摘要
构建了一种高压架空线路可靠性综合监测和管理系统的框架,介绍了线路故障主要影响因素识别的方法,提出了各主要影响因素的模糊分类判据,考虑了线路终端故障,最后建立了计及主要地理环境气象等7个主要影响因素的架空输电线路可靠性评估模型。算例结果表明,建立的模型能更加有效地预测不同输电线路的可靠性指标,为电网运行调度和设备维护部门评估电网安全指标、优化监测和检修计划提供了参考。
A frame of comprehensive monitoring and management system for reliability of high voltage overhead transmission lines is proposed, and a reliability evaluation model for overhead transmission lines, in which seven main impacting factors such as geographic environment, meteorology and so on are taken into account, is built. The method to recognize main impacting factors is based on the transmission line faults, and fuzzy classification criteria for various main impacting factors are given, than terminal faults and line faults are comprehensively considered to build a more complete fault probability evaluation model. Calculation results show that the guilt model can predict reliability index of different transmission lines more effectively. The proposed model could be used by power system dispatching departments and equipment maintenance departments for the evaluation of power network security index, the optimizing monitoring and improving maintenance schedules.
出处
《电网技术》
EI
CSCD
北大核心
2009年第20期158-163,共6页
Power System Technology
关键词
输电线路
可靠性模型
模糊处理
管理系统
transmission line
reliability model
fhzzyprocessing
management system
