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논문 기본 정보

자료유형
학술저널
저자정보
이예빈 (Korea University of Technology and Education) 김지명 (Korea University of Technology and Education) 이민행 (Korea University of Technology and Education) 노성은 (Korea University of Technology and Education) 김세진 (Korea University of Technology and Education) 노대석 (Korea University of Technology and Education)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제73권 제5호
발행연도
2024.5
수록면
773 - 783 (11page)
DOI
10.5370/KIEE.2024.73.5.773

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Recently, fire accidents in ESS installed for various applications have been occurred constantly and particularly those of long time operated ESS have been increased. Accordingly, researches are actively conducted on risk factor evaluations considering safety standards in ESS, and operation environments and applications of ESS are evaluated as major causes of fires and potential battery safety. Therefore, this paper proposes a risk priority number evaluation method composed of severity, occurrence and detection degrees, to estimate the safety level of ESS considering operation environments and applications. Where, the severity degree is quantitatively calculated by fault cases impact of applications, magnitude of fault current and building type of ESS, and the occurrence is determined by accident rates, operation environments and degradation rates, and also the detection is estimated with engineering technology of safety devices and battery capacity. This paper also performs the modeling of the fault analysis in ESS, which is composed of distribution system, customer load, fault devices and ESS in order to evaluate fault cases based on ESS applications. From the simulation results based on the proposed safety evaluation method, it is confirmed that frequency regulation and renewable energy applications in ESS mainly installed in mountain and coast areas is adversely affected by environment factors such as dust and humidity, and detailed measures related with continuous monitoring for operation environments are strongly required to ensure the safety in ESS.

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Abstract
1. 서론
2. ESS의 화재사고 사례 분석
3. 운용환경 및 용도를 고려한 ESS의 안전성 평가 방안
4. PSCAD/EMTDC를 이용한 ESS의 사고 특성 모델링
5. 시뮬레이션 결과 및 분석
6. 결론
References

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