电网技术2012，Vol.36Issue(12)：88-93,6.
基于故障确信度的广域多重故障识别新算法
A Novel Wide-Area Multiple-Fault Location Algorithm Based on Fault Confirming Degree
摘要
Abstract
In allusion to the difficulty in the identification of multiple-faults for wide-area backup protection, a fault confirming degree-based multiple-fault location algorithm for wide-area backup protection is proposed. When multiple-fault occurs in power system, the nodal voltage equation of faulty branch is analyzed to derive an equivalent fault model, and column vectors of branch current based on this model are formed. On this basis, the least square method is utilized to calculate virtual fault locations of preconceived fault combinations; then calculating and comparing fault confirming degrees of suspected fault combinations, real fault locations are determined. The proposed algorithm is not influenced by fault types and transition resistance, so it can be avoided to rebuild admittance matrix after the fault occurs. The proposed algorithm is easy to realize and its calculation burden is less. Both correctness and effectiveness of the proposed algorithm are verified by simulation results of New England 10-machine 39-bus system.关键词
故障等效模型/多重故障定位/故障确信度/广域测量系统Key words
equivalent fault model/ multiple-fault location/fault confirming degree/ wide-area measurement system分类
信息技术与安全科学引用本文复制引用
马静,许冬,王桐,王增平..基于故障确信度的广域多重故障识别新算法[J].电网技术,2012,36(12):88-93,6.基金项目
国家重点基础研究发展计划项目(973项目)(2012CB215200) （973项目）
国家自然科学基金项目(50907021,50837002) （50907021,50837002）
中央高校基本科研业务费专项资金项目(11MG01) （11MG01）
教育部留学回国人员科研启动基金资助项目(教外司留[2011]1139号) （教外司留[2011]1139号）
河北省自然科学基金项目(E2012502034) （E2012502034）
中国电机工程学会电力青年科技创新项目(电机学[2012]46号) （电机学[2012]46号）
河北省电力公司科技项目(KJ[2012]). （KJ[2012]）
