Simulation on Calculation Accuracy of Three Methods for Live Line Measuring the Parameters of Transmission Lines with Mutual Inductance

Jianjun Su, Ronghua Zhang, Demin Cui, Yongqiang Chai, Xiaobo Li, Chengxue Zhang, Peiyan Li, Zhijian Hu, Yingying Hu

Dezhou Power Supply Company, Shandong Electric Power Group Co., Dezhou, China.
School of Electrical Engineering, Wuhan University, Wuhan, China.

DOI: 10.4236/epe.2013.54B272                

Abstract

Live line measurement methods can reduce the loss of power outages and eliminate interference. There are three live line measurement methods including integral method, differential method and algebraic method. A simulation model of two coupled parallel transmission lines spanning on the same towers is built in PSCAD and the calculation errors of these three methods are compared with different sampling frequencies by using of Matlab. The effect of harmonic on calculation is also involved. The simulation results indicate that harmonic has the least effect on the algebraic method which provides stable result and small error.

Keywords

Lines with Mutual Inductance; Zero Sequence Parameters; Live Line Measurement; Algebraic Method; Differential Method; Integral Method

Conflicts of Interest

The authors declare no conflicts of interest.

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