CN103454487A - Internal overvoltage early warning system of power distribution network - Google Patents
Internal overvoltage early warning system of power distribution network Download PDFInfo
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- CN103454487A CN103454487A CN2013104138798A CN201310413879A CN103454487A CN 103454487 A CN103454487 A CN 103454487A CN 2013104138798 A CN2013104138798 A CN 2013104138798A CN 201310413879 A CN201310413879 A CN 201310413879A CN 103454487 A CN103454487 A CN 103454487A
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Abstract
The invention discloses an internal overvoltage early warning system of a power distribution network. According to the internal overvoltage early warning system of the power distribution network, a power distribution network overvoltage monitoring voltage divider (1), an overvoltage data acquisition card ARM9 processor (2), a first optical fiber module (3) and an overvoltage monitoring server (4) are sequentially connected in series, a lightning arrester leakage current monitoring sensor (5), a lightning arrester leakage current data acquisition card ARM9 processor (6), a second optical fiber module (7) and a lightning arrester monitoring server (8) are sequentially connected in series, an output end of the lightning arrester monitoring server (8) and an output end of the overvoltage monitoring server (4) are connected with an internal overvoltage identification system (9) and an internal overvoltage early warning system (10). The internal overvoltage early warning system of the power distribution network can achieve remote monitoring and classified identification in a control center, can provide measures for restraining overvoltage and provide direct guide, and has no negative effect.
Description
Technical field
The invention belongs to the electric power project engineering field, be specifically related to a kind of power distribution network internal overvoltage early warning system.
Background technology
Modern society requires power grid enterprises that electric power supply safe, reliable, clean, high-quality is provided, and intelligent grid is considered as to developing direction.And China's sustained economic development, the electricity needs rapid growth; Along with the development of digital economy and IT technology, the requirement of electricity consumer is also more and more higher.In recent years, although a large amount of lightning arresters have been installed, but when Overvoltage occurring, owing to failing timely failure judgement type, be difficult to determine that culprit is to surpass the ability to bear of equipment due to Overvoltage Amplitude or steepness, perhaps the dielectric level of equipment reduction institute causes, or protective device has problem, makes the fault analysis and judgement reason become very difficult; Thereby can not effectively suppress or prevent corresponding superpotential targetedly, more can not initiatively preventive measure and monitoring identification be integrated, realize the self-discovery of electric network fault, self judgment, the oneself controls.
For the Correct Analysis culprit, urgently develop high-performance, the real-time power distribution network over-voltage monitoring of robotization and prevent and treat intelligent system, in order to can judge in time in power distribution network and have or not superpotential to occur, voltage waveform parameter before and after the superpotential of catching and preserving occurs, reproduce in real time or afterwards superpotential generating process, carrying out crash analysis for electric system provides science real foundation.At present, though the waveform of voltage signal on-Line Monitor Device Real-Time Monitoring Overvoltage is arranged, can't be identified and early warning the power distribution network internal overvoltage.
Summary of the invention
The technical problem to be solved in the present invention is, the defect existed for prior art, a kind of power distribution network internal overvoltage early warning system is provided, use this system energy body not go out family and but can accurately recognize Overvoltage and the type thereof that the outdoor electricity distribution net occurred, propose solution targetedly or start the equipment of over-voltage suppression, the generation of over-voltage suppression accident timely and accurately, improve the safety operation level of electric system.
Technical scheme of the present invention is, the power distribution network internal overvoltage early warning system provided, referring to accompanying drawing 1, monitor special-purpose voltage divider 1, superpotential data collecting card ARM9 processor 2, the first optic module 3, over-voltage monitoring server 4, leakage current of an arrester monitoring sensor 5, leakage current of an arrester data collecting card ARM9 processor 6, the second optic module 7, lightning arrester monitor server 8, internal overvoltage recognition system 9 and internal overvoltage early warning system 10 by power distribution network over-voltage and connect to form.
Wherein power distribution network over-voltage is monitored special-purpose voltage divider 1, superpotential data collecting card ARM9 processor 2, the first optic module 3, over-voltage monitoring server 4 and is connected successively.
Described power distribution network over-voltage is monitored the input end of the described superpotential data collecting card of the output termination ARM9 processor 2 of special-purpose voltage divider 1; The input end of described first optic module 3 of output termination of this superpotential data collecting card ARM9 processor 2; The input end of the described over-voltage monitoring server 4 of output termination of this first optic module 3.
Described leakage current of an arrester monitoring sensor 5, leakage current of an arrester data collecting card ARM9 processor 6, the second optic module 7, lightning arrester monitor server 8 be series connection successively also.
The input end of the described leakage current of an arrester data collecting card of the output termination ARM9 processor 6 of wherein said leakage current of an arrester monitoring sensor 5; The input end of described second optic module 7 of output termination of this leakage current of an arrester data collecting card ARM9 processor 6; The output terminal of this second optic module 7 is connected with the input end of described lightning arrester monitor server 8.
The input end of described internal overvoltage the recognition system 9 and output terminal of the output terminal of this lightning arrester monitor server 8 and above-mentioned over-voltage monitoring server 4 is connected in parallel.The output terminal of this internal overvoltage recognition system 9 connects the input end of described internal overvoltage early warning system 10.
When the power distribution network internal overvoltage early warning system of the present invention formed is thus used, its internal overvoltage recognition system 9, superpotential early warning system 10 are arranged on to each monitoring platform center.The signal that this monitoring platform center collection over-voltage monitoring server 4 and lightning arrester monitor server 8 collect, be sent to internal overvoltage recognition system 9, through the intelligent diagnostics analysis, in order to distinguish internal overvoltage and exterior overvoltage, if internal overvoltage signal, to internal overvoltage recognition system 9, send internal overvoltage signal recognition instruction, carry out overvoltage signal processing, feature extraction and type identification, diagnosis Overvoltage type; Diagnostic result is searched for engineering technical personnel on the one hand, send order to superpotential early warning system 10 on the other hand, according to superpotential type, enter respectively the measure that proposes over-voltage suppression or start the over-voltage suppression device, be convenient to engineering technical personnel and carry out failure restraint and eliminating.
Further, can be on the basis of the power distribution network internal overvoltage early warning system of the invention described above, adopt optical fiber or wireless mode, set up the on-line overvoltage monitor communication system, according to distribution net work structure, determine on-line overvoltage monitor infield and quantity, set up data storage and Analysis server center in transformer station, in electric substation, switching station is installed on-line overvoltage monitor, form the superpotential on-line monitoring system matched with distribution net work structure, draw the safety assessment to the power distribution network internal overvoltage, thereby instruct the operation of power distribution network internal overvoltage maintenance work.
The invention has the beneficial effects as follows:
1), can carry out online remote monitoring to transformer station, switching station superpotential operation conditions that monitoring device is housed in control center, and the internal overvoltage signal monitored is carried out to Classification and Identification;
2), according to the superpotential recognition result, the superpotential early warning system can provide the measure of over-voltage suppression or start superpotential restraining device, the early warning assessment result can provide for the operation maintenance of power distribution network over-voltage direct guidance;
3), the operation of monitoring device does not produce any negative effect to the original device of electric system.
The accompanying drawing explanation
The structured flowchart that Fig. 1 is a specific embodiment of power distribution network internal overvoltage early warning system of the present invention is denoted as in figure:
1-power distribution network over-voltage is monitored special-purpose voltage divider,
2-superpotential data collecting card ARM9 processor,
The 3-the first optic module,
4-over-voltage monitoring server,
5-leakage current of an arrester monitoring sensor,
6-leakage current of an arrester data collecting card ARM9 processor,
The 7-the second optic module,
8-lightning arrester monitor server,
9-internal overvoltage recognition system,
10-internal overvoltage early warning system.
Embodiment:
Referring to accompanying drawing 1, this embodiment of power distribution network internal overvoltage early warning system of the present invention, its power distribution network over-voltage is monitored the special-purpose voltage divider of HV-100 type that the special-purpose voltage divider 1 Chinese Suzhou of employing Hai Wo company produces; Superpotential data collecting card ARM9 processor 2 and leakage current of an arrester data collecting card ARM9 processor 6 all adopt and fly the FL2440ARM type embedded board that icepro company produces, this ARM development board carries A/D converter, and the A/D converter carried by this ARM development board is as A/D converter; The GLC-SX-MM type multimode light module that the first optic module 3 and the second optic module 7 all adopt Cisco System Co. to produce; Over-voltage monitoring server 4 and lightning arrester monitor server 8, internal overvoltage recognition system 9 and internal overvoltage early warning system 10 all adopt the prosperous China of Wuhan, China easy automatic control equipment company limited to produce, the double-core server that its cabinet model is IPC-610-L; The FMU-11M-A1 type sensor that leakage current of an arrester monitoring sensor 5 adopts upper sea otter source Zhi Guang company to produce;
Described power distribution network over-voltage is monitored special-purpose voltage divider 1, superpotential data collecting card ARM9 processor 2, the first optic module 3, over-voltage monitoring server 4, leakage current of an arrester monitoring sensor 5, leakage current of an arrester data collecting card ARM9 processor 6, the second optic module 7, lightning arrester monitor server 8, internal overvoltage recognition system 9 and internal overvoltage early warning system 10 are by technique scheme, with reference to connected mode shown in accompanying drawing 1, connect, wherein power distribution network over-voltage is monitored special-purpose voltage divider 1, superpotential data collecting card ARM9 processor 2, the first optic module 3, over-voltage monitoring server 4 is connected successively.Leakage current of an arrester monitoring sensor 5, leakage current of an arrester data collecting card ARM9 processor 6, the second optic module 7, lightning arrester monitor server 8 are connected successively.The output terminal that wherein power distribution network over-voltage is monitored special-purpose voltage divider 1 is taken over the input end of voltage data capture card ARM9 processor 2; The input end of output termination first optic module 3 of superpotential data collecting card ARM9 processor 2; The output terminal of the first optic module 3 is taken over the input end of voltage monitoring server 4.The input end of the output termination leakage current of an arrester data collecting card ARM9 processor 6 of leakage current of an arrester monitoring sensor 5; The input end of output termination second optic module 7 of leakage current of an arrester data collecting card ARM9 processor 6; The output terminal of the second optic module 7 is connected with the input end of lightning arrester monitor server 8.The be connected in parallel input end of internal overvoltage recognition system 9 of the output terminal of the output terminal of lightning arrester monitor server 8 and over-voltage monitoring server 4.The output terminal of internal overvoltage recognition system 9 connects the input end of internal overvoltage early warning system 10.
The power distribution network internal overvoltage early warning system product of this embodiment of above formation, be proved to be respond well, esy to use, safe and reliable through trial-production and trial run, reaches designing requirement fully.
Claims (1)
1. a power distribution network internal overvoltage early warning system, it is characterized in that, it monitors special-purpose voltage divider (1) by power distribution network over-voltage, superpotential data collecting card ARM9 processor (2), the first optic module (3), over-voltage monitoring server (4), leakage current of an arrester monitoring sensor (5), leakage current of an arrester data collecting card ARM9 processor (6), the second optic module (7), lightning arrester monitor server (8), internal overvoltage recognition system (9) and internal overvoltage early warning system (10) connect to form, wherein power distribution network over-voltage is monitored special-purpose voltage divider (1), superpotential data collecting card ARM9 processor (2), the first optic module (3), over-voltage monitoring server (4) is connected successively, described power distribution network over-voltage is monitored the input end of the described superpotential data collecting card of the output termination ARM9 processor (2) of special-purpose voltage divider (1), the input end of described the first optic module of the output termination of this superpotential data collecting card ARM9 processor (2) (3), the input end of the described over-voltage monitoring server of the output termination of this first optic module (3) (4), described leakage current of an arrester monitoring sensor (5), leakage current of an arrester data collecting card ARM9 processor (6), the second optic module (7), lightning arrester monitor server (8) be series connection successively also, the input end of the described leakage current of an arrester data collecting card of the output termination ARM9 processor (6) of wherein said leakage current of an arrester monitoring sensor (5), the input end of described the second optic module of the output termination of this leakage current of an arrester data collecting card ARM9 processor (6) (7), the output terminal of this second optic module (7) is connected with the input end of described lightning arrester monitor server (8), the input end of described internal overvoltage recognition system (9) and the output terminal of the output terminal of this lightning arrester monitor server (8) and above-mentioned over-voltage monitoring server (4) is connected in parallel, the output terminal of this internal overvoltage recognition system (9) connects the input end of described internal overvoltage early warning system (10).
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| CN2013104138798A CN103454487A (en) | 2013-09-12 | 2013-09-12 | Internal overvoltage early warning system of power distribution network |
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Cited By (5)
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| CN106291260A (en) * | 2016-10-31 | 2017-01-04 | 国网山东省电力公司济南市长清区供电公司 | Power distribution network outage analysis, early warning system |
| CN106405334A (en) * | 2016-10-31 | 2017-02-15 | 国网山东省电力公司济南市长清区供电公司 | Direct-buried type power transmission line protection device |
| CN107831355A (en) * | 2017-10-26 | 2018-03-23 | 国网重庆市电力公司检修分公司 | Transformer overvoltage method for early warning based on a large amount of overvoltage number data |
| CN108089082A (en) * | 2018-01-16 | 2018-05-29 | 中国南方电网有限责任公司超高压输电公司曲靖局 | High voltage direct current neutral bus arrester performance on-line monitoring system and method |
| CN108414862A (en) * | 2018-03-09 | 2018-08-17 | 中国南方电网有限责任公司超高压输电公司曲靖局 | High voltage direct current neutral bus arrester energy is resistant to on-line monitoring system and method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106291260A (en) * | 2016-10-31 | 2017-01-04 | 国网山东省电力公司济南市长清区供电公司 | Power distribution network outage analysis, early warning system |
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| CN107831355A (en) * | 2017-10-26 | 2018-03-23 | 国网重庆市电力公司检修分公司 | Transformer overvoltage method for early warning based on a large amount of overvoltage number data |
| CN108089082A (en) * | 2018-01-16 | 2018-05-29 | 中国南方电网有限责任公司超高压输电公司曲靖局 | High voltage direct current neutral bus arrester performance on-line monitoring system and method |
| CN108089082B (en) * | 2018-01-16 | 2023-11-24 | 中国南方电网有限责任公司超高压输电公司曲靖局 | High-voltage direct-current neutral bus arrester performance on-line monitoring system and method |
| CN108414862A (en) * | 2018-03-09 | 2018-08-17 | 中国南方电网有限责任公司超高压输电公司曲靖局 | High voltage direct current neutral bus arrester energy is resistant to on-line monitoring system and method |
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Application publication date: 20131218 |