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《Engineering Journal of Wuhan University》 2012-01
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Error analysis and correction of long line power frequency parameters measured by varying frequency method

CAI Chengliang1,CHENG Nan2,FAN Yi2(1.Electric Testing & Research Institute of Hubei Electric Power Company,Wuhan 430077,China;2.Wuhan Yitian Technology Co.,Ltd.,Wuhan 430074,China)  
Basing on the transmission lines distributed parameter model,the open-circuit and short-circuit impedances of power line are simulated and tested.The error caused by the distribution parameters impact is analyzed when the frequency parameters of ultra-long AC DC power line are measured through varying frequency method with single-ended.The field test data of the DC power line frequency parameters verified the simulation results;and the data correction is performed based on the distributed parameter model to eliminate frequency parameters measurement error of the long power line,especially the DC power line.
【CateGory Index】: TM934.1
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