高压电器2017，Vol.53Issue(9)：107-113,7.DOI:10.13296/j.1001-1609.hva.2017.09.018
基于物元可拓理论的高压断路器状态评估方法
Condition Assessment of High Voltage Circuit Breaker Based on Matter-element Extension Theory
摘要
Abstract
Condition assessment of high voltage circuit breaker is an important approach to providing decision-making for condition maintenance and improving operation reliability of power systems.In this paper,an integrated condition assessment model of high voltage circuit breaker is established based on the matter-element extension and evidence theories.The matter-element analysis is performed for the condition assessment,then the correlation functions of the assessment indicators are constructed,and the values of the correlation functions are calculated.When the indicators are in normal state,the correlation function values are positive,while when the indicators are in abnormal state,the correlation function values are negative.The degree dependency of the assessment indicators is obtained by applying set-pair analysis to deal with the initial uncertainty state of the assessment indicators,and it is amended as basic probability assignnent function.The ultimate assessment results are obtained by merging the basic probability assignments based on modified evidence theory.Test data verify that the proposed model is feasible,and the degradation degree of each assessment indicator can be determined.This study may provide a new line of thought for condition assessment of high voltage circuit breakers.关键词
高压断路器/状态评估/物元可拓/证据融合Key words
high voltage circuit breaker/condition assessment/matter-element extension/evidence fusion引用本文复制引用
常怡东,张开轩,金潇..基于物元可拓理论的高压断路器状态评估方法[J].高压电器,2017,53(9):107-113,7.
