인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Recently, with the global expansion of hydrogen energy adoption, research and demonstration projects on hydrogen-integrated microgrids for carbon emission reduction are actively being carried out in conjunction with renewable energy and ESS. However, for the energy independence of microgrid users in an island operation mode, technical issues such as regulatory compliance, system stability, and power quality arise, necessitating prior verification of expected operational conditions during the system design stage. Therefore, this paper proposes a computational analysis model for the stable operation of hydrogen-integrated microgrids, including hybrid distributed power sources like photovoltaics, fuel cells, ESS, and water electrolysis, using the power system transient analysis program EMTP/RV. Simulations are conducted under independent operation transition and continuation conditions following KEPCO grid separation, considering the control modes of each DERs’ PCS, load variations, and inverter control modes of the grid-forming method. The analysis results confirm that the inertia and damping response of the ESS with a VSM-based GFM inverter contribute to frequency stability improvement under load variation conditions. Additionally, the control performance of the ESS’s GFM inverter under conditions of short-term output variations of photovoltaics due to changes in irradiation can be maintained more stably in terms of power, frequency, and bus voltage compared to the traditional inverter method.
본문·목차
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
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UCI(KEPA) : I410-151-25-02-092328856