中国电力 ›› 2021, Vol. 54 ›› Issue (5): 156-165.DOI: 10.11930/j.issn.1004-9649.202010080

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复合绝缘子伞套老化状态模糊综合评估

王思华1,2, 陈龙1, 王军军1, 赵磊1   

  1. 1. 兰州交通大学 自动化与电气工程学院,甘肃 兰州 730070;
    2. 甘肃省轨道交通电气自动化工程实验室(兰州交通大学),甘肃 兰州 730070
  • 收稿日期:2020-10-26 修回日期:2020-11-19 发布日期:2021-05-05
  • 作者简介:王思华(1968-),男,教授,从事高电压与绝缘技术研究,E-mail:ws-h@163.com;陈龙(1996-),男,通信作者,硕士研究生,从事高电压与绝缘技术相关研究,E-mail:1726798752@qq.com
  • 基金资助:
    国家自然科学基金资助项目(盐碱沙尘地区接触网绝缘子动态积污规律和污闪预测方法的研究,51767014;风沙环境下兰新高铁接触网附加导线舞动放电特性及防治技术研究,51867013);中国铁路总公司科技研究开发计划资助项目(盐碱区域绝缘子动态积污分析及防治技术研究,2017010-C)

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

WANG Sihua1,2, CHEN Long1, WANG Junjun1, ZHAO Lei1   

  1. 1. College of Automation & Electrical Engineering, Lanzhou Jiaotong University, Lanzhou 730070, China;
    2. Rail Transit Electrical Automation Engineering Laboratory of Gansu Province, Lanzhou Jiaotong University, Lanzhou 730070, China
  • Received:2020-10-26 Revised:2020-11-19 Published:2021-05-05
  • Supported by:
    This work is supported by National Natural Science Foundation of China (Research on Dynamic Pollution Accumulator Law and Pollution Flashover Prediction Method of OCS Insulators in Saline Dust Area, No.51767014; Research on Dancing Discharge Characteristics and Prevention Technology of Additional Wire of OCS of Lanzhou-Xinjiang High-speed Railway under Wind and Sand Environment, No.51867013) and the Science and Technology Research and Development Program of China Railway Corporation (Study on Dynamic Contamimation of Insulator in Saline Dust Area and Its Prevention and Control Technology, No.2017010-C)

摘要: 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。

关键词: 复合绝缘子, 模糊综合评价, 隶属度函数, 改进层次分析法, 熵权法

Abstract: 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.

Key words: silicone rubber composite insulator, fuzzy comprehensive evaluation, membership function, improved AHP, entropy weight method