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《Automation of Electric Power Systems》 2009-19
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A Network-adapted Traveling-wave Fault Location Method

DENG Feng1,ZENG Xiangjun1,CHEN Nan2,LI Zewen1,LI Libin3(1.Changsha University of Science and Technology,Changsha 410015,China;2.Wuhan University,Wuhan 430072,China;3.Sinohydro Engineering Bureau 8,Changsha 410015,China)  
The existing of loop in the transmission network may effect the matching of initial traveling wave arrival time and its transmission path,which causes an error for fault location.That is why a traveling wave fault location method for self-adapt network structure is proposed.Floyd algorithm is applied to search the shortest path from the fault point to all the nodes in the network when the fault line is without a loop.As for the fault line with some loops,the node,which records the maximal traveling wave arrival time,is suggested that directly connects with non-shortest path,and the relative time criterion for eliminating the non-shortest path in the loop is proposed.By loop simplification,the complicated network can be simplified into radial network.The fault position can be calculated accurately in the radial network with network-based traveling wave fault location algorithm.Simulation results show that the network simplification method is easy to implement,and suitable for any network structure.
【Fund】: 国家自然科学基金资助项目(50577001);; 湖南省自然科学基金资助项目(07JJ3110)~~
【CateGory Index】: TM755
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【Citations】
Chinese Journal Full-text Database 4 Hits
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【Co-citations】
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