A Fault Location Algorithm for Series Compensated Lines Based on Two-end Information
The conventional fault location algorithm cannot be used for the series compensated line directly because of the nonlinear V-A characteristic of Metal Oxide Varistor (MOV)installed in parallel with the series capacitor (SC) for protection purpose.Using the Bergeron line model, we deduce a formula to calculate the current at one end using the voltage at the same end and the current at the other end.Applying this formula to fault location, a fault location algorithm for the series compensated lines is proposed.The proposed algorithm uses two-end synchronous voltage and current data locate fault through a time domain line model with distributed parameters.Theoretically, this algorithm does not rely on the model of series compensator and is not affected by the nonlinear V-A characteristic of MOV.Simulation results using PSCAD and MATLAB showed that the proposed algorithm is not only able to offer high accuracy, but also not affected by fault type, fault location and fault path resistance.
Distributed parameter line model Fault location Series compensated line Two-end information
Shien He Xiaoning Kang Zaibin Jiao Long Zhao Liang Lu Rong Huang
Wind Power Technology Center, Gansu Electric Power Corporation, Lanzhou, 730050,Gansu, P.R.China Department of Electrical Engineering, Xian Jiaotong University, Xian, 710049, Shaanxi, P.R.China
国际会议
南京
英文
740-745
2015-09-21（万方平台首次上网日期，不代表论文的发表时间）