A Fast Extraction Method in the Applicaton of UHV Transmission Line Fault Location

Li Wang, Jiale Suonan, Zaibin Jiao

1Department of Electrical Engineering, Xi'an Jiaotong University, Xi’an, China 2Department of Technology Center, XJ Group Limited Company, Xuchang, China.
Department of Electrical Engineering, Xi'an Jiaotong University, Xi’an, China.

DOI: 10.4236/epe.2013.54B242                

Abstract

To aim at the distribution parameter characteristics of UHV transmission line, this paper presents a fast extraction method (FE) to extract the accurate fundamentals of current and voltage from the UHV transmission line transient process, and locates the fault by utilizing two-end unsynchronized algorithm. The simulation result shows that this method has good performance of accuracy and stability, and has better location precision by comparing with results of one cycle Fourier algorithm. Therefore the method can efficiently improve the precision of fault location during the transient process, and makes the error of location results less than 0.5%.

Keywords

UHV; Fast Extraction Method; Matrix Pencil; Transient Process; Fault Location

Conflicts of Interest

The authors declare no conflicts of interest.

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