Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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A dP/dV Feedback-Controlled MPPT Method for Photovoltaic Power System Using II-SEPIC

  • Park, Han-Eol (Dept. of Electric Traction and Signaling System of Railway, Seoul National University of Technology) ;
  • Song, Joong-Ho (Dept. of Electrical Engineering, Seoul National University of Technology)
  • Published : 2009.06.20
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Abstract

A dP/dV feedback-controlled MPPT (Maximum Power Point Tracking) method for photovoltaic power systems using II-SEPIC (Isolated Inverse-SEPIC; Single Ended Primary Inductance Converter) is presented and a current-mode dP/dV feedback-controlled MPPT method is devised to apply for the PV power converter system. A control strategy for the current-mode dP/dV feedback control system is developed in this paper and the proposed MPPT shows relatively satisfactory dynamics against rapidly changing insolation conditions. In order to verify the validity and effectiveness of the proposed method, simulations and experiments of the PV power system using II-SEPlC converter are performed. These simulation and experiment results show that the proposed method enables the PV power system to extract maximum power from the photovoltaic module against the solar insolation variation.

Keywords

References

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