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

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on an Evaluation Modeling of Power System Performance for Frequency Regulation ESS Based on the PSCAD/EMTDC

PSCAD/EMTDC를 이용한 주파수조정용 ESS의 계통영향성 평가 모델링에 관한 연구

  • Choi, Sung-Sik (Dept. of Electrical and Engineering, Korea University of Technology and Education) ;
  • Kang, Min-Kwan (Dept. of Electrical and Engineering, Korea University of Technology and Education) ;
  • Lee, Hu-Dong (Dept. of Electrical and Engineering, Korea University of Technology and Education) ;
  • Nam, Yang-Hyun (Dept. of Electrical and Engineering, Korea University of Technology and Education) ;
  • Park, Ji-Hyun (Dept. of Electrical and Engineering, Korea University of Technology and Education) ;
  • Rho, Dae-Seok (Dept. of Electrical Engineering, Korea University of Technology and Education)
  • Received : 2018.02.06
  • Accepted : 2018.07.25
  • Published : 2018.08.01
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Abstract

Recently, the large scaled energy storage system(ESS) which has various functions such as peak saving, demand management, output stabilization of renewable energy and frequency regulation(FR) is being energetically installed and operated. Especially, as the use case of frequency regulation ESS, the KEPCO has demonstrated the total of 376[MW] ESS since 2014. However, there are no operational experiences and international technical standards on frequency regulation application in ESS. Therefore, this paper propose the evaluation algorithm for power system performance of ESS by considering the frequency characteristics between governor of existing generator and frequency regulation ESS, in order to verify the power system performance of ESS. And also, this paper propose an evaluation modeling for small scaled power system including the existing generator, frequency control ESS and customer loads based on the PSCAD/EMTDC S/W. From the simulation results in 360[MW] model power system, it is confirmed that frequency regulation ESS has better performances than conventional generators.

Keywords

References

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