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Method and system for detecting operating states of substation equipment

A technology for equipment operation and operation status, applied in the field of power system, can solve problems such as the inability to quantitatively assess the safety status of substation equipment and the inability to provide early warning information.

Inactive Publication Date: 2014-07-02
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1
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Problems solved by technology

At the same time, these research results cannot quantitatively evaluate the safety status of substation equipment from an overall perspective, nor can they provide early warning information in the early stage of potential failure of electrical equipment.

Method used

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  • Method and system for detecting operating states of substation equipment
  • Method and system for detecting operating states of substation equipment

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Embodiment Construction

[0018] In order to make the purpose, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and do not limit the protection scope of the present invention.

[0019] The detection method of the substation equipment running state of the present invention, such as figure 1 shown, including the following steps:

[0020] Step s101 , acquiring historical operating data of substation equipment, and establishing historical data models under various operating states for each type of substation equipment. Each type of equipment in the substation has a record of operation data, and the operation state corresponding to each group of operation data is also known. This method uses the recorded historical operation data as empirical da...

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Abstract

The invention discloses a method and system for detecting operating states of substation equipment. Different from a diagnostic method purely based on a failure mechanism, the method is characterized in that real-time historical data of the substation equipment are utilized; historical data models under the various operating states are set as reference; compared with models set according to current state data, the historical data models can obtain the relevancy degree representing the level of similarity; the current corresponding operating state of the substation equipment is judged according to the relevancy degree. Thus, once the level of similarity of the current state data of the equipment and the historical failure state data exceeds a threshold value, an early warning message can be sent out, and accordingly early signs of potential faults of the substation equipment are early warned, and relevancy of fault types is analyzed.

Description

technical field [0001] The invention relates to the technical field of power systems, in particular to a method and system for detecting the running state of substation equipment. Background technique [0002] The status of substation equipment is related to the normal and stable operation of the power grid. When the substation equipment is in the latent fault state, it often does not have a major impact on the normal operation of the power grid, nor does it show obvious fault characteristics, so it is easy to be ignored by the operation and maintenance personnel; when the equipment fault symptoms are obvious, the equipment itself may stop working at any time Thereby seriously affecting the stable operation of the power grid. [0003] At present, domestic research on fault diagnosis of substation equipment is still mainly based on the analysis of the mechanism of equipment fault itself, most of which belong to post-event analysis. At the same time, these research results c...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
Inventor 张浒王红斌范颖高雅陈浩朱文俊江涛冯坤
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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