전기학회논문지P (The Transactions of the Korean Institute of Electrical Engineers P)

  • 제67권1호
  • /
  • Pages.15-20
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  • 2018
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  • 1229-800X(pISSN)
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  • 2586-7792(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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독립형 신재생발전 시스템의 효율적인 운영을 위한 배터리 용량산정에 관한 연구

A Study on Sizing of Battery for Effective Operation of Stand-alone Renewable Generation System

  • Shin, Hee-Sang (Korean Intellectual Property Office) ;
  • Hue, Jae-Sun (Hyosung Power & Industrial systems Research Center) ;
  • Yun, Sang-Yun (Department of Electrical Engineering Chonnam National University)
  • 투고 : 2018.02.14
  • 심사 : 2018.02.26
  • 발행 : 2018.03.01
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초록

This paper presents the method of ESS energy capacity calculation for stand-alone renewable energy generation system consisting of photovoltaic energy. There is almost no power from photovoltaic system during sunless days. So this source is very weak in terms of the power supply reliability. To improve problem of power supply, battery is mainly used Energy Storage System(ESS). The number of sunless days and Depth of Discharge(DOD) is important factor to determine energy capacity of battery. However, a many study for economical design is required due to the high cost of ESS. In this paper, we propose the new method of ESS energy capacity calculation by applying different DOD for operation with and without sun. We determine the Battery capacity using higher DOD of operation during sunless day than the DOD of the normal operation. And we carried out an economic analysis of the calculation results.

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참고문헌

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