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《Journal of Electric Power》 2011-02
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Research on Fault Location in Distribution Network on S Injection Method

HAO Jian-qiang(Shanxi Electric Power Corp.,Taiyuan Supply Power Sub.company,Taiyuan 030012,China)  
This paper presents a fault location in distribution network based on S injection method.The system is composed of two parts: constant current signal source and a signal detector.The control segment of constant current signal source employs the nonlinear PID control,which enables the developed system suitable for a very wide range of grounding impendence.The signal detector adopts the coding and high order filter.The fault locating method has the advantages of high resistant disturbance,high reliability and high sensitivity,and applies to fault location in complex distribution networks.
【CateGory Index】: TM727
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