Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Parallel operating technique for the stand alone PV PCS

독립형 태양광 인버터의 병렬 운전 기법

  • Jeong, Ku-In (Department of Electrical Engineering, Hanbat National University) ;
  • Kwon, Jung-Min (Department of Electrical Engineering, Hanbat National University)
  • 정구인 (한밭대학교 전기공학과) ;
  • 권정민 (한밭대학교 전기공학과)
  • Received : 2015.10.06
  • Accepted : 2015.12.04
  • Published : 2015.12.30
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Abstract

In this paper, a parallel operating technique for the stand alone photovoltaic (PV) power conditioning system (PCS) is proposed. The proposed parallel operating technique can increase the power rating of the system easily. Also, it provide three-phase connection function. The proposed technique does not separated master and slave system. Also, it does not use the separated synchronization line. Therefore, the PCS can supply continuous power even if one of the PCS breaks down. This technique is composed of a phase locked loop (PLL) control, droop control, current limit control and etc. Experimental result obtained on 2-kW prototype to verify the proposed technique.

Keywords

References

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