基于改进模糊层次分析法的 SF6断路器状态评估

摘要

准确了解和评估高压断路器运行状态，对节约检修成本和提高系统运行的经济效益，都具有重要意义。针对以往评估方法中评估参数只局限于某一种特性，缺乏系统性和综合性，确定指标权重主观臆断，缺乏科学准确性，提出了基于模糊层次分析法确定参数权重的综合状态评估的方法，从电气、机械等方面综合建立状态评估体系，为改善人的判断模糊性，采用引进三角模糊数的改进模糊层次分析法确定评估指标权重，结合指标权重与评判矩阵进行模糊运算得到高压断路器的综合运行状态。并以SF6高压断路器为例验证了该方法的有效性。%　　It is a vital significance for saving inspection cost and improving economic benefits of system operation by accurately comprehending and evaluating the status of HV circuit breaker .Aiming at the former parameter evaluation methods which are confined only to a particular characteristic and lack of systematicness , comprehensiveness and scientific accuracy by subjec-tively assuming and determining the target weight , the integrated condition assessment method is proposed to determine the weight based on fuzzy analytic hierarchy process (FAHP), and the integrated condition assessment system is established elec-trically and mechanically.In order to improve the fuzzy judgment of human beings , the improved fuzzy analytic hierarchy process is adopted to determine and evaluate the target weight by importing the triangular fuzzy number , and the comprehensive operational condition of HV circuit breaker is obtained by fuzzy calculation combining with target weight and judgment matrix . Taking SF6 HV circuit breaker for example, the effectiveness of the proposed method is verified .