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http://dx.doi.org/10.5370/KIEE.2015.64.4.529

A Study on the Methodology of Determining Proper SOC Operation Range Considering the Economic Characteristics and the Charge and Discharge Voltage Characteristics of BESS  

Yoon, Dae-Sik (Dept. of Electrical Engineering, Incheon National University)
Choo, Dae-Hyeok (Dept. of Electrical Engineering, Incheon National University)
Ki, Byung-Kook (Dept. of Electrical Engineering, Incheon National University)
Kim, Joohn-Sheok (Dept. of Electrical Engineering, Incheon National University)
Lee, Byung Ha (Dept. of Electrical Engineering, Incheon National University)
Chae, Woo-Ku (Microgrid Research & Business, KEPCO Research Institute)
Publication Information
The Transactions of The Korean Institute of Electrical Engineers / v.64, no.4, 2015 , pp. 529-536 More about this Journal
Abstract
With the growing interest of microgrid all over the world, many studies on microgrid operation are being carried out. The battery energy storage system(BESS) is a key equipment for effective operation of the microgrid. In this paper, we analyze the characteristics of the charge and discharge output voltage of the battery and the characteristics of the life-span variation and the investment cost when the state-of-charge (SOC) changes. The formulas to represent the quality of the charge and discharge output voltage of the battery and the economics due to the life-span variation and the investment cost according to DOD(Depth of Discharge) are derived. The methodology of determining the proper operation ranges of the battery SOC with varying the weighting of the quality of its charge and discharge output voltage of the battery and the economics due to its life-span variation and the investment cost is presented using these formulas.
Keywords
BESS; SOC; DOD; Voltage Characteristic; Life-span; Microgrid;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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