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분산전원이 연계된 배전계통의 보호계전기 오동작 현상 분석

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Alternative Title
Analysis of Protective Relay Malfunction Symptoms in Distribution System Interconnected with Distributed Generations
Abstract
A systemic investigation conducted through the experiment for the causes of malfunctions failure on over current ground relay of distribution system which is connected to distributed generation (wind turbines). Consequently, it was comprehended that the zero-sequence current flowing in the neutral wire induces this behavior.
Distributed generation to the distribution system that uses linked to the wiring to the transformer primary side winding Y-Y KEPCO and neutral and ground because it uses the earthing, the zero-sequence current can be increased by an unbalance load current, harmonic current and imbalance of distribution system.
As the solutions of these problems, the setting parameters change of protective relay, installation of zero-harmonics suppressor and directional over current ground relay were suggested.
Author(s)
홍진철
Issued Date
2011
Awarded Date
2012. 2
Type
Dissertation
URI
http://dcoll.jejunu.ac.kr/jsp/common/DcLoOrgPer.jsp?sItemId=000000005788
Alternative Author(s)
Hong, Jin-Cheol
Affiliation
제주대학교
Department
산업대학원 전기전자공학과 전기공학전공
Advisor
김세호
Table Of Contents
LIST OF FIGURES ii
LIST OF TABLES iii
SUMMARY ⅳ
Ⅰ. 서론 1
Ⅱ. 분산전원 모델 선정 및 전력측정 3
2.1 분산전원 3
2.2 분산전원 모델 선정 5
2.3 OCGR 오동작 현상 6
2.4 전력품질 측정 6
Ⅲ. 보호계전기 오동작 현상 분석 11
3.1 풍력발전기와의 연관성 검토 11
3.2 영상전류의 측정 및 분석 13
3.3 고조파의 측정 및 분석 15
3.4 OCGR 오동작 해결 방안 23
Ⅳ. 결론 26
참 고 문 헌 27
Degree
Master
Publisher
제주대학교 산업대학원
Citation
홍진철. (2011). 분산전원이 연계된 배전계통의 보호계전기 오동작 현상 분석
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Graduate School of Industry > Electrical Engineering
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