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박주창(Joochang Park),지오징펑(Zhao Jingfeng),최재석(Jaeseok Choi) 대한전기학회 2021 대한전기학회 학술대회 논문집 Vol.2021 No.10
This paper presents a study on reliability evaluation of a power system HLⅡ(Hierarchical Level Ⅱ). system reliability index as well as nodal(bus) reliability indices can be calculated. In addition, the optimal solution is found through several scenarios in the model system of Jeju Island sized power system. It is, eventually, expected that the proposed methodology will be useful for designing composite power system expansion planning.
재난으로부터의 계통 복구력 개념과 COVID-19 재난에서 7개국의 확진자수 복구력 특성 분석
박주창(Joochang Park),오웅진(Ungjin Oh),이연찬(Yeonchan Lee),정세민(Semin Jeong),최재석(Jaeseok Choi) 대한전기학회 2021 전기학회논문지 Vol.70 No.2
In general, resiliency of the power system can be defined as “the ability of the power system to quickly return to its original state from external shocks, such as natural disasters characterized by great influence and low probability of occurrence.” Data is needed to study resiliency of the power system. However, even though the probability of an accident such as the Chernobyl nuclear accident and the Fukushima nuclear accident is extremely low, it is difficult to establish a database of actual accidents that once occurred accidents can bring a crisis to the survival of mankind. System resiliency, therefore, is very hot issue in recent. This paper develops new function and models in order to identify characteristics of the resiliency for COVID-19 confirmer data for seven countries.