Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Development of a Novel Tracking System for Photovoltaic Efficiency in Low Level Radiation

  • Choi, Jung-Sik (Dept. of Electrical Control Eng., Sunchon National University) ;
  • Ko, Jae-Sub (Dept. of Electrical Control Eng., Sunchon National University) ;
  • Chung, Dong-Hwa (Dept. of Electrical Control Eng., Sunchon National University)
  • Received : 2009.12.07
  • Published : 2010.07.20
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Abstract

This paper proposes a novel tracking algorithm considering radiation to improve the power of a photovoltaic (PV) tracking system. The sensor method used in a conventional PV plant is unable to track the sun's exact position when the intensity of solar radiation is low. It also has the problem of malfunctions in the tracking system due to rapid changes in the climate. The program method generates power loss due to unnecessary operation of the tracking system because it is not adapted to various weather conditions. This tracking system does not increase the power above that of a power of tracking system fixed at a specific position due to these problems. To reduce the power loss, this paper proposes a novel control algorithm for a tracking system and proves the validity of the proposed control algorithm through a comparison with the conventional PV tracking method.

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References

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