CN102937690A - Lightning stroke failure disconnection positioning method based on information interaction - Google Patents

Lightning stroke failure disconnection positioning method based on information interaction Download PDF

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Publication number
CN102937690A
CN102937690A CN201210453938XA CN201210453938A CN102937690A CN 102937690 A CN102937690 A CN 102937690A CN 201210453938X A CN201210453938X A CN 201210453938XA CN 201210453938 A CN201210453938 A CN 201210453938A CN 102937690 A CN102937690 A CN 102937690A
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CN
China
Prior art keywords
lightning
voltage data
phase
voltage
think
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Pending
Application number
CN201210453938XA
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Chinese (zh)
Inventor
房牧
许明
王肃
谢荣昆
刘书忠
杜琰
王晖
王晓燕
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State Grid Corp of China SGCC
Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Jinan Power Supply Co of State Grid Shandong Electric Power Co Ltd
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Priority to CN201210453938XA priority Critical patent/CN102937690A/en
Publication of CN102937690A publication Critical patent/CN102937690A/en
Pending legal-status Critical Current

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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04SSYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00Systems supporting electrical power generation, transmission or distribution
    • Y04S10/50Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
    • Y04S10/52Outage or fault management, e.g. fault detection or location

Abstract

The invention discloses a lightning stroke failure disconnection positioning method based on information interaction. When lightning stroke failure occurs on a power transmission line, the geographic position of the lightning stroke breakpoint can be positioned by collecting section switch voltage data, tapping switch voltage data and intelligent meter voltage data, judging the collected voltage data, inputting the judged abnormal data to a geographic information system (GIS) system and combining line device topology information in the GIS system. By means of the lightning stroke failure disconnection positioning method, real-time monitoring and geographic positioning on the lightning failure can be achieved, time, labor and cost for line maintenance are greatly reduced, simultaneously safety hazards caused by all factors like the fact that the lightning stroke breakpoint cannot be judged from the outside of the cable and working staff are not careful can be avoided, and safety in power transmission is effectively improved.

Description

Lightning fault broken string localization method based on information interaction
Technical field
The invention provides a kind of lightning fault broken string localization method, specifically a kind of lightning fault broken string localization method based on information interaction.
Background technology
At present, Some Domestic urban electricity supply enterprise has started intelligent power distribution network construction, when building electrical power distribution automatization system, build information interactive bus, realized the integrated with information non real-time, that control and manage in real time of the related service systems such as power distribution automation, dispatching automation EMS, production management PMS, 95598 customer services, marketing management, electricity consumption collection.
In recent years along with the continuous lifting of line insulation rate, aerial insulated wire constantly increases because thunderbolt causes the accident of broken string, because insulated wire has the insulation course coating, when lightning surge causes insulator arc-over and punctures wire insulation, breakdown insulation course is Pinhole-shaped, the power frequency short-circuit current electric arc that continues is subjected to the obstruct of insulation course on every side, can not be at its surface sliding, charge concentration is discharged at breakdown point, the arc root can only be in the burning of insulation breakdown point, and the utmost point before the isolating switch action fitly blows wire in the short time.When wire aluminium core blows, outer insulation is disconnected, although also might produce the situation that broken string also continues to send electricity, becomes the major safety risks of electric power enterprise in producing, thereby, very necessary for timely discovery and the repairing of lightning fault break point.
For above-mentioned problem, and the information interaction function of combined with intelligent power distribution network, a kind of lightning fault broken string localization method based on information interaction has been proposed.
Summary of the invention
The invention provides a kind of lightning fault broken string localization method based on information interaction, efficiently solve the problem that in time to find and can't accurately locate the lightning failure point of circuit.
In order to address the above problem, the present invention by the following technical solutions: the lightning fault broken string localization method based on information interaction, it is characterized in that, may further comprise the steps:
1) gathers the voltage data of each block switch, carry out break point and judge;
2) gather the voltage data of all demarcation switch, carry out break point and judge;
3) gather the voltage data of all intelligent electric meters, carry out break point and judge;
4) with one or more result of determination data input generalized information systems in the above-mentioned steps, position the geographic position of lightning-caused breaking point in conjunction with the line facility topology information in the generalized information system.
Preferably, described voltage data by block switch carries out the break point judgment basis and comprises:
If 1a) comparison result of the voltage data of any one block switch collection is: (| U Abt|>U Zd) ﹠amp; (| U Bct|<U Zd), think that then A phase lightning-caused breaking fault occurs in this block switch front side,
If 1b) comparison result of the voltage data of any one block switch collection is:
| U Abt|>U ZdAnd | U Bct|>U Zd, think that then B phase lightning-caused breaking fault occurs in this block switch front side,
If 1c) comparison result of the voltage data of any one block switch collection is:
(| U Abt|<U Zd) ﹠amp; (| U Bct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this block switch front side,
Wherein, U AbtAnd U BctBe respectively the Sudden Changing Rate of AB phase line voltage and BC phase line voltage, U ZdBe broken string voltage setting valve.
Preferably, described voltage data by demarcation switch carries out the break point judgment basis and comprises:
If 2a) comparison result of the voltage data of any one demarcation switch collection is: (| U Abt|>U Zd) ﹠amp; (| U Bct|<U Zd), think that then A phase lightning-caused breaking fault occurs in this block switch front side,
If 2b) comparison result of the voltage data of any one demarcation switch collection is: | U Abt|>U ZdAnd | U Bct|>U Zd, think that then B phase lightning-caused breaking fault occurs in this block switch front side,
If 2c) comparison result of the voltage data of any one demarcation switch collection is: (| U Abt|<U Zd) ﹠amp; (| U Bct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this block switch front side,
Wherein, U AbtAnd U BctBe respectively the Sudden Changing Rate of AB phase line voltage and BC phase line voltage, U ZdBe broken string voltage setting valve.
Preferably, described voltage data by intelligent electric meter carries out the break point judgment basis and comprises:
If 3a) comparison result of the voltage data of any one intelligent electric meter collection is:
(| U At|>U Zd) ﹠amp; (| U Bt|<U Zd) ﹠amp; (| U Ct|>U Zd), think that then A phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
If 3b) comparison result of the voltage data of any one intelligent electric meter collection is
(| U At|>U Zd) ﹠amp; (| U Bt|>U Zd) ﹠amp; (| U Ct|<U Zd), think that then B phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
3c) if the comparison result of the voltage data of any one intelligent electric meter collection is (| U At|<U Zd) ﹠amp; (| U Bt|>U Zd) ﹠amp; (| U Ct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
Wherein, U At, U Bt, U CtBe respectively the Sudden Changing Rate of A phase, B phase, C phase voltage, U ZdBe broken string voltage setting valve.
The invention has the beneficial effects as follows:
1, this invention has realized the Real-Time Monitoring to lightning fault, time, manpower and the cost of line upkeep have greatly been saved, avoided simultaneously the potential safety hazard that all factors cause such as can't judging from the cable outside because of the careless general idea of staff, thunderbolt breakpoint, Effective Raise the security of electric power transfer.
2, this invention combination by decision data and generalized information system realizes the geo-location of thunderbolt breakpoint location fast and accurately, for the repairing of transmission line of electricity provides the sufficient time to ensure.
Description of drawings
Fig. 1 is process flow diagram of the present invention.
Embodiment
As shown in Figure 1, a kind of lightning fault broken string localization method based on information interaction of the present invention, it is realized by following steps:
1) gather the voltage data of each block switch, carry out break point by following judgment basis and judge:
If 1a) comparison result of the voltage data of any one block switch collection is: (| U Abt|>U Zd) ﹠amp; (| U Bct|<U Zd), think that then A phase lightning-caused breaking fault occurs in this block switch front side,
If 1b) comparison result of the voltage data of any one block switch collection is:
| U Abt|>U ZdAnd | U Bct|>U Zd, think that then B phase lightning-caused breaking fault occurs in this block switch front side,
If 1c) comparison result of the voltage data of any one block switch collection is:
(| U Abt|<U Zd) ﹠amp; (| U Bct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this block switch front side,
Wherein, U AbtAnd U BctBe respectively the Sudden Changing Rate of AB phase line voltage and BC phase line voltage, U ZdBe broken string voltage setting valve.
2) gather the voltage data of all demarcation switch, carry out break point by judgment basis and judge:
If 2a) comparison result of the voltage data of any one demarcation switch collection is: (| U Abt|>U Zd) ﹠amp; (| U Bct|<U Zd), think that then A phase lightning-caused breaking fault occurs in this block switch front side,
If 2b) comparison result of the voltage data of any one demarcation switch collection is: | U Abt|>U ZdAnd | U Bct|>U Zd, think that then B phase lightning-caused breaking fault occurs in this block switch front side,
If 2c) comparison result of the voltage data of any one demarcation switch collection is: (| U Abt|<U Zd) ﹠amp; (| U Bct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this block switch front side,
Wherein, U AbtAnd U BctBe respectively the Sudden Changing Rate of AB phase line voltage and BC phase line voltage, U ZdBe broken string voltage setting valve.
3) gather the voltage data of all intelligent electric meters, carry out break point by judgment basis and judge:
If 3a) comparison result of the voltage data of any one intelligent electric meter collection is:
(| U At|>U Zd) ﹠amp; (| U Bt|<U Zd) ﹠amp; (| U Ct|>U Zd), think that then A phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
3b) if the comparison result of the voltage data of any one intelligent electric meter collection is (| U At|>U Zd) ﹠amp; (| U Bt|>U Zd) ﹠amp; (| U Ct|<U Zd), think that then B phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
3c) if the comparison result of the voltage data of any one intelligent electric meter collection is (| U At|<U Zd) ﹠amp; (| U Bt|>U Zd) ﹠amp; (| U Ct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
Wherein, U At, U Bt, U CtBe respectively the Sudden Changing Rate of A phase, B phase, C phase voltage, U ZdBe broken string voltage setting valve.
4) with one or more result of determination data input generalized information systems in the above-mentioned steps, position the geographic position of lightning-caused breaking point in conjunction with the line facility topology information in the generalized information system.
The present invention is by the information of voltage of the integrated electrical power distribution automatization system of information interactive bus, electricity consumption acquisition system, in conjunction with the distribution network topological structure, by the topology location analysis of break point having been realized the location of lightning-caused breaking point on the GIS graphical interfaces, not only realize visualized management, and by quick break alarm location, the lightning-caused breaking potential safety hazard is eliminated in time repairing, reduces the occurrence probability of personal injury accident.

Claims (4)

1. based on the lightning fault broken string localization method of information interaction, it is characterized in that, may further comprise the steps:
1) gathers the voltage data of each block switch, carry out break point and judge;
2) gather the voltage data of all demarcation switch, carry out break point and judge;
3) gather the voltage data of all intelligent electric meters, carry out break point and judge;
4) with one or more result of determination data input generalized information systems in the above-mentioned steps, position the geographic position of lightning-caused breaking point in conjunction with the line facility topology information in the generalized information system.
2. the lightning fault broken string localization method based on information interaction according to claim 1 is characterized in that described voltage data by block switch carries out the break point judgment basis and comprises:
If 1a) comparison result of the voltage data of any one block switch collection is: (| U Abt|>U Zd) ﹠amp; (| U Bct|<U Zd), think that then A phase lightning-caused breaking fault occurs in this block switch front side,
If 1b) comparison result of the voltage data of any one block switch collection is:
| U Abt|>U ZdAnd | U Bct|>U Zd, think that then B phase lightning-caused breaking fault occurs in this block switch front side,
If 1c) comparison result of the voltage data of any one block switch collection is:
(| U Abt|<U Zd) ﹠amp; (| U Bct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this block switch front side,
Wherein, U AbtAnd U BctBe respectively the Sudden Changing Rate of AB phase line voltage and BC phase line voltage, U ZdBe broken string voltage setting valve.
3. the lightning fault broken string localization method based on information interaction according to claim 1 is characterized in that described voltage data by demarcation switch carries out the break point judgment basis and comprises:
If 2a) comparison result of the voltage data of any one demarcation switch collection is: (| U Abt|>U Zd) ﹠amp; (| U Bct|<U Zd), think that then A phase lightning-caused breaking fault occurs in this block switch front side,
If 2b) comparison result of the voltage data of any one demarcation switch collection is: | U Abt|>U ZdAnd | U Bct|>U Zd, think that then B phase lightning-caused breaking fault occurs in this block switch front side,
If 2c) comparison result of the voltage data of any one demarcation switch collection is: (| U Abt|<U Zd) ﹠amp; (| U Bct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this block switch front side,
Wherein, U AbtAnd U BctBe respectively the Sudden Changing Rate of AB phase line voltage and BC phase line voltage, U ZdBe broken string voltage setting valve.
4. the lightning fault broken string localization method based on information interaction according to claim 1 is characterized in that described voltage data by intelligent electric meter carries out the break point judgment basis and comprises:
If 3a) comparison result of the voltage data of any one intelligent electric meter collection is:
(| U At|>U Zd) ﹠amp; (| U Bt|<U Zd) ﹠amp; (| U Ct|>U Zd), think that then A phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
If 3b) comparison result of the voltage data of any one intelligent electric meter collection is
(| U At|>U Zd) ﹠amp; (| U Bt|>U Zd) ﹠amp; (| U Ct|<U Zd), think that then B phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
If 3c) comparison result of the voltage data of any one intelligent electric meter collection is
(| U At|<U Zd) ﹠amp; (| U Bt|>U Zd) ﹠amp; (| U Ct|>U Zd), think that then C phase lightning-caused breaking fault occurs in this intelligent electric meter front side,
Wherein, U At, U Bt, U CtBe respectively the Sudden Changing Rate of A phase, B phase, C phase voltage, U ZdBe broken string voltage setting valve.
CN201210453938XA 2012-11-13 2012-11-13 Lightning stroke failure disconnection positioning method based on information interaction Pending CN102937690A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278736A (en) * 2013-04-12 2013-09-04 南方电网科学研究院有限责任公司 Method for automatically inquiring and diagnosing and publishing diagnosis result of thunder and lightning of breaker coil
CN103424670A (en) * 2013-08-12 2013-12-04 国网电力科学研究院武汉南瑞有限责任公司 Lightning stroke automatic diagnosis system for trip accident of power transmission line
CN104698341A (en) * 2015-03-10 2015-06-10 广东电网有限责任公司佛山供电局 Method and system for positioning lightning strike fault point of distribution line
CN109507528A (en) * 2018-11-15 2019-03-22 国网山西省电力公司大同供电公司 A kind of 10kV overhead transmission line lightning-caused breaking warning device based on fault current detection

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CN102403798A (en) * 2011-10-31 2012-04-04 广东电网公司江门供电局 Intelligent automatic transformer district monitoring method and system based on GIS (geographical information system)
CN102707194A (en) * 2012-05-17 2012-10-03 中国电力科学研究院 Power distribution network broken line fault location method

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JP2004117223A (en) * 2002-09-27 2004-04-15 Techno Success Kk Transmission line monitoring system and abnormality detecting device used for the same
CN102403798A (en) * 2011-10-31 2012-04-04 广东电网公司江门供电局 Intelligent automatic transformer district monitoring method and system based on GIS (geographical information system)
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103278736A (en) * 2013-04-12 2013-09-04 南方电网科学研究院有限责任公司 Method for automatically inquiring and diagnosing and publishing diagnosis result of thunder and lightning of breaker coil
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CN103424670A (en) * 2013-08-12 2013-12-04 国网电力科学研究院武汉南瑞有限责任公司 Lightning stroke automatic diagnosis system for trip accident of power transmission line
CN103424670B (en) * 2013-08-12 2015-11-18 国网电力科学研究院武汉南瑞有限责任公司 A kind of thunderbolt auto-check system of transmission line of electricity trip accident
CN104698341A (en) * 2015-03-10 2015-06-10 广东电网有限责任公司佛山供电局 Method and system for positioning lightning strike fault point of distribution line
CN109507528A (en) * 2018-11-15 2019-03-22 国网山西省电力公司大同供电公司 A kind of 10kV overhead transmission line lightning-caused breaking warning device based on fault current detection
CN109507528B (en) * 2018-11-15 2020-11-06 国网山西省电力公司大同供电公司 10kV overhead line thunderbolt broken string alarm device based on fault current detection

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