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Power distribution network fault analyzing system and method

A technology for power grid faults and distribution, which is applied to fault locations and fault detection according to conductor types. It can solve problems such as power system fault analysis and difficult old-fashioned residential areas, and achieve the effect of facilitating fault analysis, realizing prevention and accumulating experience of faults.

Pending Publication Date: 2017-03-22
YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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Problems solved by technology

[0005] The purpose of the present invention is to provide a distribution network fault analysis system and method to solve the problem that the existing technology is difficult to carry out fault analysis on the power system of the old residential area

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Embodiment Construction

[0053] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0054] The first aspect of the present invention shows a distribution network fault analysis system, such as figure 1As shown, the system includes an electrical parameter acquisition device 201 and a data analysis and processing device 202; the electrical parameter acquisition device 201 acquires the current value of the power supply line 105 of the distribution grid in real time; the data analysis and processing device 202 receives the power supply The current ...

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Abstract

The embodiment of the invention provides a power distribution network fault analyzing system and method. The system comprises an electrical parameter acquisition apparatus and a data analyzing and processing apparatus, wherein the electrical parameter acquisition apparatus obtains current values of power lines of a power distribution network, and the data analyzing and processing apparatus receives the current values of the power lines, draws current waves of the power lines according to the current values of the power lines and the power frequency corresponding to the current values of the power lines, and determines the fault type of the power distribution network according to the current waves. The system records and reproduces the current waves at the moment when power consumption fault occurs on the power distribution network, reproduces the fault occurring process for maintenance workers and turns randomly occurred fault into manually reproduced fault, thereby realizing fault prevention and fault experience accumulation. The system facilitates fault analysis for power systems in old residential communities.

Description

technical field [0001] The invention relates to the technical field of electric power fault analysis, in particular to a system and method for fault analysis of a distribution network. Background technique [0002] The electrical appliances on the distribution network are very complicated: the opening of high-power electrical appliances will lead to overloading of the line; The safety and stability of the power grid, etc.; the intermittent operation of electrical appliances such as refrigerators will also cause regular impacts and even resonance on the distribution network. On the one hand, due to the influence of human activities, the distribution network will also become regular. For example, in winter, the load will be increased due to the influence of heaters; the load will increase during meal times; the load will be lower at night, etc. On the other hand, there are too many users on the distribution network side, and common faults such as short circuit and leakage oft...

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Application Information

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IPC IPC(8): G01R31/08
CPCG01R31/086
Inventor 杨明李翔刘清蝉张建伟赵永辉杨昊
Owner YUNNAN POWER GRID CO LTD ELECTRIC POWER RES INST
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