CN203414521U - Power distribution network internal overvoltage pre-warning system - Google Patents
Power distribution network internal overvoltage pre-warning system Download PDFInfo
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- CN203414521U CN203414521U CN201320564945.7U CN201320564945U CN203414521U CN 203414521 U CN203414521 U CN 203414521U CN 201320564945 U CN201320564945 U CN 201320564945U CN 203414521 U CN203414521 U CN 203414521U
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Abstract
The utility model discloses a power distribution network internal overvoltage pre-warning system. A power distribution network overvoltage monitoring special 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) is connected with an internal overvoltage recognition system (9) and an internal overvoltage pre-warning system (10) through an output end of the overvoltage monitoring server (4). The system disclosed by the utility model has the advantages that 1) remote monitoring can be realized at a control center, and classification and recognition are performed; 2) a measure for suppressing overvoltage can be provided, and direct guide is offered; 3) adverse impact is avoided.
Description
Technical field
The utility model belongs to electric power project engineering field, is 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, 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 there is Overvoltage, owing to failing timely failure judgement type, be difficult to determine that culprit is due to Overvoltage Amplitude or steepness, to surpass the ability to bear of equipment, or the dielectric level of equipment reduces institute to be caused, or protective device has problem, makes fault analysis and judgement reason become very difficult; Thereby can not targetedly corresponding superpotential effectively be suppressed or be prevented, more can not initiatively preventive measure and monitoring identification be integrated, realize the self-discovery of electric network fault, self judgment, oneself controls.
For Correct Analysis culprit, urgently develop high-performance, the real-time power distribution network over-voltage monitoring of robotization and prevent and treat intelligent system, so that can judge in time in power distribution network has 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, for electric system, carrying out crash analysis provides science real foundation.At present, though there is the waveform of voltage signal on-Line Monitor Device Real-Time Monitoring Overvoltage, can't identify and early warning power distribution network internal overvoltage.
Utility model content
The technical problems to be solved in the utility model is, the defect existing 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 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, improves the safety operation level of electric system.
The technical solution of the utility model is, the power distribution network internal overvoltage early warning system providing, referring to accompanying drawing 1, by power distribution network over-voltage, 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 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 superpotential data collecting card ARM9 processor 2 described in the output termination of special-purpose voltage divider 1; The input end of the first optic module 3 described in the output termination of this superpotential data collecting card ARM9 processor 2; The input end of over-voltage monitoring server 4 described in the 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 leakage current of an arrester data collecting card ARM9 processor 6 described in the output termination of wherein said leakage current of an arrester monitoring sensor 5; The input end of the second optic module 7 described in the 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 utility model forming 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 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, to superpotential early warning system 10, send order on the other hand, according to superpotential type, enter respectively and propose the measure of over-voltage suppression or start over-voltage suppression device, be convenient to engineering technical personnel and carry out failure restraint and eliminating.
Further, can be on the basis of above-mentioned power distribution network internal overvoltage early warning system of the present utility model, adopt optical fiber or wireless mode, set up on-line overvoltage monitor communication system, according to distribution net work structure, determine on-line overvoltage monitor infield and quantity, in transformer station, set up data storage and Analysis server center, in electric substation, switching station is installed on-line overvoltage monitor, form the superpotential on-line monitoring system matching with distribution net work structure, draw the safety assessment to power distribution network internal overvoltage, thereby instruct the operation of power distribution network internal overvoltage maintenance work.
The beneficial effects of the utility model are:
1) ,Neng control center carries out online remote monitoring to transformer station, the switching station superpotential operation conditions of monitoring device is housed, and the internal overvoltage signal monitoring is carried out to Classification and Identification;
2), according to superpotential recognition result, superpotential early warning system can provide the measure of over-voltage suppression or start superpotential restraining device, 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.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a specific embodiment of the utility model power distribution network internal overvoltage early warning system, in figure, is denoted as:
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 the utility model power distribution network internal overvoltage early warning system, 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; The FL2440ARM type embedded board that superpotential data collecting card ARM9 processor 2 and leakage current of an arrester data collecting card ARM9 processor 6 all adopt Fei Ling company to produce, this ARM development board carries A/D converter, and the A/D converter being 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 Wuhan, China Xin Huayi automatic control equipment company limited to produce, the double-core server that its cabinet model is IPC-610-L; Leakage current of an arrester monitoring sensor 5 adopts the FMU-11M-A1 type sensor that above sea otter Yuan Zhiguang company produces;
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 more than forming, is proved to be respond well, esy to use, safe and reliable through trial-production and trial run, reaches designing requirement completely.
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 superpotential data collecting card ARM9 processor (2) described in the output termination of special-purpose voltage divider (1), the input end of the first optic module (3) described in the output termination of this superpotential data collecting card ARM9 processor (2), the input end of over-voltage monitoring server (4) described in the 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 leakage current of an arrester data collecting card ARM9 processor (6) described in the output termination of wherein said leakage current of an arrester monitoring sensor (5), the input end of the second optic module (7) described in the 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 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).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320564945.7U CN203414521U (en) | 2013-09-12 | 2013-09-12 | Power distribution network internal overvoltage pre-warning system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201320564945.7U CN203414521U (en) | 2013-09-12 | 2013-09-12 | Power distribution network internal overvoltage pre-warning system |
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| CN203414521U true CN203414521U (en) | 2014-01-29 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454487A (en) * | 2013-09-12 | 2013-12-18 | 国家电网公司 | Internal overvoltage early warning system of power distribution network |
| CN104950164A (en) * | 2015-05-25 | 2015-09-30 | 广东电网有限责任公司中山供电局 | Lightning overvoltage monitoring system for substation secondary system |
-
2013
- 2013-09-12 CN CN201320564945.7U patent/CN203414521U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454487A (en) * | 2013-09-12 | 2013-12-18 | 国家电网公司 | Internal overvoltage early warning system of power distribution network |
| CN104950164A (en) * | 2015-05-25 | 2015-09-30 | 广东电网有限责任公司中山供电局 | Lightning overvoltage monitoring system for substation secondary system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180712 Address after: 410004 398 new Shao Dong Road, Tianxin District, Changsha, Hunan Co-patentee after: STATE GRID HUNAN ELECTRIC POWER COMPANY LIMITED ELECTRIC POWER Research Institute Patentee after: STATE GRID HUNAN ELECTRIC POWER Co.,Ltd. Co-patentee after: State Grid Corporation of China Address before: 100033 West Chang'an Avenue, Xicheng District, Xicheng District, Beijing Co-patentee before: STATE GRID HUNAN ELECTRIC POWER COMPANY Research Institute Patentee before: State Grid Corporation of China Co-patentee before: XIANG-ELECTRIC EXPERIMENT AND RESEARCH TECHNOLOGY COMPANY OF HUNAN PROVINCE |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |