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Challenges and Development Prospects of Relay Protection Technology

(1. National Electric Power Dispatching and Control Center, Beijing 100031, China; 2. State Grid Zhejiang Electric Power Company, Hangzhou 310007, China)


Considering the new developmental tendency of the state grid including hybrid AC/DC power grids, the access of clean energy, and the power electronics dominated power systems, the changed fault characteristics of modern power systems are analyzed, meanwhile, the challenges and development situation faced by relay protection technology are proposed. Based on this, the principles to be persevered for relay protection technology development are summarized. The emphatic development directions are discussed in detail, namely, the plug-and-play outdoor installation protection, the optimally configured back-up protection, the intelligent operation and maintenance system, three technical supporting platforms of relay protection; the control and protection of high voltage direct current(HVDC)transmission; the forward technologies of relay protection.



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[1]CHEN Guoping, WANG Delin, QIU Yutao, et al. Challenges and Development Prospects of Relay Protection Technology[J]. Automation of Electric Power Systems,2017,41(16):1-11. DOI:10.7500/AEPS20170219004
  • Received:February 19,2017
  • Revised:July 08,2017
  • Adopted:June 23,2017
  • Online: July 04,2017
  • Published: