Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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Fault tolerant control scheme for a converter in a photovoltaic system

태양광 발전시스템의 컨버터 고장에 따른 보상운전기법

  • Park, Tae-Sik (Department of Electrical and Control Engineering, Mokpo National University) ;
  • Hur, Yong-Ho (Korea Electric Power Corporation) ;
  • Lee, Kwang-Woon (Department of Electronic Engineering, Mokpo National Maritime University) ;
  • Moon, Chae-Joo (Department of Electrical and Control Engineering, Mokpo National University) ;
  • Kwak, No-Hong (Department of Electrical and Control Engineering, Mokpo National University)
  • 박태식 (목포대학교 전기 및 제어공학과) ;
  • 허용호 (한국전력공사) ;
  • 이광운 (목포해양대학교 전자공학과) ;
  • 문채주 (목포대학교 전기 및 제어공학과) ;
  • 곽노홍 (목포대학교 전기 및 제어공학과)
  • Received : 2016.03.24
  • Accepted : 2016.07.19
  • Published : 2016.08.30
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Abstract

The demands for photovoltaic systems on a large scale have grown dramatically and require new technologies to get the high efficiency and reliable operations of power conversion systems. These needs can be realized by the cost-effective and high performance digital revolutions and faster semiconductor switching devices. However, the new power systems have been more sophisticated and their reliability becomes critical issues. In this paper, a new fault-tolerance power conversion scheme for the photovoltaic systems is proposed. The proposed fault-tolerant scheme is able to supply energy from solar panels to loads intermittently in spite of a front boost converter open failure, and its voltage and current controllers are designed to improve the transient performance by using an average model design scheme. The proposed approach is verified both by simulations. The results will enable more timely and wide usage of alternative/renewable energy systems resulting in increased energy security.

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References

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