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비상시 부하전환 능력 확보를 위한 배전계통 최적 계획 방안
손은태(Eun-Tae Son),오병찬(Byeong-Chan Oh),김성열(Sung-Yul Kim),김홍주(Hong-Joo Kim),유호성(Ho-Sung Ryu),이지원(Ji-Won Lee),조진태(Jin-Tae Cho) 대한전기학회 2023 전기학회논문지 P Vol.72P No.2
This paper proposes an optimization problem for distribution system planning (DSP) in project aimed at ensuring load conversion capabilities during emergencies. The proposed method formulates objective functions to minimize line reinforcement costs and non-convertible capacity, and establishes constraints for system configuration, power flow, and outage-sensitive customers. Additionally, the multi-objective optimization problem for DSP is transformed into a single-objective function using the Epsilon-constraints based Multi-Objective Problem (E-MOP) technique. In a case study, to validate the effectiveness of the proposed method, simulations were conducted on a 37-bus test system. The results of the proposed method were derived a Pareto-front set of optimal DSP solutions, considering the two objective functions with inversely proportional relationships. These results could be provided an optimal solution for DSP, and supported the decision-making of the distribution system operator (DSO).
소규모 에너지 프로슈머를 위한 Pool 거래 기반 전력소매시장에 관한 연구
손은태(Eun-Tae Son),곽형근(Hyung-Geun Kwag),김성열(Sung-Yul Kim),김동민(Dong-Min Kim) 대한전기학회 2018 전기학회논문지 Vol.67 No.2
This paper presents a structure of the retail electricity market based on the local pool with LDERP(Local Distributed Energy Resource Provider) for small energy prosumers. LDERP is an operator for the proposed market, which conducts performance measurement and settlement by the distribution plan determined through contract with participants. The trading process is designed similarly to the negawatt market. In the case study, the many-sided conditions of the proposed market are comparatively analyzed with the existing prosumer programs. The results demonstrate the effectiveness of the proposed framework in determining the purpose of market operating for the benefit of participants according to the various situations.