复合绝缘子伞套老化状态模糊综合评估

针对硅橡胶复合绝缘子长期在户外运行时出现的老化问题，提出一种基于模糊综合评价的绝缘子状态评估方法。从硅橡胶复合绝缘子伞套材料角度出发，建立机械性能指标、憎水性指标、电气性能指标等4个一级指标，以及所属的12个二级指标。通过构建评价指标的隶属度函数来获得各指标的隶属度，结合改进层次分析法和熵权法的组合赋权法，对各指标进行赋权，最后根据线性加权法求取复合绝缘子的等级状态。实例证明该模型能准确高效地判断出复合绝缘子的状态，为复合绝缘子的状态检修提供依据。

Fuzzy Comprehensive Evaluation of Aging State of Silicone Rubber Sheds of Composite Insulators

Aiming at the aging problem of silicone rubber composite insulators with long-term outdoor operation, a composite insulator condition assessment method is proposed based on fuzzy comprehensive evaluation. From the perspective of silicone rubber shed materials of composite insulators, four first-level indicators, including mechanical performance index, hydrophobic index and electrical performance index, as well as 12 second-level indexes are established. The membership of each index is obtained by constructing the membership function of the evaluation indexes, and the weight of each index is given with the combined weight method of improved analytic hierarchy process (AHP) and entropy weight method. At last, the linear weighting methods is used to calculate the grade status of composite insulators. Case study shows that the proposed model can accurately and efficiently discriminate the state of composite insulators, which can provide a basis for the condition maintenance of composite insulators.