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Research on traveling wave protection criterion on HVDC transmission line
Author(s): 
Pages: 41-44
Year: Issue:  10
Journal: RELAY

Keyword:  高压直流行波保护仿真小波变换;
Abstract: 目前,国内外投运的行波保护普遍存在着可靠性差的问题.针对该问题,简要分析了实际工程中行波保护存在的缺陷.同时,在使用EMTDC暂态仿真软件对各种直流线路故障进行仿真计算的基础上,对目前国际上具有代表性的两种行波保护判据进行了对比性分析与研究;并提出了基于小波变换的行波方向保护新原理,提高了行波保护的可靠性.
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