文档介绍：第 35 卷第 12 期电网技术 Vol. 35 No. 12 2011 年 12 月 Power System Technology Dec. 2011 文章编号: 1000-3673 (2011 ) 12-0043-07 中图分类号: TM 712 文献标志码: A 学科代码: 470·4034 大电网连锁故障的风险分析及对策李继红 1 ,戴彦 1 ,王超 1 ,孙维真 1 ,倪秋龙 1 ,陈为化 2 ( 1 .浙江电力调度通信中心, 浙江省杭州市 310007 ; 2 .中国电力工程顾问集团公司, 北京市西城区 100120 ) Risk Analysis and Countermeasures to Prevent Cascading Failures in Large-Scale Power Grids LI Jihong 1, DAI Yan 1, WANG Chao 1, SUN Weizhen 1, NI Qiulong 1, CHEN Weihua 2 (1. Zhejiang Electric Power Dispatch munica tion Center, Hangzhou 310007, Zhejiang Province, China; 2. China Power Engineering Consulting Group Cor poration, Xicheng District, Beijing 100120, China) ABSTRACT: In allusion to the increasing risk of cascading failures occurred in large-scale power grids and considering actual power grid operation conditions, operation characteristics of domestic large-scale power girds and existing risk factors of cascading failures, such as the risk of power system security and stability control devices, the risk of tie-line power flow control for UHV power grids, risk of power grid structure, risk of operating m odes and risk of event of small probability and so on, are analyzed in depth. Based on analysis results and proceeding and from the viewpoint of operation