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논문 기본 정보

자료유형
학술저널
저자정보
황승욱 (Korea University of Technology and Education) 김지명 (Korea University of Technology and Education) 한병길 (Korea University of Technology and Education) 최성문 (Korea University of Technology and Education) 노대석 (Korea University of Technology and Education)
저널정보
대한전기학회 전기학회논문지 전기학회논문지 제71권 제6호
발행연도
2022.6
수록면
844 - 855 (12page)
DOI
10.5370/KIEE.2022.71.6.844

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Recently, ESS(energy storage system) for output stabilization of renewable energy source, peak demand management, frequency control, etc. is actively installed and operated. However, as the fire accidents are continuously occurred in ESS, the Korean government has presented the causes of fire accidents and countermeasures for safety enhancement through the public-private joint accident investigation committee, which recommends the installation of electrical protection devices such as SPD(surge protect device) and IMD(insulation monitoring device). However, it is reported that the capacity of SPD (U<SUB>c</SUB>, U<SUB>p</SUB>) installed and operated in each ESS site is different and improper due to the absence of installation regulations. When the inappropriate capacity of SPD is adapted at DC side in ESS, there are possibilities that the battery may be negatively affected as SPD cannot properly protect the battery from the lightning and switching surges. Therefore, this paper proposes an algorithm to calculate the appropriate capacity of SPD for the stable operation of ESS and performs the modeling of surge test device, which is composed of surge generator, SPD, battery, etc., using PSCAD/EMTDC, in order to evaluate operation characteristics of SPD for the lightning and switching surges. And also this paper implements surge test device which generates 3rd class combination wave for lightning surge and switching surges. From the simulation and test results based on the presented modeling and test device, it is confirmed that the SPD can safely protect the battery from the lightning and switching surges when the proper SPD calculated by the proposed algorithm is installed.

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Abstract
1. 서론
2. 전기저장장치용 SPD의 특성분석
3. ESS용 SPD의 적정용량 산정 알고리즘
4. PSCAD/EMTDC를 이용한 ESS용 SPD의 시험장치 모델링
5. ESS용 SPD의 시험장치 구현
6. 시뮬레이션 및 시험 결과분석
7. 결론
References

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