Method and device for detecting abnormal heating in switch cabinet based on SVR model

A technology of abnormal heat generation and detection method, which is applied in the directions of measuring devices, thermometer parts, measuring heat, etc., can solve the problem of low accuracy of contact temperature rise, and achieve the effect of perfect condition monitoring and fault diagnosis.

Pending Publication Date: 2021-04-16
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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Problems solved by technology

[0005] The purpose of the present invention is to provide a method and device for detecting abnormal heating inside the switchgear based on the SVR model, which can solve the problem in the prior art that the temperature rise of the contacts is initially calculated from the temperature rise of some single points of the housing. And the problem of large sample data required in the training and learning process of neural network

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  • Method and device for detecting abnormal heating in switch cabinet based on SVR model
  • Method and device for detecting abnormal heating in switch cabinet based on SVR model
  • Method and device for detecting abnormal heating in switch cabinet based on SVR model

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[0031] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0032] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...

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Abstract

The invention provides a method and device for detecting abnormal heating in a switch cabinet based on an SVR model, and a storage medium. The method comprises the steps of obtaining switch cabinet isolation switch temperature rise test data; selecting a temperature value of a monitoring point of a switch cabinet shell and an environment temperature value as independent variables, and selecting a temperature value of an isolating switch contact as a dependent variable; performing parameter optimization on the penalty parameter C and the kernel function parameter g by using a genetic algorithm to obtain a trained SVR model; using the SVR model to carry out isolating switch contact temperature regression monitoring; comparing regression monitoring results under different kernel functions, determining an optimal scheme, and establishing an isolating switch contact temperature regression monitoring model; and testing the temperature of the switch contact by using the isolating switch contact temperature regression monitoring model. The method can calculate the temperature rise of the isolation switch of the switch cabinet under different contact resistances and different load currents, and lays an experimental foundation for perfecting the state monitoring and fault diagnosis of the switch cabinet.

Description

technical field [0001] The invention relates to the technical field of temperature detection of switchgear equipment, in particular to a method and device for detecting abnormal heating inside a switchgear based on an SVR model. Background technique [0002] Gas Insulated Switchgear (Gas Insulated Switchgear, switchgear) has been widely used due to its excellent performance. Although the manufacturing quality and operation reliability of the switchgear are high, when it fails, it will cause a large-scale power outage, which will have a great impact on the normal operation of the power grid. The switchgear equipment is a closed composite structure, and its repair and maintenance not only consumes a lot of manpower and material resources, but also takes a long time. Since the switchgear equipment has been put into operation for a relatively short time, the operating staff may not know much about its internal structure, and the experience in actual operation on site is still s...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/00G01K1/14G06F17/15
Inventor 饶夏锦麻守孝黎大健朱立平夏小飞苏毅芦宇峰彭博雅孙大伟梁曲栩
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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