CN102937690A - Lightning stroke failure disconnection positioning method based on information interaction - Google Patents
Lightning stroke failure disconnection positioning method based on information interaction Download PDFInfo
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Classifications
-
- Y—GENERAL 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
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS 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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage 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
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.
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| CN201210453938XA CN102937690A (en) | 2012-11-13 | 2012-11-13 | Lightning stroke failure disconnection positioning method based on information interaction |
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| CN201210453938XA CN102937690A (en) | 2012-11-13 | 2012-11-13 | Lightning stroke failure disconnection positioning method based on information interaction |
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| 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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| 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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Free format text: CORRECT: INVENTOR; FROM: FANG MU XU MING WANG SU XIE RONGKUN LIU SHUZHONG DU YAN WANG HUI WANG XIAOYAN TO: FANG MU XU MING WANG SU XIE RONGKUN WANG SIYUAN LIU SHUZHONG DU YAN WANG HUI WANG XIAOYAN |
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Address after: 100031 Xicheng District, Chang'an Avenue, No. 86, Applicant after: State Grid Corporation of China Applicant after: Jinan Power Supply Company, State Grid Shandong Electric Power Company Address before: 100031 Xicheng District, Chang'an Avenue, No. 86, Applicant before: State Grid Corporation of China Applicant before: Jinan Power Supply Co., Ltd. of Shandong Electric Power Corporation |
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Inventor after: Fang Mu Inventor after: Xu Ming Inventor after: Wang Su Inventor after: Xie Rongkun Inventor after: Wang Siyuan Inventor after: Liu Shuzhong Inventor after: Du Yan Inventor after: Wang Hui Inventor after: Wang Xiaoyan Inventor before: Fang Mu Inventor before: Xu Ming Inventor before: Wang Su Inventor before: Xie Rongkun Inventor before: Liu Shuzhong Inventor before: Du Yan Inventor before: Wang Hui Inventor before: Wang Xiaoyan |
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