Fault Tolerant of IED in IEC61850 based Substation Automation System

IEC 61850기반 변전소 자동화 시스템에서 IED의 결함 극복 방법

  • Published : 2005.07.18

Abstract

This paper proposes new methods which are used for trouble detecting and tolerance of IED in IEC61850 based Substation Automation System. There are three point devices for construction of this system: Trouble Detection IED, Backup IED and Engineering Unit. Trouble Detection IED tests trouble of Bay IED and sends the result to Engineering Unit. And then Engineering Unit is able to control the system. When fault occurs in Bay IED, Backup IED will be substitute the troubled Bay IED. If this proposed scheme can be used in this system, the reliability of the Power System would be greatly improved.

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