华南理工大学学报(自然科学版) ›› 2016, Vol. 44 ›› Issue (4): 71-76,100.doi: 10.3969/j.issn.1000-565X.2016.04.011

• 动力与电气工程 • 上一篇    下一篇

改进层次分析法在配网线路防雷评估中的应用

刘刚1 马浩禹1 张弦2   

  1. 1. 华南理工大学 电力学院,广东 广州 510640; 2. 国网湖南电力公司检修公司,湖南 长沙 410000
  • 收稿日期:2015-04-13 修回日期:2015-10-21 出版日期:2016-04-25 发布日期:2016-04-12
  • 通信作者: 刘刚(1969-) ,男,博士,副教授,主要从事智能高压电网、过电压及其防护、电力设备外绝缘研究. E-mail:liugang@scut.edu.cn
  • 作者简介:刘刚(1969-) ,男,博士,副教授,主要从事智能高压电网、过电压及其防护、电力设备外绝缘研究.
  • 基金资助:
    广东省科技计划项目( 2013B010405002)

Application of Improved Analytic Hierarchy Process on Evaluation of Lightning Protection in Distribution Networks

LIU Gang1 MA Hao-yu1 ZHANG Xian2   

  1. 1.School of Electric Power,South China University of Technology,Guangzhou 510640,Guangdong,China; 2.Maintenance Branch Company,State Grid Hunan Electric Power Company,Changsha 41000,Hunan,China
  • Received:2015-04-13 Revised:2015-10-21 Online:2016-04-25 Published:2016-04-12
  • Contact: 刘刚(1969-) ,男,博士,副教授,主要从事智能高压电网、过电压及其防护、电力设备外绝缘研究. E-mail:liugang@scut.edu.cn
  • About author:刘刚(1969-) ,男,博士,副教授,主要从事智能高压电网、过电压及其防护、电力设备外绝缘研究.
  • Supported by:
    Supported by Science and Technology Planning Project of Guangdong Province( 2013B010405002)

摘要: 为了有效减少输电线路雷击事故,确保电力系统的安全,电力运行部门必须采取一定的防雷措施来提高输电线路的耐雷水平. 文中基于采用新标度的层次分析法和模糊综合评价法,综合考虑降低跳闸率、工程费用、效果目标、维护难易度、运行寿命等因素的影响,构建了一个适用于配电网的防雷措施评估模型,并对实际线路防雷措施进行评估.根据层次分析法得到各防雷措施相对于目标层的权重值,然后采用模糊综合评价法得到各改造方案的隶属度,从而确定线路最优化的改造方案. 结果表明,该评估系统能够有效地对配电线路进行评估,确定配电线路最优防雷措施及线路改造方案.

关键词: 防雷, 改进层次分析法, 模糊综合评价, 新标度, 效果评估

Abstract: In order to effectivelyreduce thelightning incidents of power transmission lines and ensure the safety of power systems,some measures should be adopted to improve the lightning withstand level of transmission lines.In this paper,based on an improved analytic hierarchy process ( AHP) with new scale and the fuzzy comprehensive evaluation method ( FCEM) ,a model suitable for evaluating the lightning protection measures of actual lines in power distribution networks is proposed,which comprehensively considerssuch factors as the reduction of trip-out rate,the impact of engineering cost,the effect of the target,the ease of maintenance andthe service life.Then,in accordance with the AHP,all the evaluation weights of lightning protection measures relative to the destination level are obtained,the memberships of the measures are determined via the FECM,and the optimal rehabilitation scheme is thus presented.The results show that the proposed evaluation system helps to effectively assess the power distribution lines and determine the optimal lightning protection measures as well as line rehabilitation scheme.

Key words: lightning protection, improved analytic hierarchy process, fuzzy comprehensive evaluation, new scale, effect evaluation