Research of relationship between SFCL and distance relay of power system and the improvement of the algorithm of distance protection
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With deep research of SFCL,the matching problem between SFCL and relay protection in power system is to be solved.This paper theoretically analyzes the influence that bridge-type SFCL brings to the distance relay.And considering the characteristics of microcomputer-based protection,a new algorithm is proposed to eliminate the influence.EMTDC/PSCAD simulation shows that the algorithm is valid.It is a new idea to solve the matching problem between SFCL and distance relay protection.