Hidden fault early warning method and device based on protection starting and associated wave recording analysis

A technology of hidden faults and protection startup, applied in the electric power field, can solve the problems of hidden faults of protection devices that are difficult to detect in advance, and achieve the effect of expanding the application range and depth of application

Pending Publication Date: 2020-04-03
CHINA SOUTHERN POWER GRID COMPANY +2
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  • Claims
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Problems solved by technology

[0003] In view of this, this disclosure proposes a hidden fault early warning method and device based on protection start-up and associated wave recording analysis, which solves the problem that hidden faults of protection devices are not easy to be discovered in advance

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  • Hidden fault early warning method and device based on protection starting and associated wave recording analysis
  • Hidden fault early warning method and device based on protection starting and associated wave recording analysis
  • Hidden fault early warning method and device based on protection starting and associated wave recording analysis

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Embodiment Construction

[0047] Various exemplary embodiments, features, and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

[0048] The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

[0049] In addition, in order to better illustrate the present disclosure, numerous specific details are given in the following specific implementation manners. It will be understood by those skilled in the art that the present disclosure may be practiced without some of the specific details. In some instances, methods, means, componen...

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Abstract

The invention relates to a hidden fault early warning method and device based on protection starting and associated recording analysis, and the method comprises the steps: obtaining fault recording data; extracting characteristic parameters representing the state of a fault point from the fault recording data; and obtaining a hidden fault early warning result according to the characteristic parameters. According to the embodiment of the invention, early warning results such as near fault point protection starting early warning, sampling abnormity early warning and main transformer near area fault early warning are obtained through fault recording data; and moreover, the application range and the application depth of the fault recording data are expanded, and hidden faults of the protectiondevice can be found in advance, thereby meeting the operation requirements of the intelligent power grid.

Description

technical field [0001] The present disclosure relates to the field of electric power technology, in particular to a hidden fault early warning method and device based on protection start-up and associated wave recording analysis. Background technique [0002] In recent years, the large-scale interconnection of power grids has become a trend in the development of global power grids, which increases the scale of modern power grids and improves economic efficiency. At the same time, the requirements for the safe and stable operation of power systems are also getting higher and higher. However, because the hidden faults of protection devices are not easy to be found in advance, the hidden faults of relay protection have become a catastrophic mechanism in power systems. Contents of the invention [0003] In view of this, the present disclosure proposes a hidden fault early warning method and device based on protection start-up and associated wave recording analysis to solve the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00H02H1/00
CPCH02H1/00G06F2218/08
Inventor 丁晓兵詹庆才余江杨常府高宏慧王立鼎史泽兵蒋纬纬李正红郑茂然赵纪元黄佳胤王丽伟代芳琳
Owner CHINA SOUTHERN POWER GRID COMPANY
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