Literature Review of Fault Location Research for HVDC Transmission Lines

Abstract

The HVDC line fault location methods at home and abroad are surveyed in this paper. Firstly, the disadvantage of the existing fault location techniques of HVDC transmission line is analyzed, and it points out that the engineering applications of fault location based on traveling wave principle is most widely used. The fault location principle is relatively simple, but requiring high sampling rate, and its tolerance ability of high resistance is not sufficient. Using the fault location dividing method of AC transmission line for reference, the fault location principle of HVDC transmission line is classified and studied. The HVDC transmission line fault location methods are divided into traveling wave method and fault analysis method. Furthermore, the advantages and disadvantages of each fault location principles of HVDC transmission line are reviewed respectively and it points out that fault analysis method has broad application prospects. Finally, several important problems which need to be further studied are proposed.