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《Proceedings of the Chinese Society of Universities for Electric Power System and its Automation》 2009-02
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Economic Evaluation of the Multi-group Operation Data Distribution System Based on the Load Change

LU Zhi-gang1,HAN Yan-ling1,ZHU Lian-bo2,GU Shao-zhu2(1.Key Lab of Power Electronic for Energy Conservation and Motor Driveof Hebei Province,Yanshan University,Qinhuangdao 066004,China;2.Qinhuangdao Electric Power Corporation,Qinhuangdao 066004,China)  
Because of the varying load situation,one-group operation data can't reflect the operation status of the power system in the different period of time.With the consideration of the wholeness of the evaluation,a new method which used the multi-group operation data and the double weights to evaluate the economical operation of the distribution system was proposed in this paper.The operation data was divided into three parts under different load conditions,the weights of the data was allocated based on the number of days with the load.The weights of the index were allocated based on the experts' opinion,and AHP was advanced by the Dempster-shafer theory.The results of an example analysis indicate that the evaluation which used the multi-group data can reflect the operation situation of the distribution system roundly and impersonally,and provide the theoretical references for the economical operation of the power system.
【CateGory Index】: TM732
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