CN102495322A - Synchronous performance test method for digital relay protection device based on IEC61850 (International Electrotechnical Commission 61850) - Google Patents
Synchronous performance test method for digital relay protection device based on IEC61850 (International Electrotechnical Commission 61850) Download PDFInfo
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- 238000005070 sampling Methods 0.000 claims abstract description 36
- 238000012360 testing method Methods 0.000 claims abstract description 25
- 230000001681 protective effect Effects 0.000 claims description 78
- 238000010998 test method Methods 0.000 claims description 11
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
- G01R31/3277—Testing of circuit interrupters, switches or circuit-breakers of low voltage devices, e.g. domestic or industrial devices, such as motor protections, relays, rotation switches
Abstract
The invention discloses a synchronous performance test method for a digital relay protection device based on IEC61850 (International Electrotechnical Commission 61850). The method comprises the following steps of: transmitting a voltage sampling value and a current sampling value to the digital relay protection device by a simulative combination unit through a digital relay protection tester; configuring different rated delays to each interval sampling value which is required for a synchronous test for the digital relay protection device under different delay conditions through changing a rated delay time in each interval sampling value channel, which is output by the digital relay protection tester; and checking whether each interval phase angle difference displayed by the digital relay protection device corresponds to the rated delay difference. If the each interval phase angle difference corresponds to the rated delay difference, the synchronous performance test of the digital relay protection device is correct; otherwise, the synchronous performance is incorrect. The synchronous performance test method for the digital relay protection device based on IEC61850 has the advantages that: the method makes up a blank that the synchronous performance test method for the digital relay protection device is not provided at present, and disposable devices such as a current booster, a pressure regulator and the like are not required, so that a large amount of manpower and material resources are saved, and the debugging time is saved.
Description
Technical field
The present invention relates to a kind of net synchronization capability method of testing, relate in particular to a kind of digital protective relay system net synchronization capability method of testing based on IEC61850.
Background technology
New equipment, new technologies such as intelligent substation employing electronic mutual inductor have realized electric parameters sampling in-situ digitalizations such as electric current, voltage; Electrical secondary system adopts the IEC61850 standard; Realized information transmission networkization, the information sharing standardization, protective relaying device is also turned to by receiving digital quantity from optical fiber by Traditional use cable access voltage, current analog quantitative change; Change has taken place in sample mode, also makes the debug-item of protective relaying device, adjustment method that variation has all taken place thus.Sampled value net synchronization capability test is exactly one of the newly-increased and pilot project that must carry out of the digital Microcomputer Protection of intelligent substation.
In transformer station; General protective device all need be gathered a plurality of electric weight; Especially bus differential protection, tranformer protection etc. need to be gathered the electric weight of a plurality of bay unit, not only require in the same interval voltage/current sampled value data time synchronous, and the voltage/current sampled value between different interval also will guarantee time synchronized; Could guarantee that the protection action is correct, can malfunction or tripping.The traditional secondary protective device causes device with the electric weight of needs through secondary cable; Accomplish the synchronized sampling of each electric weight by protective device; And each electric weight in the intelligent substation has been a digital quantity in output after the electronic mutual inductor conversion, and digital quantity is delivered to each protective device through optical fiber, therefore; Each sampled value that the intelligent substation digital protective relay system receives often is not a data in synchronization, needs by protective device strict synchronism to be carried out in sampling.
Research to the synchronization scenario of transformer station and synchronization principles is more; But the method to the test of protective device net synchronization capability does not still have document research at present; Along with carrying out on a large scale of intelligent substation construction, how the net synchronization capability of protective device being tested becomes extremely important and inevitable problem in the debug process.
Explicitly call among the Q/GDW 441-2010 " intelligent substation Protection Technology standard " " protective device should not rely on outside to the time system realize its function "; Also clearly stipulate in the standard simultaneously " Direct Sampling is answered in protection "; " the protective device sampled value adopts point-to-point access way; sample-synchronous should be realized by protective device ", according to above requirement, the general point-to-point mode that adopts based on IEC 60044-8 or the IEC 61850-9-2 of FT3 of digital protection equipment; Transmission delay is fixed, and sampled value adopts method of interpolation to accomplish by protective device synchronously.
Method of interpolation is a kind of reckoning formula method of synchronization.Protective device utilizes the accurate due in of MU sample information, message to calculate the local sample constantly of MU correspondence time delay, obtains the different MU sample information in the corresponding same local moment through interpolation calculation then.Its prerequisite is that known (or calculate and can obtain) each MU sampling arrives the time delay of confirming of protection; In Fig. 2, solid line is represented the accurate moment of MU sampling message, and dotted line representes to protect actual reception to arrive the moment of MU sampling message; Δ t1, Δ t2 are respectively the fixed sample time delay of merge cells MU1, MU2; Through this time delay, can extrapolate the corresponding constantly local moment of actual samples of MU, represent with solid line.Can obtain the corresponding arbitrary local sampled data constantly of each MU through interpolation calculation, thereby realize sample-synchronous calculating.
Carry out the method for protective device synchronism detection at present:
Still protective device is not carried out the clear and definite method of net synchronization capability test at present; Normally when mutual inductor carries out accuracy testing; The specified time-delay of each merge cells is adjusted into identical value; With this each value at interval that guarantees that protective device receives is the value of synchronization, but this way is can't be to the net synchronization capability test of protective device in fact, and the sampled value of each merge cells that only can assurance device receives is a synchronization; Can not guarantee that through behind the interpolation algorithm of protective device, each sampled value at interval is still synchronous.Because interior mutual inductor in station or merge cells often are not same producer products, can not the specified time-delay of each merge cells be adjusted into identical value sometimes simultaneously, therefore also have significant limitation.
Another to the method that protective device carries out the net synchronization capability checking is: add the method with power supply at the mutual inductor primary side.As differential each side current sampling data being carried out the net synchronization capability test, then each side current transformer is once being added same electric current, check each side current sampling data at protective device, see whether phase place is correct, judge whether the protective device net synchronization capability is normal.Common this method is adapted at dispatching from the factory and concentrates test phase to carry out.But also there is very big drawback in this method: one, after primary equipment installs at the scene, each side mutual inductor distance is far away usually, and particularly each side of transformer does not possess the condition that adds same electric current, and this way just can't be used; Two, can't therefore can not test at primary side while making alive and electric current the net synchronization capability between electric current, the voltage; Three, this method of testing needs primary equipments such as current lifting device, pressure regulator, bothers very much during test, needs the time longer.
Summary of the invention
The object of the invention is exactly in order to address the above problem; A kind of digital protective relay system net synchronization capability method of testing based on IEC61850 is provided, and it has a kind of new method to the test of digital protective relay system net synchronization capability, has simple; Accurately, time saving advantage.
To achieve these goals, the present invention adopts following technical scheme:
A kind of digital protective relay system net synchronization capability method of testing based on IEC61850; Utilize the digital protective relay tester; CID model file through importing digital formula protective relaying device; The channel definition that obtains the digital protective relay system sampled value row of channels configuration of going forward side by side, output meets the sampled data of digital protective relay system definition; Frame format simulation merge cells according to IEC61850-9-2, IEC60044-8 sends to digital protective relay system with the voltage and current sampled value; Through the specified delay time in each the interval sampling value passage that changes the output of digital protective relay tester; Under the different time delay situation; Need carry out each interval sampling value of synchronism detection to digital protective relay system; Carry out the difference configuration of specified time-delay, check whether each interval phase angle difference of digital protective relay system demonstration is corresponding with specified time-delay phase angle difference.If corresponding, then the test of digital protective relay system net synchronization capability is correct, otherwise the digital protective relay system net synchronization capability is incorrect.
Concrete test process is; The sampled value of different interval is carried out the net synchronization capability test: the specified time-delay of setting one of which interval sampling value is t1 μ s; The specified time-delay of another interval sampling value is t2 μ s; Then the specified time-delay of two interval sampling values is (t2-t1) μ s; Each sampled value is the sine wave that frequency is 50Hz; Therefore every millisecond of angle is 360 °/20ms=18 °; Differ under the situation into (t2-t1) μ s in specified time-delay; The corresponding phase angle differences of two interval sampling values are:
theoretical=(t2-t1) μ s*18 °/1000; Check that the corresponding actual phase angle difference of two interval sampling values of digital protective relay system is:
reality, if
reality, then the test of digital protective relay system net synchronization capability is correct; Otherwise the digital protective relay system net synchronization capability is incorrect.
Principle of work of the present invention
Utilize the digital protective relay tester; The simulation merge cells sends to digital protective relay system with the voltage and current sampled value; Through the specified delay time in each the interval sampling value passage that changes the output of digital protective relay tester; The net synchronization capability of test digital protective relay system under the different time delay situation; Promptly corresponding at interval phase angle difference
is theoretical and actual phase angle difference
is actual if equate; Explain that then the test of digital protective relay system net synchronization capability is correct; Otherwise, then asynchronous.
Beneficial effect of the present invention:
This method of testing can correctly be accomplished the test of protection net synchronization capability; Remedied the blank that does not have digital protective relay system net synchronization capability method of testing at present; Do not need primary equipments such as current lifting device, pressure regulator, saved great amount of manpower and material resources, practiced thrift debug time.
Description of drawings
Fig. 1 is a process flow diagram of the present invention;
Fig. 2 for MU sampling accurately constantly and the digital protective relay system actual reception to moment of MU sampling message synoptic diagram relatively.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
A kind of digital protective relay system net synchronization capability method of testing based on IEC61850; Utilize the digital protective relay tester; CID model file through importing digital formula protective relaying device; The channel definition that obtains the digital protective relay system sampled value row of channels configuration of going forward side by side, output meets the sampled data of digital protective relay system definition; Frame format simulation merge cells according to IEC61850-9-2, IEC 60044-8 sends to digital protective relay system with the voltage and current sampled value; Through the specified delay time in each the interval sampling value passage that changes the output of digital protective relay tester; Under the different time delay situation; Need carry out each interval sampling value of synchronism detection to digital protective relay system; Carry out the difference configuration of specified time-delay, check whether each interval phase angle difference of digital protective relay system demonstration is corresponding with specified time-delay phase angle difference.If corresponding, then the test of digital protective relay system net synchronization capability is correct, otherwise the digital protective relay system net synchronization capability is incorrect.
With the bus protection is that example is introduced as follows in detail: bus protection need insert the current sampling data at all intervals on this bus and the sampled value of busbar voltage; The sampled value of these different interval is carried out the net synchronization capability test as follows: the specified time-delay of setting an interval sampling value is t1 μ s; The specified time-delay of another interval sampling value is t2 μ s; Then the specified time-delay of two interval sampling values is (t2-t1) μ s; Each sampled value is the sine wave that frequency is 50Hz; Therefore every millisecond of angle is 360 °/20ms=18 °; Differ under the situation into (t2-t1) μ s in specified time-delay; Two at interval corresponding phase angle differences are:
theoretical=(t2-t1) μ s*18 °/1000; Check that the corresponding actual phase angle difference in two intervals of digital protective relay system is:
reality; if
reality; Then the test of digital protective relay system net synchronization capability is correct; Otherwise the digital protective relay system net synchronization capability is incorrect.
For example:
Though the above-mentioned accompanying drawing specific embodiments of the invention that combines is described; But be not restriction to protection domain of the present invention; One of ordinary skill in the art should be understood that; On the basis of technical scheme of the present invention, those skilled in the art need not pay various modifications that creative work can make or distortion still in protection scope of the present invention.
Claims (2)
1. digital protective relay system net synchronization capability method of testing based on IEC61850; It is characterized in that; Utilize the digital protective relay tester; Through the CID model file of importing digital formula protective relaying device, the channel definition that obtains the digital protective relay system sampled value row of channels configuration of going forward side by side, output meets the sampled data of digital protective relay system definition; Frame format simulation merge cells according to IEC61850-9-2, IEC60044-8 sends to digital protective relay system with the voltage and current sampled value; Through the specified delay time in each the interval sampling value passage that changes the output of digital protective relay tester; Under the different time delay situation; Need carry out each interval sampling value of synchronism detection to digital protective relay system; Carry out the difference configuration of specified time-delay, check whether each interval phase angle difference of digital protective relay system demonstration is corresponding with specified time-delay phase angle difference; If corresponding, then the test of digital protective relay system net synchronization capability is correct, otherwise the digital protective relay system net synchronization capability is incorrect.
2. the digital protective relay system net synchronization capability method of testing based on IEC61850 as claimed in claim 1; It is characterized in that; Each interval phase angle difference and the concrete test process of specified time-delay phase angle difference that digital protective relay system shows are; The sampled value of different interval is carried out the net synchronization capability test: the specified time-delay of setting one of which interval sampling value is t1 μ s; The specified time-delay of another interval sampling value is t2 μ s; Then the specified time-delay of two interval sampling values is (t2-t1) μ s; Each sampled value is the sine wave that frequency is 50Hz; Therefore every millisecond of angle is 360 °/20ms=18 °; Differ under the situation into (t2-t1) μ s in specified time-delay; The corresponding phase angle differences of two interval sampling values are:
theoretical=(t2-t1) μ s*18 °/1000; Check that the corresponding actual phase angle difference of two interval sampling values of digital protective relay system is:
reality, if
reality, then the test of digital protective relay system net synchronization capability is correct; Otherwise the digital protective relay system net synchronization capability is incorrect.
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| CN201110435656.2A CN102495322B (en) | 2011-12-22 | 2011-12-22 | Synchronous performance test method for digital relay protection device based on IEC61850 (International Electrotechnical Commission 61850) |
| PCT/CN2012/001503 WO2013091277A1 (en) | 2011-12-22 | 2012-11-08 | Iec61850-based synchronization performance test method for digital relay protection device |
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| CN201110435656.2A CN102495322B (en) | 2011-12-22 | 2011-12-22 | Synchronous performance test method for digital relay protection device based on IEC61850 (International Electrotechnical Commission 61850) |
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Cited By (9)
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|---|---|---|---|---|
| WO2013091277A1 (en) * | 2011-12-22 | 2013-06-27 | 山东电力研究院 | Iec61850-based synchronization performance test method for digital relay protection device |
| CN103983878A (en) * | 2014-06-05 | 2014-08-13 | 贵州电力试验研究院 | Relay protection synchronization performance testing system and method based on random discrete time domain |
| WO2014153764A1 (en) * | 2013-03-29 | 2014-10-02 | 国家电网公司 | Method and device for automatic test of relay protection function of intelligent substation |
| CN105978556A (en) * | 2016-06-20 | 2016-09-28 | 南京国电南自电网自动化有限公司 | Hybrid sampling synchronization method for onsite protection device |
| CN107340448A (en) * | 2016-11-22 | 2017-11-10 | 国家电网公司东北分部 | Utilize control voltage and the method for current phase measurement circuitry protection device vector |
| CN107765114A (en) * | 2017-09-14 | 2018-03-06 | 国网浙江省电力公司温州供电公司 | Test system and method for testing based on digital transformer protection device |
| CN108345243A (en) * | 2018-01-18 | 2018-07-31 | 国网浙江省电力有限公司电力科学研究院 | The digitized measurement tests FT3 to IEC61850-9-2 protocol conversion apparatus |
| CN110596485A (en) * | 2019-08-22 | 2019-12-20 | 国网安徽省电力有限公司 | Digital-analog integrated tester and digital-analog synchronous output method thereof |
| CN111049610A (en) * | 2019-12-12 | 2020-04-21 | 长园深瑞继保自动化有限公司 | Time synchronization management tester for testing relay protection device |
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| WO2013091277A1 (en) * | 2011-12-22 | 2013-06-27 | 山东电力研究院 | Iec61850-based synchronization performance test method for digital relay protection device |
| WO2014153764A1 (en) * | 2013-03-29 | 2014-10-02 | 国家电网公司 | Method and device for automatic test of relay protection function of intelligent substation |
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| CN103983878A (en) * | 2014-06-05 | 2014-08-13 | 贵州电力试验研究院 | Relay protection synchronization performance testing system and method based on random discrete time domain |
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| CN107340448A (en) * | 2016-11-22 | 2017-11-10 | 国家电网公司东北分部 | Utilize control voltage and the method for current phase measurement circuitry protection device vector |
| CN107340448B (en) * | 2016-11-22 | 2019-08-30 | 国家电网公司东北分部 | Utilize the method for control voltage and current phase measurement line protective devices vector |
| CN107765114A (en) * | 2017-09-14 | 2018-03-06 | 国网浙江省电力公司温州供电公司 | Test system and method for testing based on digital transformer protection device |
| CN108345243A (en) * | 2018-01-18 | 2018-07-31 | 国网浙江省电力有限公司电力科学研究院 | The digitized measurement tests FT3 to IEC61850-9-2 protocol conversion apparatus |
| CN110596485A (en) * | 2019-08-22 | 2019-12-20 | 国网安徽省电力有限公司 | Digital-analog integrated tester and digital-analog synchronous output method thereof |
| CN111049610A (en) * | 2019-12-12 | 2020-04-21 | 长园深瑞继保自动化有限公司 | Time synchronization management tester for testing relay protection device |
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| Publication number | Publication date |
|---|---|
| WO2013091277A1 (en) | 2013-06-27 |
| CN102495322B (en) | 2014-01-08 |
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Effective date of registration: 20130109 Address after: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Applicant after: SHANDONG ELECTRIC POWER Research Institute Applicant after: State Grid Corporation of China Address before: 250002 Ji'nan City Central District, Shandong, No. 2 South Road, No. 500 Applicant before: SHANDONG ELECTRIC POWER Research Institute |
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Inventor after: Jing Yugang Inventor after: Jing Junshuang Inventor after: Mou Xutao Inventor after: Wang Xin Inventor after: Liu Yanhua Inventor after: Zhang Guohui Inventor after: Wang Dapeng Inventor after: Su Wenbo Inventor after: Sun Yuntao Inventor after: Tang Xinjian Inventor after: Li Naiyong Inventor before: Jing Yugang Inventor before: Wang Xin Inventor before: Liu Yanhua Inventor before: Zhang Guohui Inventor before: Jing Junshuang Inventor before: Tang Xinjian Inventor before: Sun Yuntao |
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Free format text: CORRECT: INVENTOR; FROM: JING YUGANG WANG XIN LIU YANHUA ZHANG GUOHUI JING JUNSHUANG TANG XINJIAN SUN YUNTAO TO: JING YUGANG WANG XIN LIU YANHUA ZHANG GUOHUI WANG DAPENG SU WENBO SUN YUNTAO TANG XINJIAN LI NAIYONG JING JUNSHUANG MOU XUTAO |
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Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: Shandong Electric Power Research Institute Patentee after: State Grid Corporation of China Address before: 250002, No. 500, South Second Ring Road, Shizhong District, Shandong, Ji'nan Patentee before: Shandong Electric Power Research Institute Patentee before: State Grid Corporation of China |
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Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: SHANDONG ELECTRIC POWER Research Institute Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: State Grid Corporation of China |
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Effective date of registration: 20220127 Address after: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Patentee after: STATE GRID CORPORATION OF CHINA Address before: 250003 No. 2000, Wang Yue Road, Shizhong District, Ji'nan, Shandong Patentee before: SHANDONG ELECTRIC POWER Research Institute Patentee before: STATE GRID CORPORATION OF CHINA |
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