Breakdown intelligent classification and positioning method of electric transmission line

A locating method and transmission line technology, applied in the field of power transmission, can solve the problems of the fault locating method, such as path impedance, line load and power supply parameters having a large influence, etc.

Inactive Publication Date: 2013-05-08
NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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Problems solved by technology

[0005] Aiming at the problem that the fault location method mentioned in the background technology is greatly affected by path impedance, line load and power supply parameters, the present invention proposes an intelligent classification and location method for transmission line faults

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  • Breakdown intelligent classification and positioning method of electric transmission line
  • Breakdown intelligent classification and positioning method of electric transmission line
  • Breakdown intelligent classification and positioning method of electric transmission line

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Embodiment Construction

[0086] The preferred embodiments will be described in detail below in conjunction with the accompanying drawings. It should be emphasized that the following description is only exemplary and not intended to limit the scope of the invention and its application.

[0087] The main idea of ​​the technical solution of the present invention is to concentrate the advantages of the three intelligent technologies of SVM, ANFIS and RBF neural network, to establish different fault classifiers and locators through the training of samples, and to design an automatic model selection algorithm to realize the The optimal fault classification and scheme selection under different fault conditions can be applied to 500kV and 750kV single- and double-ended transmission systems. After a fault occurs, the three-phase fault current and voltage signals obtained by the wave recorder are used as the input of the model, and the fault type, location, severity and repair difficulty are obtained through th...

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Abstract

The invention discloses a breakdown intelligent classification and positioning method of an electric transmission line. The technical scheme of the breakdown intelligent classification and positioning method of the electric transmission line breakdown is that the advantages of three kinds of technologies of a support vector machine (SVM), self-adaptation nerve fuzzy inferences (SVM) and radial based function (RBF) neural networks are concentrated. The breakdown classifiers and positioners of the SVM, the SVM and the RBF neural networks are designed. Positioning errors, classification accuracy and model operation time are used as evaluation indicators. According to the standard that accuracy is preferred and efficiency is taken into account, intelligent selection of an optimal classifier and an optimal positioner is achieved under different breakdown conditions, and optimal breakdown classification and positioning effect is achieved. Meanwhile breakdown serious extent and repair indicators are designed to evaluate breakdown injury extent and breakdown repair difficulty. The breakdown intelligent classification and positioning method of the electric transmission line effectively improves power supply reliability, reduces outage cost, and meanwhile greatly reduces workload of maintenance personnel and improves working efficiency.

Description

technical field [0001] The invention belongs to the technical field of power transmission, and in particular relates to a fault intelligent classification and location method of a power transmission line. Background technique [0002] The natural conditions such as geological conditions and meteorological conditions in the area where the transmission line crosses are complex and changeable, and there are many factors that may cause faults. Therefore, most faults in the power system occur on the transmission line. Before the emergence of fault location technology, the location of the fault point was often found by manual line inspection, and the time required was unacceptable for the power system. The fault location technology can quickly and accurately locate the fault point according to the characteristics of the line fault, restore the power supply in time, and reduce the huge loss caused by the power outage. Therefore, when a fault occurs on a transmission line, it is ur...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/08G06F17/30
CPCY02D10/00
Inventor 许刚马爽史巍王紫雷刘坤
Owner NORTH CHINA ELECTRIC POWER UNIV (BAODING)
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