Journal of Electrical Engineering ›› 2017, Vol. 12 ›› Issue (12): 11-17.doi: 10.11985/2017.12.002

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A High Fault-Tolerance Performance Algorithm of Wide Area Backup Protection Based on IED

Song Gongyi,Jiang Jianming,Li Yanhai   

  1. Guodian Science and Technology Research Institute Chengdu 610041 China
  • Received:2017-04-19 Online:2017-12-25 Published:2019-12-18

Abstract:

A wide area backup protection algorithm with high fault-tolerance performance based on intelligent electronic device (IED) is proposed to implement the distributed wide area backup protection system.The distributed wide area backup protection system can locate the fault element with fault-tolerance judgment according to fault direction and the zone Ⅰ and Ⅱ of fault distance protection information within the protection coverage.The proposed algorithm is simple and with good fault-tolerance capability,the results of a case study show that it has good adaptability in case any one or two of protection elements mal-operates,fails to operate or loss of fault information since communication outage,it can increase performance of backup protection system greatly.

Key words: Wide area backup protection, high fault-tolerance performance, distributed wide area backup protection system, loss of fault information, communication outage

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