电网故障序列预测  

Fault sequence forecast of power grid

作　　者：陈哲星[1] 宋玮[1] 董卓[1] 武江斌[1] 

机构地区：[1]华北电力大学电气与电子工程学院,河北保定071003

出　　处：《河北工业科技》2010年第6期471-472,476,共3页Hebei Journal of Industrial Science and Technology

摘　　要：对电网中发生故障后可能产生的故障序列进行了预测,首先通过支路过负荷、支路故障率、支路关联度3个角度选择出最有可能发生故障的初始故障线路集,继而考虑过负荷、保护隐性故障以及元件固有的故障率3种情况的综合影响,采用广义的灰色关联分析,对后续可能发生的故障序列进行了预测。最后,利用IEEE-79节点系统对本方法进行验证。In this paper we forecast the fault sequence of power grid when there is a initial fault. First of all, we chose the initial fault from three perspective analysis including overload line, the fault probability of lines and the relational grade of lines. Then we analyzed the comprehensive effect of overload, cascading faults and the fault probability of lines. At last we forecast the fault sequence of power grid, basd on the method of general gray relational grade. The effectiveness of the method in this paper is validated by the IEEE-79 node system.

关 键 词：过负荷 隐性故障 广义灰色关联分析 

分 类 号：TM732[电气工程—电力系统及自动化]