Risk quantification evaluation method for switch and knife switch operation processes

A technology of knife switch operation and risk, applied in the field of electric power engineering

Inactive Publication Date: 2017-11-03
GUANGXI POWER GRID CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual switch and knife switch operation process, uncertain factors such as weather factors and equipment use status have caused a non-neg

Method used

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  • Risk quantification evaluation method for switch and knife switch operation processes
  • Risk quantification evaluation method for switch and knife switch operation processes
  • Risk quantification evaluation method for switch and knife switch operation processes

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Embodiment Construction

[0054] The technical solution of the present invention will be described in further non-limiting detail below in conjunction with the embodiments and accompanying drawings.

[0055] The switch and knife switch operation risk quantitative assessment discussed in the present invention is in essence the possible success state C in the switch and knife switch operation process 1 , accident state C 2 and defect state C 3 The risk probability and risk impact value of the three states are analyzed and calculated. The operation form of the switch mainly includes opening and closing (power outage, power transmission and ring unclosing operation, etc.), and the operation form of the knife switch mainly includes opening and closing (reversing the mother, PT outage, etc.). The operating states of switches and knife switches are different, and the corresponding possible system risk consequences are also different.

[0056] The successful state C 1 : Refers to the system state after the...

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Abstract

The invention discloses a risk quantification evaluation method for switch and knife switch operation processes. The method comprises following steps of (1), dividing operation states of a switch and a knife switch into three kinds of risk scenes of a successful state C1, an accident state C2 and a defect state C3, and calculating risk influence values of the switch and the knife switch in the successful state C1, the accident state C2 and the defect state C3; (2), calculating probabilities of the switch and the knife switch in the successful state C1, the accident state C2 and the defect state C3; and (3), carrying out risk quantification evaluation according to a risk theory. According to the invention, the actual switch and knife switch operation can be guided; and the method is very important in avoiding risks in the switch and knife switch operation, reducing risk coefficients of the switch and knife switch operation and maintaining safe, reliable and economical operation of an electric power system.

Description

technical field [0001] The invention belongs to the technical field of electric power engineering, and in particular relates to a risk quantification evaluation method for the operation process of switches and knife switches. Background technique [0002] With the development of the power system, the scale of the power grid is getting bigger and bigger, and the structure is getting more and more complex. Due to various factors such as environmental constraints and large-scale interconnection of the power grid, the operating conditions of the power system are getting closer and closer to the limit of safety and stability. Under such system operating conditions, the destruction of stability will lead to abnormal power supply, and even bring serious threats to the entire power system. [0003] Switching and knife operation are an important part of the daily operation of power systems. Accidents caused by improper operation of switches and switches are often serious. In order ...

Claims

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Application Information

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IPC IPC(8): G06Q10/06G06Q50/06
CPCG06Q10/0635G06Q50/06
Inventor 刘裕昆邹清林唐健何井龙张元胜陈新凌张旻钰宋吉峰阳晟沈梓正
Owner GUANGXI POWER GRID CORP
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