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《Power System Technology》 2013-01
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An On-line Identification and Estimation System for Intelligent Dispatching Power Grid Parameters and Its Application in Guangzhou Power Grid

GU Haitong1,GUO Ye2,LIU Yuquan3,HUANG Xin1,WU Wenchuan2,YIN Yiyi4(1.Guangzhou Power Supply Bureau,Guangzhou 510620,Guangdong Province,China;2.Department of Electrical Engineering,Tsinghua University,Haidian District,Beijing 100084,China;3.School of Electic Power,Southern China University of Technology,Guangzhou 510000,Guangdong Province,China;4.Wenzhou Medical College,Wenzhou 325035,Zhejiang Province,China)  
On-line identification of branch parameters is significant for power grid modeling.Based on the improvement of existing Lagrange multiplier-based network parameter error identification,a parameter identification and estimation method based on multiple measurement snapshots is proposed to reduce the impact of random measurement error on estimation results and improve estimation accuracy.On this basis,an on-line parameter identification and estimation system for intelligent dispatching power grid model,which can improve calculation efficiency evidently,is proposed and applied in Guangzhou power grid.
【Fund】: 国家863高技术基金项目(2011AA05A118)~~
【CateGory Index】: TM76
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