KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
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Gird Connected Modeling of Primary Frequency Recovery Reserve Provided by Electric Vehicle Considering Characteristics of Electric Vehicle Charge/Discharge Control Integrated Environment

전기자동차 충·방전제어 통합 환경을 고려한 전기차 1차 주파수 회복예비력의 계통연계형 모델링

  • Kook, Kyung Soo (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Lee, Jihoon (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Moon, Jonghee (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Choi, Wooyeong (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Park, Kijun (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Jang, Dongsik (KEPCO Research Institute, Korea Electric Power Corporation)
  • Received : 2020.05.19
  • Accepted : 2021.09.27
  • Published : 2021.12.30
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Abstract

As the spreading speed of electric vehicles increases rapidly, those are expected to be able to use them as flexible resources in the power system beyond the concern for the supply of its charging power. Especially when the Renewable Energy sources (RES) which have no intrinsic control capability have replaced the synchronous generators more and more, the power system needs to secure the additional frequency control resources to ensure its stability. However, the feasibility of using electric vehicles as the frequency control resources should be analyzed from the perspective of the power system operation and it requires the existing simulation frameworks for the power system. Therefore, this paper proposes the grid connected modeling of the primary frequency control provided by electric vehicles which can be integrated into the existing power system model. In addition, the proposed model is implemented considering technical performances constrained by the characteristics of the Vehicle-Grid Integration (VGI) system so that the simulation results can be accepted by the power utilities operating the power system conservatively.

Keywords

Acknowledgement

This research was supported by Korea Electric Power Corporation.(Grant number : R20XO03-05)

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