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조규정(Gyu-Jung Cho),신승권(Seung-Kwon Shin),정호성(Hosung Jung),김주락(Joorak Kim),김재원(Jaewon Kim),김형철(Hyungchul Kim),김철환(Chul-Hwan Kim) 대한전기학회 2020 전기학회논문지 Vol.69 No.10
Commercial Electomagnetic Transient Programs show accurate transient results by solving differential equations with respect to the circuit, but are not suitable for fast, data-based analysis. The open source distribution simulator is an open program developed for planning and analysis of the distribution system, and provides a strong linkage function with external programs and fast processing speed. In this paper, a process of modeling through an open source distribution simulator was proposed by considering the double-track parallel feeding system applied to the domestic high-speed railway system as a representative. The proposed modeling method was verified by simulating the target system under the equal conditions with a transients program and comparing the results. Modeling and utilizing the railway system through flexible and simple text-based open software can contribute to future artificial intelligent-based analysis, or energy efficiency in terms of operational aspects.
인버터 기반 분산전원의 무효전력 제어 특성에 따른 분산전원의 수용용량 및 전압조정 설비의 운영 계획 분석
조규정(Gyu-Jung Cho),김지수(Ji-Soo Kim),송진솔(Jin-Sol Song),신재윤(Jae-Yun Shin),김동현(Dong-Hyun Kim),김철환(Chul-Hwan Kim) 대한전기학회 2018 전기학회논문지 Vol.67 No.7
Distributed generations (DGs) using renewable energy resources in power systems have been widely integrated, and many of these DGs have intermittency. DGs can significantly affect the overall voltage profile of the system through the reactive power control for a voltage support. Therefore, in the planning stage of the optimal operation and dispatch of voltage regulation devices, DGs’ hosting capacity with the reactive power control scheme should be considered. In this paper, we model the IEEE 34-bus test feeder, including all essential equipment. An optimization method is utilized to determine the optimal siting and operation of the voltage regulation devices in the presence of DGs with reactive power control scheme. Finally, we compare the optimal results of the each case to analyze the relationship among the hosting capacity of the DGs and voltage regulation devices operation.