LOW VOLTAGE APPARATUS ›› 2021, Vol. 0 ›› Issue (6): 23-29.doi: 10.16628/j.cnki.2095-8188.2021.06.004

• Research & Analysis • Previous Articles     Next Articles

Evaluation Method for Composite Insulators Aging State Based on Fuzzy Synthetic Evaluation

CAO Bin1, RAO Chengcheng2, DAI Wenliang1, LIU Kun1   

  1. 1. State Grid Hunan Electric Power Maintenance Company,Changsha 410000,China
    2. State Grid Hunan Electric Power Co.,Ltd.,Changsha 410000,China
  • Received:2021-01-24 Online:2021-06-30 Published:2021-10-13

Abstract:

The aging indexes of composite insulators are sorted out,and two layers of evaluation index system are constructed,with 14 evaluation indexes selected.Through the normalization of evaluation indexes and the selection of membership functions,on the basis of the constant weight determined by the improved analytic hierarchy process,the variable weight mode based on the equilibrium function is introduced,and the constant weight is modified to obtain the variable weight,so as to establish the fuzzy synthetic evaluation method for aging state of composite insulators.Finally,the aging model is verified by the experimental data of composite insulators.The results show that the fuzzy synthetic evaluation model based on the variable weight theory can reflect the aging state of insulators objectively.The method has a reference for the maintenance and replacement of composite insulators.

Key words: composite insulators, aging state, improved analytic hierarchy process(IAHP), fuzzy synthetic evaluation, experimental data

CLC Number: