基于灰色关联分析的定向权重式架空输电线路状态模糊评价方法
Fuzzy evaluation method of directional weight overhead transmission lines based on grey correlation analysis
沙池橙 1林祖荣 2钱振东 1沈祥 2刘亚多 3苏志钢3
作者信息
- 1. 东南大学智能交通运输系统研究中心,江苏南京 211189
- 2. 国网浙江省电力有限公司绍兴供电公司,浙江绍兴 312000
- 3. 中国电力科学研究院,北京 100192
- 折叠
摘要
为了准确把握输电线路结构健康状态,提出了基于灰色关联分析的定向权重式架空输电线路状态模糊评价方法.该方法通过关键劣化因素搭建模糊评价体系,并基于待评地区历史数据,通过灰色关联分析法构建对于该地区的定向权重集,同时通过改进的三角梯形隶属度函数表征状态分布,可以得到直观性工程赋值结果.实例分析表明,该评价方法有利于准确评判输电线路的实际运营状态,并可指导状态检修.
Abstract
In order to accurately grasp the structural health state of transmission lines,a fuzzy evaluation method of directional weight overhead transmission lines based on grey correlation analysis is proposed.In this method,a fuzzy evaluation system is established through the key deterioration factors,and based on the historical data of the region to be evaluated,the directional weight set for the region is constructed by the grey correlation analysis method.Meanwhile,the state distribution is characterized by the improved triangular trapezoidal membership function,and the intuitive engineering assignment results can be obtained.The case analysis shows that the evaluation method is conducive to accurately evaluate the actual operation state of transmission lines,and can guide the condition based maintenance.
关键词
架空输电线路/状态评价/灰色关联分析/模糊综合评价/定向权重Key words
overhead transmission line/state evaluation/grey correlation analysis/fuzzy comprehensive evaluation/directional weight引用本文复制引用
基金项目
国家电网科技项目(SGTYHT/19-JF-215)
出版年
2024
NETL
NSTL
万方数据