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

The Korean Institute of Electrical Engineers (대한전기학회)
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NeW Output Voltage Control Scheme Based on SoC Variation of BESS Applicable for Stand-alone DC Microgrid

독립형 DC 마이크로그리드에 적용 가능한 BESS의 SoC를 기반으로 한 새로운 출력전압 제어기법

  • Received : 2015.01.26
  • Accepted : 2016.06.20
  • Published : 2016.07.01
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Abstract

This paper proposes a new output voltage control scheme based on the SoC variation of the battery energy storage system (BESS) applicable for the stand-alone DC microgrid. The proposed control scheme provides relatively lower variation of the DC grid voltage than the conventional droop method. The performance of proposed control scheme was verified through computer simulations for a typical stand-alone DC microgrid which consists of BESS, photo-voltaic (PV) panel, engine generator (EG), and DC load. A scaled hardware prototype for the stand-alone DC microgrid with DSP controller was set up in the lab, and the proposed control algorithm was installed in the DSP controller. The test results were compared with the simulation results for performance verification and actual system implementation.

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References

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