CN103076515A - Merging unit integral detection and evaluation system - Google Patents
Merging unit integral detection and evaluation system Download PDFInfo
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- CN103076515A CN103076515A CN2012105863732A CN201210586373A CN103076515A CN 103076515 A CN103076515 A CN 103076515A CN 2012105863732 A CN2012105863732 A CN 2012105863732A CN 201210586373 A CN201210586373 A CN 201210586373A CN 103076515 A CN103076515 A CN 103076515A
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Abstract
The invention provides a merging unit integral detection and evaluation system, which comprises a three-phase alternative-current standard source, a benchmark merging unit, an electronic-type transformer simulator, a merging unit, an industrial Ethernet switch and an electronic-type transformer state analysis and evaluation platform; the three-phase alternative-current standard source is respectively communicated with the benchmark merging unit and the electronic-type transformer simulator; the electronic-type transformer simulator is connected with the industrial Ethernet switch through the merging unit; and the benchmark merging unit, the industrial Ethernet switch and the electronic-type transformer state analysis and evaluation platform are sequentially connected with one another. The merging unit integral detection and evaluation system is important for researching a method for detecting and evaluating the merging unit, providing quality analog quantity acquisition to an intelligent transformer substation and the stable running of an electric network.
Description
Technical field
The invention belongs to field of power, be specifically related to a kind of merge cells whole detection and evaluating system.
Background technology
Merge cells: Merging Unit, be called for short MU.The electric parameters that mutual inductor is transmitted merges and processes synchronously, and the digital signal after will processing is transmitted to the device of bay level equipment use according to specific format.Merge cells is the interface arrangement of electronic current, voltage transformer (VT).Merge cells has been realized sharing and digitizing of process layer data to a certain extent, and it acts on very important as following the digital transformer substation wall of IEC61850 standard, the Data Source of station level equipment.
Merge cells defines mainly for the electric mutual inductor of digital output, and its major function is synchronous acquisition three-phase current, information of voltage, and gathers by certain format and to export to bay device.Merge cells is to wherein voltage transformer (VT) summation current transformer synchronizing capacity of access, and with fan-out capability behind each road electric current and voltage data acquisition, directly reacted the performance of merge cells.
The principal element that affects the merge cells performance mainly contains the following aspects, sees Table 1:
Table 1 merge cells influence factor
| Sequence number | Influence factor |
| 1 | The humiture impact |
| 2 | The electromagnetic environment impact |
| 3 | Getting to affect |
| 4 | The degree of aging impact |
| 5 | The impact of digital output degree of stability |
| 6 | Affect with the data acquisition unit interoperability |
| 7 | To the time capacity |
| 8 | The impact of internal data processing power |
Merge cells is the important step that whole intelligent substation gathers analog quantity, the quality of merge cells ability of data processing is the stable operation of the whole electrical network of impact directly, so be combined the research of the method for the detection of unit and assessment, for the collection that the analog quantity of high-quality is provided for intelligent substation, the stable operation of electrical network is most important.
Summary of the invention
For overcoming defects, the invention provides a kind of merge cells whole detection and evaluating system, be combined the research of the method for the detection of unit and assessment, for the collection that the analog quantity of high-quality is provided for intelligent substation, the stable operation of electrical network is most important.
For achieving the above object, the invention provides a kind of merge cells whole detection and evaluating system, its improvements are, described system comprises: three-phase AC standard source, benchmark merge cells, electronic mutual inductor emulator, merge cells, industrial ethernet switch and electronic mutual inductor condition analysis and assessment platform; Described three-phase AC standard source is communicated by letter with described electronic mutual inductor emulator with described benchmark merge cells respectively; Described electronic mutual inductor emulator is connected with described industrial ethernet switch by described merge cells; Described benchmark merge cells, described industrial ethernet switch and the electronic mutual inductor condition analysis and assessment platform of being connected connect successively.
In the optimal technical scheme provided by the invention, described electronic mutual inductor condition analysis and assessment platform comprises: benchmark driving source, tested simulation merge cells and checkout equipment; Described checkout equipment receives respectively the signal of described benchmark driving source and described tested simulation merge cells; Described benchmark driving source is to described tested simulation merge cells signal transmission.
In the second optimal technical scheme provided by the invention, described checkout equipment comprises: receive recording the waveform unit, receive the reception waveform unit of described tested simulation merge cells signal and receiving respectively the described computational analysis unit that records waveform unit and described reception waveform unit of described benchmark driving source simulating signal.
In the 3rd optimal technical scheme provided by the invention, described computational analysis unit calculates following parameter with the described signal that records waveform unit and described reception waveform unit that receives: amplitude precision, signal lag, transmission unevenness and delay jitter.
Compared with the prior art, a kind of merge cells whole detection provided by the invention and evaluating system, this system can come the comprehensive unit that is combined to detect from aspects such as the physical characteristics of merge cells and communication performances, and the merge cells resistance to overturning is significant for improving.
Description of drawings
Fig. 1 is the structural representation of merge cells whole detection and evaluating system.
Fig. 2 is the structural representation of electronic mutual inductor condition analysis and assessment platform.
Embodiment
As shown in Figure 1, a kind of merge cells whole detection and evaluating system comprise: three-phase AC standard source, benchmark merge cells, electronic mutual inductor emulator, merge cells, industrial ethernet switch and electronic mutual inductor condition analysis and assessment platform; Described three-phase AC standard source is communicated by letter with described electronic mutual inductor emulator with described benchmark merge cells respectively; Described electronic mutual inductor emulator is connected with described industrial ethernet switch by described merge cells; Described benchmark merge cells, described industrial ethernet switch and the electronic mutual inductor condition analysis and assessment platform of being connected connect successively.
Described electronic mutual inductor condition analysis and assessment platform comprises: benchmark driving source, tested simulation merge cells and checkout equipment; Described checkout equipment receives respectively the signal of described benchmark driving source and described tested simulation merge cells; Described benchmark driving source is to described tested simulation merge cells signal transmission.
Described checkout equipment comprises: receive recording the waveform unit, receive the reception waveform unit of described tested simulation merge cells signal and receiving respectively the described computational analysis unit that records waveform unit and described reception waveform unit of described benchmark driving source simulating signal.
Described computational analysis unit calculates following parameter with the described signal that records waveform unit and described reception waveform unit that receives: amplitude precision, signal lag, transmission unevenness and delay jitter.
Being combined the whole unit detection by following examples is described further with evaluating system.
Build for merge cells and detect and the test environment of assessing.
Utilize three-phase AC standard source, benchmark merge cells, electronic mutual inductor emulator, industrial ethernet switch, electric mutual inductor condition analysis and assessment software platform to build test environment as shown in Figure 1.The following characteristic of investigating merge cells under the environmental impacts such as EMC, temperature variation, vibration detects and assesses:
1) transient characterisitics;
2) steady-state characteristic;
3) transmission precision;
4) amplitude versus frequency characte;
5) phase-frequency characteristic.
Utilize electronic transformer simulator, time calibration device, GPS timing device, electronic mutual inductor condition analysis and assessment software platform, build test environment as shown in Figure 1, the performance that is combined the following several respects in unit under the environmental impacts such as EMC, temperature variation, vibrations detects and assesses:
The data transmission time-delay;
The data transmission delay jitter;
3) transmission time interval of Frame and transmission time interval shake;
4) data frame format, content integrity;
5) data transmission integrality;
6) the punctual ability of merge cells;
7) merge cells and electric mutual inductor synchronous coordination ability.
8) merge cells data-interface processing power.
As shown in Figure 2, be that tested simulation merge cells sends simulating signal by the benchmark driving source, compare by digital message and the benchmark driving source that contrasts tested simulation merge cells output, carry out analytical calculation by inspection machine and draw: amplitude precision; Signal lag; The transmission unevenness; Delay jitter.
What need statement is that content of the present invention and embodiment are intended to prove the practical application of technical scheme provided by the present invention, should not be construed as the restriction to protection domain of the present invention.Those skilled in the art can do various modifications, be equal to and replace or improve inspired by the spirit and principles of the present invention.But these changes or modification are all in the protection domain that application is awaited the reply.
Claims (4)
1. a merge cells whole detection and evaluating system, it is characterized in that, described system comprises: three-phase AC standard source, benchmark merge cells, electronic mutual inductor emulator, merge cells, industrial ethernet switch and electronic mutual inductor condition analysis and assessment platform; Described three-phase AC standard source is communicated by letter with described electronic mutual inductor emulator with described benchmark merge cells respectively; Described electronic mutual inductor emulator is connected with described industrial ethernet switch by described merge cells; Described benchmark merge cells, described industrial ethernet switch and the electronic mutual inductor condition analysis and assessment platform of being connected connect successively.
2. system according to claim 1 is characterized in that, described electronic mutual inductor condition analysis and assessment platform comprises: benchmark driving source, tested simulation merge cells and checkout equipment; Described checkout equipment receives respectively the signal of described benchmark driving source and described tested simulation merge cells; Described benchmark driving source is to described tested simulation merge cells signal transmission.
3. system according to claim 2, it is characterized in that, described checkout equipment comprises: receive recording the waveform unit, receive the reception waveform unit of described tested simulation merge cells signal and receiving respectively the described computational analysis unit that records waveform unit and described reception waveform unit of described benchmark driving source simulating signal.
4. system according to claim 3, it is characterized in that, described computational analysis unit calculates following parameter with the described signal that records waveform unit and described reception waveform unit that receives: amplitude precision, signal lag, transmission unevenness and delay jitter.
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Cited By (9)
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| CN103344856A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Method and device for testing merging unit |
| CN103439597A (en) * | 2013-08-06 | 2013-12-11 | 国家电网公司 | Merging unit synchronous punctual tester based on analog quantity digitized transmission and method therefore |
| CN103592539A (en) * | 2013-11-07 | 2014-02-19 | 国家电网公司 | Electrical quantity merging unit used for dynamic simulation system |
| CN103616580A (en) * | 2013-11-08 | 2014-03-05 | 北京博电新力电气股份有限公司 | Data conversion angular difference test method of merging units |
| CN103837771A (en) * | 2014-02-28 | 2014-06-04 | 倪兆瑞 | Merging unit time delay parameter measurement method of conventional mutual inductor |
| CN103969524A (en) * | 2014-04-18 | 2014-08-06 | 国家电网公司 | Intelligent scanning electronic transformer combination unit characteristic testing method based on feedback |
| CN104007346A (en) * | 2014-05-28 | 2014-08-27 | 广西电网公司电力科学研究院 | Analog quantity merging unit transient state delay test method based on frequency scanning |
| CN105785183A (en) * | 2016-03-23 | 2016-07-20 | 中国电力科学研究院 | Online self-monitoring system for electronic transformer measurement circuit |
| CN108021125A (en) * | 2017-12-28 | 2018-05-11 | 深圳市永达电子信息股份有限公司 | Industrial system signal of communication detecting system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103344856B (en) * | 2013-06-25 | 2016-01-20 | 国家电网公司 | A kind of merge cells method of testing and device |
| CN103344856A (en) * | 2013-06-25 | 2013-10-09 | 国家电网公司 | Method and device for testing merging unit |
| CN103439597A (en) * | 2013-08-06 | 2013-12-11 | 国家电网公司 | Merging unit synchronous punctual tester based on analog quantity digitized transmission and method therefore |
| CN103592539A (en) * | 2013-11-07 | 2014-02-19 | 国家电网公司 | Electrical quantity merging unit used for dynamic simulation system |
| CN103592539B (en) * | 2013-11-07 | 2016-04-20 | 国家电网公司 | A kind of electric parameters merge cells for dynamic simulator system |
| CN103616580A (en) * | 2013-11-08 | 2014-03-05 | 北京博电新力电气股份有限公司 | Data conversion angular difference test method of merging units |
| CN103616580B (en) * | 2013-11-08 | 2016-04-13 | 北京博电新力电气股份有限公司 | Merge cells data conversion angular difference method of testing |
| CN103837771A (en) * | 2014-02-28 | 2014-06-04 | 倪兆瑞 | Merging unit time delay parameter measurement method of conventional mutual inductor |
| CN103969524A (en) * | 2014-04-18 | 2014-08-06 | 国家电网公司 | Intelligent scanning electronic transformer combination unit characteristic testing method based on feedback |
| CN103969524B (en) * | 2014-04-18 | 2016-11-02 | 国家电网公司 | Intelligent scanning merging unit of electronic transformer characteristic test method based on feedback |
| CN104007346A (en) * | 2014-05-28 | 2014-08-27 | 广西电网公司电力科学研究院 | Analog quantity merging unit transient state delay test method based on frequency scanning |
| CN104007346B (en) * | 2014-05-28 | 2017-02-22 | 广西电网公司电力科学研究院 | Analog quantity merging unit transient state delay test method based on frequency scanning |
| CN105785183A (en) * | 2016-03-23 | 2016-07-20 | 中国电力科学研究院 | Online self-monitoring system for electronic transformer measurement circuit |
| CN108021125A (en) * | 2017-12-28 | 2018-05-11 | 深圳市永达电子信息股份有限公司 | Industrial system signal of communication detecting system |
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Application publication date: 20130501 |