The Research of Intelligent Substation Time Synchronization System and the Influence of Its Fault to Relay Protection

Chang-bao Xu, Han Xiong, Li-fu He, Zhong-min Li, Jun Yang

Guizhou Electric Power Research Institute, Guiyang, China.
School of Electrical Engineering, Wuhan University, Wuhan, China.
Wuhan Zhongyuan Huadian Science & Technology CO., LTD, Wuhan, China.

DOI: 10.4236/epe.2013.54B090                

Abstract

The intelligent substation realizes the digitization of information in the whole substation and thus time synchronization system becomes more and more important. This paper introduces time synchronization technology of intelligent substation and puts forward the principles for designing intelligent substation time synchronization system. According to some relay protection malfunction examples caused by time synchronization system fault, analyze the influence of time synchronization system fault to relay protection and correspondingly put forward some improving measures.

Keywords

Intelligent Substation; Time Synchronization System; Protection Device; Influence

Conflicts of Interest

The authors declare no conflicts of interest.

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