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《Power System Technology》 2005-03
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AN EXPERT SYSTEM FOR WIDE AREA PROTECTION SYSTEM PROTECTION ZONE SELECTION

SU Sheng1,K.K. Li2,W.L. Chan2,ZENG Xiangjun1,DUAN Xianzhong3 (1.College of Electrical Engineering,Changsha University of Science and Technology,Changsha 410077,Hunan Province,China;2.Department of Electrical Engineering,HongKong Polytechnic University,HongKong SAR,China;3.Dept. of Electrical Engineering,Huazhong University of Science and Technology, Wuhan 430074,Hubei Province,China)  
With the development and application of IT and communication in power system, numerical current differential protection system has been developed, which facilitate the wide area current differential protection system. An expert system is proposed to select primary and backup protection zone online with system configuration information available from SCADA system, the protection units of the same protection zone communicate with each other and the protected units can thus be protected with current differential protection. Knowledge representation and search strategy has been proposed and the expert system has been applied to select primary and backup protection zone for two cases of system configuration.
【Fund】: 国家自然科学基金项目(50207001);; 香港政府大学基金委员会基金项目(HKUGC B.41.37.Q694);; 湖南省杰出青年科学基金项目(04JJ1011);; 湖南省教育厅重点项目~~
【CateGory Index】: TM769
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