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Power distribution network fault locating method and device

A distribution network fault and positioning method technology, applied in the direction of fault location, information technology support system, etc., can solve problems such as false alarms of fault signals, and achieve the effect of eliminating missing

Active Publication Date: 2015-08-19
HEBI POWER SUPPLY OF HENAN ELECTRIC POWERCORP +1
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  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a distribution network fault location method and device to solve the problem of distribution automation when the fault signal sent by the distribution network fault detection device is delayed, missing, missed or misreported. The master station system can correctly judge whether an accident has occurred and perform fault location

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  • Power distribution network fault locating method and device

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Embodiment Construction

[0036] The present invention will be described in further detail below through specific implementation examples in conjunction with the accompanying drawings.

[0037] Considering the problems of the distribution network fault detection device itself or the problems of communication transmission, when a fault occurs, the fault information received by the master station system may have various abnormal situations such as delay, missing, missed report, and false report. At present, the traditional distribution line fault processing algorithm is usually used. This algorithm is only applicable to the situation that the fault information is correct and complete. .

[0038] Distribution network fault location method, including:

[0039] Step S1, judging whether the first reported fault information is complete, if not complete, execute step S2;

[0040] Step S2, performing a mandatory data call and delayed waiting for the relevant equipment, if a signal feedback is received during ...

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Abstract

The invention relates to the power grid fault locating field, and specifically refers to a power distribution network fault locating method and device; the method comprises the following steps: S1, determining whether first report fault information is complete or not, is not, executing S2; S2, carrying out forced data call and time-delay wait for related device, if a signal feedback is returned in a time-delay wait process, determining the signal feedback as second report fault information; S3, drawing determination information from the second report fault information, confirming the fault according to the determination information, is yes, executing S4; S4, determining the device, most close to a load side, with the fault signal as a fault border device, using a topology relation to carry out rough set fault location algorithm for devices in front of and behind the fault border device, and carrying out fault determination. The fault locating device executes the said fault locating method; when fault-signal delay, deletion and miss report fault conditions happen to a power distribution network fault detection device, the power distribution network fault locating method and device can rightly determine whether accident happened or not, and realize fault locating.

Description

technical field [0001] The field of power grid fault location of the present invention, in particular, relates to a distribution network fault location method and device. Background technique [0002] Due to the problems of the distribution network fault detection device itself or the problems of communication transmission, when a fault occurs, the fault information received by the master station system may have delays, absences, missed reports, and false reports. The traditional distribution line fault processing algorithm is only suitable for the situation that the fault information is correct and complete. Contents of the invention [0003] The purpose of the present invention is to provide a distribution network fault location method and device to solve the problem of distribution automation when the fault signal sent by the distribution network fault detection device is delayed, missing, missed or misreported. The master station system can correctly judge whether an ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08
CPCY04S10/52
Inventor 潘龙辛忠良秦卫东邵利坤李晓燕刘风昌张广福陈强杨鹏飞夏传鲲王东王兴念
Owner HEBI POWER SUPPLY OF HENAN ELECTRIC POWERCORP
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