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Health status diagnosis method of secondary equipment in intelligent substation

A technology of intelligent substation and intelligent substation, which is applied in the direction of measuring electricity, measuring electrical variables, instruments, etc., can solve the problems of affecting the normal operation of equipment, wasting manpower and material resources, and over-detection, so as to improve the operation performance of equipment, prolong the service life, The effect of reducing downtime

Active Publication Date: 2015-10-28
STATE GRID CORP OF CHINA +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a method for diagnosing the health status of secondary equipment in intelligent substations, which solves the problems of excessive and incomplete detection, affecting the normal operation of equipment and wasting manpower and material resources in existing diagnostic methods

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  • Health status diagnosis method of secondary equipment in intelligent substation
  • Health status diagnosis method of secondary equipment in intelligent substation
  • Health status diagnosis method of secondary equipment in intelligent substation

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, 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, not to limit the present invention.

[0032] figure 1 An embodiment of the method for diagnosing the health status of secondary equipment in intelligent substations of the present invention is shown: a method for diagnosing the health status of secondary equipment in intelligent substations, including the following steps:

[0033] Clarify the status type of the secondary equipment in the smart substation, and determine the status type information of the secondary equipment according to the typical abnormalities and fault types that occur during the operation of the secondary equipment in the smart substation;

[0034] According to the...

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Abstract

The invention relates to the field of power system equipment monitoring, in particular to an intelligent transformer substation secondary equipment health state diagnosis method. The method includes the steps of defining the state type of intelligent transformer substation secondary equipment, determining a state attribute information variable of the secondary equipment, establishing a sample database of the transformer substation secondary equipment, obtaining state self-inspection information of the secondary equipment, performing discretization to obtain a state attribute value, establishing a Bayesian network classification model, and selecting the fault type with maximum probability as the health state diagnosis result of the secondary equipment. According to the method, the equipment state can be mastered accurately, the outage time is shortened, the safe reliability and the utilization rate of the equipment are improved, and the service life of the equipment is prolonged; a maintenance requirement decision is made scientifically, maintenance projects, maintenance intervals and maintenance period are arranged reasonably, equipment operation maintenance cost is reduced effectively, equipment operation performance is improved, and economic benefits are improved; a management system meeting state maintenance requirements is formed, and the basic management level of maintenance and operation is improved.

Description

technical field [0001] The invention relates to the field of power system equipment monitoring, in particular to a method for diagnosing the health state of secondary equipment in an intelligent substation. Background technique [0002] The secondary equipment of intelligent substation is an important component of power system measurement, protection and monitoring. Well-running secondary equipment is very important to the entire power grid. The reliability requirements of secondary equipment in the power system are not only reflected in ensuring the normal power consumption of users and prolonging the service life of equipment, but also ensuring the safe and effective economic operation of the power grid and improving work efficiency. A reasonable maintenance strategy can effectively avoid large-scale power grid accidents caused by protection devices. [0003] At present, the maintenance method of electrical secondary equipment in substations in my country is mainly regula...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
Inventor 常政威方玉彭灿赵峰谢晓娜
Owner STATE GRID CORP OF CHINA
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