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A Study on The Performance Verification and Economic Evaluation of ESS for Frequency Regulation Application

주파수조정용 ESS의 성능검증 및 경제성평가 알고리즘에 관한 연구

  • Lee, Ju-Gang (Division of Electrical Engineering, Korea University of Technology and Education) ;
  • Choi, Sung-Sik (Division of Electrical Engineering, Korea University of Technology and Education) ;
  • Kang, Min-Kwan (Division of Electrical Engineering, Korea University of Technology and Education) ;
  • Rho, Dae-Seok (Division of Electrical Engineering, Korea University of Technology and Education)
  • 이주광 (한국기술교육대학교 전기공학부) ;
  • 최성식 (한국기술교육대학교 전기공학부) ;
  • 강민관 (한국기술교육대학교 전기공학부) ;
  • 노대석 (한국기술교육대학교 전기공학부)
  • Received : 2017.02.03
  • Accepted : 2017.05.12
  • Published : 2017.05.31

Abstract

Recently, the installation of energy storage systems (ESSs) has increased in parallel with the extension of renewable energy resources. However, there has been no concrete analysis ofthe performance verification and economic evaluation of ESSs,which makes it difficult to perform aneffective installation and operation of an ESS. In particular, there are no international technical standards and guidelines on electric ESS for frequency regulation applications. Therefore, acomprehensive study on the power quality, impact on grid, extent of contribution, and cost benefit study of ESS are strongly being required. Under these backgrounds, this paper proposes a performance verification algorithm on ESS for frequency regulation application based on ananalysis of the AGC(Automatic Generation Control) performance verification method of PJM in USA. In addition,this paper proposes an economic evaluation algorithm on a 500 MW installation of ESS for frequency regulation applications using the account settlement of an expensive gas-fired generation plant and coal-fired power generation plant. From the simulation with real ESS operation data and 500 MW installation case, it wasconfirmed that the ESS showssuperior performance toany other conventional generators and provides anannual benefit of 500 MW ESS are between 345~429 billon won.

Keywords

Automatic Generation Control;Energy Storage System;Economic Evaluation;Frequency Regulation;Governor Free Operation;Performance Verification

References

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