing a power quality monitoring device. The system for testing the power quality monitoring device comprises a power quality standard source, a signal collection device, a GPS time calibration device, a protocol converter, a test station and a tested device, wherein the power quality standard source is connected with the signal collection device and the tested device through the GPS time calibration device, and the test station is connected with the tested device and the signal collection device. The method for testing the power quality monitoring device comprises the steps of (1) starting the device, (2) carrying out GPS time synchronization, (3) receiving an instruction, generating a test signal, (4) enabling the tested device to receive the test signal, storing measured data in the test station, (5) enabling the test station to receive a power quality index standard value uploaded by the signal collection device, and (6) calculating indexes of the tested device through receiving of the power quality index standard value and measured values of the tested device, and generating a test result report. According to the system and method for testing the power quality monitoring device, testing of measurement accuracy of the power quality monitoring device and testing of a measuring method can be achieved, and working efficiency is greatly improved.

Description

A kind of system and method thereof of testing power quality monitoring device

Technical field

The invention belongs to measuring technology, specifically relate to a kind of system and method thereof 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 the Auto-Test System of a kind of power quality monitoring device of design, 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.

Summary of the invention

For the deficiencies in the prior art, the invention provides a kind of system and method thereof of testing power quality monitoring device.The present invention 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 present invention is comprised 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 object of the invention 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.

Preferably, 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; Described tested equipment is connected to testing workstation or by stipulations converter, data is reached to testing workstation by Ethernet interface or serial ports; 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.

The present invention is based on a kind of method of testing power quality monitoring device that another object provides, its improvements are, described method comprises

1) starting outfit;

2) carry out gps time synchronous;

3) receive instruction and test signal occurs;

4) tested equipment receives test signal and deposits measurement data in testing workstation;

5) testing workstation receives the power quality index standard value that signal pickup assembly is uploaded;

6) by receiving the measured value of standard value and tested equipment, calculate tested equipment index and generate test results report.

Preferably, described step (2) comprises that signal pickup assembly in described power quality monitoring device, tested power quality monitoring device and GPS carry out time synchronized.

Preferably, described step (3) comprises that quality of power supply standard source receives testing workstation instruction, and test signal occurs; The signal of described test signal for changing.

Preferably, described step (4) comprises that the tested equipment of the described IEC61850 standard transforming through stipulations converter receives test signal, and by IEC61850Client module, deposits measurement data in testing workstation.

Preferably, described step (5) comprises signal pickup assembly band markers sampling quality of power supply standard source signal waveform, and 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.

Preferably, described step (6) comprises that testing control module receives the measured value of standard value and tested equipment, calculates tested equipment index, provides testing result, and generates report.

Compared with the prior art, beneficial effect of the present invention is:

1) the present invention can not only realize 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 realized inserting and survey of tested equipment, greatly improved work efficiency.

2) the present invention adopts gps signal to carry out clock synchronous, has guaranteed reliable, the accuracy of test.

3) signal pickup assembly of the present invention 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 present invention 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, to operating personnel, without professional training, can automatically complete the automatic test of repertoire.

6) system architecture of the present invention is simple, and all devices forms closed loop, is easy to safeguard.

Accompanying drawing explanation

Fig. 1 is a kind of system schematic of testing power quality monitoring device provided by the invention.

Embodiment

Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail.

The present invention is comprised 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 expansion, the expansion of signal source according to test.

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 by rule converter and access.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 and controls.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, invocation facility driver module correctly; 5) can show test results;

Data computation module: the real time data gathering by data collecting card, according to the needs that detect index, desired canonical measure algorithm calculates the standard value of detected index in relevant GB, for comparison.

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 method idiographic flow of testing power quality monitoring device of the present invention is as follows:

(1) in system, each equipment all works;

(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 by IEC61850Client module, deposits measurement data in testing workstation, 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, according to detection method, requires to calculate tested equipment index, provides testing result, and generates report.

Embodiment

Supply voltage amplitude using below as detecting target, and concrete method of testing is:

In < < EMC test and measuring technique quality of power supply measuring method > > (GB/T17626.30), regulation is to 50Hz electric system, 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 all works;

(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 technical scheme of the present invention is not intended to limit, although the present invention 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 the specific embodiment of the present invention, and do not depart from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed in the middle of claim scope of the present invention.

Claims (12)

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.
2. a kind of system of testing power quality monitoring device as claimed in claim 1, it is characterized in that, 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.
3. 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; Described tested equipment is connected to testing workstation or by stipulations converter, data is reached to testing workstation by Ethernet interface or serial ports; Described signal pickup assembly reaches testing workstation by Ethernet by data.
4. 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.
5. 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.
6. 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.
7. a method of testing power quality monitoring device, is characterized in that, described method comprises
1) starting outfit;
2) carry out gps time synchronous;
3) receive instruction and test signal occurs;
4) tested equipment receives test signal and deposits measurement data in testing workstation;
5) testing workstation receives the power quality index standard value that signal pickup assembly is uploaded;
6) by receiving the measured value of standard value and tested equipment, calculate tested equipment index and generate test results report.
8. a kind of method of testing power quality monitoring device as claimed in claim 7, is characterized in that, described step (2) comprises that signal pickup assembly in described power quality monitoring device, tested power quality monitoring device and GPS carry out time synchronized.
9. a kind of method of testing power quality monitoring device as claimed in claim 7, is characterized in that, described step (3) comprises that quality of power supply standard source receives testing workstation instruction, and test signal occurs; The signal of described test signal for changing.
10. a kind of method of testing power quality monitoring device as claimed in claim 7, it is characterized in that, described step (4) comprises that the tested equipment of the described IEC61850 standard transforming through stipulations converter receives test signal, and by IEC61850Client module, deposits measurement data in testing workstation.
11. a kind of methods of testing power quality monitoring device as claimed in claim 7, it is characterized in that, described step (5) comprises signal pickup assembly band markers sampling quality of power supply standard source signal waveform, and 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.
12. a kind of methods of testing power quality monitoring device as claimed in claim 7, it is characterized in that, described step (6) comprises that testing control module receives the measured value of standard value and tested equipment, calculates tested equipment index, provide testing result, and generate report.
CN201310656718.1A 2013-12-06 2013-12-06 System and method for testing power quality monitoring device CN103616654A (en)

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Cited By (12)

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CN104198797A (en) * 2014-08-26 2014-12-10 广东电网公司电力科学研究院 Voltage detection method, system and device
CN104237592A (en) * 2014-09-04 2014-12-24 国家电网公司 Electric measurement error distributed comparison system and comparison and source analysis method
CN104880596A (en) * 2015-04-24 2015-09-02 国网四川省电力公司电力科学研究院 Volt-ampere vector wireless test method used for transformer substation system debugging
CN105021909A (en) * 2014-04-24 2015-11-04 国家电网公司 Automatic detection method for digital electric energy quality monitoring terminal and system thereof
CN105022012A (en) * 2014-04-24 2015-11-04 国家电网公司 Flicker precision detection method for digital electric energy quality monitoring terminal and system thereof
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
CN106405286A (en) * 2016-08-30 2017-02-15 深圳市中电电力技术股份有限公司 Electric energy quality monitoring device automatic test method and system
CN106597352A (en) * 2016-11-23 2017-04-26 国网新疆电力公司电力科学研究院 Standardized construction method driven by standard source of power quality monitoring equipment
CN108519532A (en) * 2018-05-15 2018-09-11 南京丹迪克科技开发有限公司 A kind of electric energy quality test system and its test point detecting method
CN108646209A (en) * 2018-06-08 2018-10-12 广西电网有限责任公司电力科学研究院 A kind of equipment for monitoring power quality on-site proving system and calibration method
CN108693493A (en) * 2018-06-08 2018-10-23 广西电网有限责任公司电力科学研究院 A kind of calibration system and calibration method for standard equipment for monitoring power quality
CN108845281A (en) * 2018-06-08 2018-11-20 广西电网有限责任公司电力科学研究院 A kind of online Determination system of equipment for monitoring power quality and its detection method

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CN105021909A (en) * 2014-04-24 2015-11-04 国家电网公司 Automatic detection method for digital electric energy quality monitoring terminal and system thereof
CN105022012A (en) * 2014-04-24 2015-11-04 国家电网公司 Flicker precision detection method for digital electric energy quality monitoring terminal and system thereof
CN105022012B (en) * 2014-04-24 2018-03-06 国家电网公司 The flickering accuracy checking method and system of digital electric power quality monitoring terminal
CN104198797A (en) * 2014-08-26 2014-12-10 广东电网公司电力科学研究院 Voltage detection method, system and device
CN104237592B (en) * 2014-09-04 2016-11-09 国家电网公司 A kind of distributed Compare System of electrical measurement error and comparison, source analysis method
CN104237592A (en) * 2014-09-04 2014-12-24 国家电网公司 Electric measurement error distributed comparison system and comparison and source analysis method
CN104880596A (en) * 2015-04-24 2015-09-02 国网四川省电力公司电力科学研究院 Volt-ampere vector wireless test method used for transformer substation system debugging
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
CN106405286A (en) * 2016-08-30 2017-02-15 深圳市中电电力技术股份有限公司 Electric energy quality monitoring device automatic test method and system
CN106405286B (en) * 2016-08-30 2019-08-30 深圳市中电电力技术股份有限公司 The automatic test approach and system of quality monitoring device of electrical energy
CN106597352A (en) * 2016-11-23 2017-04-26 国网新疆电力公司电力科学研究院 Standardized construction method driven by standard source of power quality monitoring equipment
CN108519532A (en) * 2018-05-15 2018-09-11 南京丹迪克科技开发有限公司 A kind of electric energy quality test system and its test point detecting method
CN108646209A (en) * 2018-06-08 2018-10-12 广西电网有限责任公司电力科学研究院 A kind of equipment for monitoring power quality on-site proving system and calibration method
CN108693493A (en) * 2018-06-08 2018-10-23 广西电网有限责任公司电力科学研究院 A kind of calibration system and calibration method for standard equipment for monitoring power quality
CN108845281A (en) * 2018-06-08 2018-11-20 广西电网有限责任公司电力科学研究院 A kind of online Determination system of equipment for monitoring power quality and its detection method

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Application publication date: 20140305