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도시철도부하 수요자원 관리에 ESS 활용 시 경제성 분석
박종영,허재행,김형익,김형철,신승권,Park, Jong-young,Heo, Jae-Haeng,Kim, Hyeongig,Kim, Hyungchul,Shin, Seungkwon 대한전기학회 2017 전기학회논문지 Vol.66 No.1
The aims of the demand response market are stabilization of the power supply and improving of the reliability of the power system. The various applications of the energy storage system (ESS) in the railway systems are studied and implemented to raise the energy efficiency. It is one of the most important how to determine the obligation reduction capacity (ORC) in participation to the demand response market because it has an influence on the profit extremely. In this paper, when participating to the demand response market with demands in the urban railway, we calculated the available ORC and economically evaluated ESS based on the real load data.
허재행(Jae-Haeng Heo),김형철(Hyungchul Kim),신승권(Seungkwon Shin),박종영(Jong-young Park),김형익(Hyeongig Kim) 대한전기학회 2016 전기학회논문지 Vol.65 No.9
To execute load curtailment efficiently for Urban Railway Load, the load patterns of the Urban Railway Load and available amount of load curtailment over the Urban Railway Load are analyzed through comparing the load to the common power loads. In addition, the current policies of the load curtailment for the Urban Railway Load are investigated and the problems of those are presented. Based on the researches, the optimal load curtailment strategies for the Urban Railway Load are proposed to minimize the consumer’s utility diminishment and the costs of the use of energies. Finally, the optimal load curtailment strategies are applied to the real Urban Railway Load, the results shows that proposed methods are efficient and cost effective while the amount of load curtailment is minimized.
도시철도부하 수요자원 관리에 ESS 활용 시 경제성 분석
박종영(Jong-young Park),허재행(Jae-Haeng Heo),김형익(Hyeongig Kim),김형철(Hyungchul Kim),신승권(Seungkwon Shin) 대한전기학회 2017 전기학회논문지 Vol.66 No.2
The aims of the demand response market are stabilization of the power supply and improving of the reliability of the power system. The various applications of the energy storage system (ESS) in the railway systems are studied and implemented to raise the energy efficiency. It is one of the most important how to determine the obligation reduction capacity (ORC) in participation to the demand response market because it has an influence on the profit extremely. In this paper, when participating to the demand response market with demands in the urban railway, we calculated the available ORC and economically evaluated ESS based on the real load data.
도시철도 부하특성을 고려한 ESS의 최적 운영방안 연구
허재행(Jae-Haeng Heo),신승권(Seungkwon Shin),박종영(Jong-young Park),김형익(Hyeongig Kim) 대한전기학회 2015 전기학회논문지 Vol.64 No.10
This paper proposes the optimal operation of ESS (Energy Storage System) in the substation of urban railway in an economical point of view. Since the load patterns of urban railway have different characteristics with the general power demand pattern, the characteristics motivate us to develop the optimal operation algorithm for ESS under Korean electricity billing system. We also introduce two different ESS operation strategies for peak load shaving and electricity consumption charge minimization respectively, and formulate each scheme. Historical data from Namgwangju substation are used for economical comparison of the strategies. The results show that the proposed algorithm is the most cost-effective ESS operation scheme among the strategies and reduces around 5 percent of electric charges compared to the charge without ESS operation.