Optimal Capacity Determination of BESS for Customer using Investment Cost and Electric Cost
Jin-Kyung Park, Young-Sik Baek, Ki-Seok Jeong, Jiho Park · The Transactions of The Korean Institute of Electrical Engineers · 2015
This study presents the estimation method for the optimal capacity of BESS(Battery Energy Storage System) in order to reduce the electric charges of common consumer. The daily optimal charge and discharge plan of BESS which satisfies the given constraints is established using linear programming through the change of rated output/rated capacity of the time that shows the electric charges in the highest reduced rate has been selected. There will be a problem to compare only reduced rate because the bigger the rated capacity, the more reduced rate is increased. Therefore, rated output/rated capacity of the time when the reduced amount of electric charges for a year is higher than the investment cost of BESS was selected.