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Reliability-based maintenance decision method for switch equipment

A technology for switchgear and decision-making method, applied in switchgear, climate change adaptation, electrical components, etc., and can solve problems such as increased system operation risk

Active Publication Date: 2012-08-01
CHONGQING UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

An important factor that is more or less ignored in traditional equipment maintenance is that the period of maintenance outage is always accompanied by a potential increase in the operation risk of the entire system

Method used

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  • Reliability-based maintenance decision method for switch equipment
  • Reliability-based maintenance decision method for switch equipment
  • Reliability-based maintenance decision method for switch equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0073] 1. Complete and sort the set of equipment to be repaired:

[0074] as attached figure 1 As shown, by combining the equipment aging analysis module in the software platform to improve the set of equipment to be repaired, and using the equipment failure rate statistics module and the importance analysis module of equipment components, the maintenance importance of I equipment to be repaired is sorted according to the equipment failure rate , voltage level and importance of equipment components are sorted and adjusted in sequence, and finally the associated switches are searched, so that the switchgear affecting the same load point can be repaired at the same time. The specific steps are as follows:

[0075] (1) Select the pre-maintenance time period, according to the pre-selected maintenance time period, extract the switchgear in the same maintenance time period for maintenance planning, and improve the set of equipment to be repaired through equipment aging analysis. ...

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Abstract

The invention provides a reliability-based maintenance decision method for switch equipment. According to the invention, a reliability-based maintenance decision method for switch equipment of an electric system is developed aiming at the defects of the traditional maintenance decision method for the switch equipment. The reliability-based maintenance decision method comprises the following steps of: analyzing the aging condition of the switch equipment and sending a maintenance prewarning by applying a reliability maintenance theory; analyzing the failure consequence seriousness level of the switch equipment, carrying out importance quantitative evaluation on switch equipment components to be maintenance by combining historic operation statistical data of the switch equipment and sequencing an equipment set to be maintained by utilizing the historic statistical fault rate, the voltage level and the importance weight value of the equipment; and adjusting the maintenance decision sequence of the equipment set to be maintained by an associated switch search method, and establishing a maintenance capability restriction and weather restriction-considered maintenance schedule decision method for the switch equipment according to the maintenance decision sequence and by taking deficient power supply volume as an optimization goal.

Description

technical field [0001] The invention relates to a decision-making method for reliability maintenance of electric switchgear, and belongs to the technical field of electric primary equipment maintenance. [0002] technical background [0003] With the development of grid integration, large power grids have become more and more complex, and the number of equipment in the grid has also increased sharply. Inevitably, the number of switchgears has also increased dramatically. The switchgear undertakes the three tasks of normal operation of the power grid, automatic cut-off of the circuit in the event of an accident, and isolation of the power supply during the maintenance of electrical equipment. Its investment accounts for more than half of the total investment in power equipment, so it occupies an extremely important position in the power grid. The reliable operation of the system is very important. Once there is a malfunction or refusal to operate, it will threaten the safe a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02B3/00
CPCY02A30/14
Inventor 熊小伏王燕祥吴娟侯艾君陈永琴刘宗兵胡睿瑾
Owner CHONGQING UNIV
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