基于电网生存性评价的关键线路识别方法-中国电机工程学报.PDF

第 31 卷 第 7 期 中 国 电 机 工 程 学 报 Vol.31 No.7 Mar.5, 2011 2011 年 3 月 5 日 Proceedings of the CSEE ©2011 Chin.Soc.for Elec.Eng. 29 文章编号：0258-8013 (2011) 07-0029-07 中图分类号：TM 71 文献标志码：A 学科分类号：470·40 基于电网生存性评估的关键线路识别方法 杨文辉，毕天姝，黄少锋，薛安成，杨奇逊 ( 电力系统保护与动态安全监控教育部重点实验室(华北电力大学) ，北京市 昌平区 102206) An Approach for Critical Lines Identification Based on the Survivability of Power Grid YANG Wenhui, BI Tianshu, HUANG Shaofeng, XUE Ancheng, YANG Qixun (Key Laboratory of Power System Protection and Dynamic Security Monitoring and Control (North China Electric Power University), Ministry of Education, Changping District, Beijing 102206, China) ABSTRACT: The identification of critical lines is of great 并具有很高的计算效率。 importance for strengthening the topology of critical lines, 关键词：电力系统；生存性；骨干网架；关键线路；连锁 adaptively adjusting the corresponding protection strategies 故障 and thus improving the reliability of power grids. Based on survivability assessment theory, a novel method is proposed to 0 引言 solve the problem of critical line identification. The concept of 近年来，电网连锁故障导致的大规模停电事故 backbone-grid is defined to describe the key components that 在世界范围内频繁发生，造成了巨大的经济损失和 are essential to the survival of system. The mathematical model and the solution method for searching backbone-grid are given. 严重的社会影响。北美电力可靠性委员会研究报告 Furthermore, according to the theory of analytical hierarchy 指出，部分关键线路的可靠、持续运行对避免连锁 process, the hierarchy structure model and its judgment 跳闸导致的大停电事故具有非常重要的作用[1] 。因 matrixes are set up for ranking the critical lines in 此，有效识别关键线路，以加强该区域的网架结构 ba