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《JOURNAL OF NORTHEAST CHINA INSTITUTE OF ELECTRIC POWER ENGINEERING》 2000-02
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The Application of Phasor Measurement Units in Power Flow

WANG Ke-ying 1,MU Gang 2,CHEN Xue-yun 1(1.Electrical Engineering Department of Harbin Institute of Technology Harbin 150001,China;2.Northeast China Institute of Electric Power Engineering Jilin City 132012,China)  
GPS based synchronous Phasor Measurement Units(PMU) which have been successfully developed and equipped in power systems in recent years can provide bus voltage phasor measurements.The applications of PMU with high precision in power flow calculation are analyzed in the paper in the following ways.1)Consider the PMU buses as VΘ buses,2)Find the direct solution of power flow equations,3)Combine the direct solution of power flow with θ buses.The application of PMU with low precision is to take the measurements as initial values in the iteration of power flow.Some study cases indicate that all of these methods would improve the power flow calculation more or less.The most effective method is the direct(non iterative)solution of power flow using PMU measurements with high precision.The least effective method is to take the PMU measurements with low precision as initial values in the iteration of power flow.
【Fund】: 吉林省科技发展计划资助项目! (990 52 5)
【CateGory Index】: TM74
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