Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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An Improved MPPT Converter with Current Compensateion Method for Small Scaled PV-Applications

소규로 태양광 발전시스템을 위한 전류보상기법을 갖는 향상된 MPP 추적 컨버터

  • Noh Hyeong-Ju (Dept. of Electrical Engineering, Hanyang University) ;
  • Lee Dong-Yun (Dept. of Electrical Engineering, Hanyang University) ;
  • Hyun Dong-Seok (Dept. of Electrical Engineering, Hanyang University)
  • 노형주 (한양대학교 전기공학과) ;
  • 이동윤 (한양대학교 전기공학과) ;
  • 현동석 (한양대학교 전기공학과)
  • Published : 2002.07.01
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Abstract

An improved MPPT converter with current compensation method for small-scaled PV-applications is presented in this paper. The proposed method implements maximum power point tracking (MPPT) by variable reference current which is continuously changed during one sampling period. Therefore, the power transferred to the load is increased above $9\%$ by the proposed MPPT converter with current compensation method. As a result, the utilization efficiency of Photovoltaic (PV)-panel can be increased. In addition, as it doesn't use digital signal processor (DSP), this MPPT method has the merits of both a cost efficiency and a simple control circuit design. Therefore, it is considered that the proposed MPPT method is proper to low power, low cost PV-applications. The concept and control principles of the proposed MPPT method are explained in detail and its validity of the proposed method is verified through several simulated results.

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