The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Establishing Operation Mathematical Model for Optimum Capacity Estimation of the ESS Applications for each in the Nationwide Perspective

국가적 관점에서 용도별 ESS 적정용량 산정을 위한 운전수리모델 수립에 대한 연구

  • Kim, Jung-Hoon (School of Electrical Engineering, Hongik University) ;
  • Youn, Seok-Min (Dept. of Electricity Control System Engineering, Hongik University)
  • Received : 2015.11.16
  • Accepted : 2016.04.29
  • Published : 2016.06.01
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Abstract

Around the world are increasing the demand for ESS. Currently, the domestic is expected to benefit by operating ESS. In the domestic, it is expected to benefit from operations of the installed ESS because of the introduction of ESS less capacity. However ESS capacity to the maximum profit occurs is unknown. ESS is different from the charge-discharge characteristics and the reserve to replace, depending on the application. Therefore, it should be established in accordance with the ESS optimal capacity according to the purpose used because it can maximize the quality and efficiency of the electric energy. To the ESS optimal capacity estimation by the purpose used, It should compare the investment cost caused by ESS facility installation and operation cost caused by operating ESS. In this paper, the operation mathematical model for estimating marginal operation costs established. In operation mathematical model, operating cost is considered fuel cost and no-load cost start-up cost. Because no-load cost and start-up cost are not related to cost and power plant output, there are expressed an integer variable costs as a step function.

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