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New Curved Reflectors for Significantly Enhanced Solar Power Generation in Four Seasons

1
School of Electrical Engineering, KAIST, Daejeon 34141, Korea
2
School of Integrated Technology, GIST, Gwangju 61005, Korea
*
Author to whom correspondence should be addressed.
This paper is an extended version of our paper published in 2017 IEEE Workshop on Control and Modeling for Power Electronics (COMPEL), Stanford, CA, USA, 9–12 July 2017; pp. 1–6.
Energies 2019, 12(23), 4602; https://doi.org/10.3390/en12234602
Received: 4 October 2019 / Revised: 17 November 2019 / Accepted: 1 December 2019 / Published: 3 December 2019
(This article belongs to the Section Solar Energy and Photovoltaic Systems)
A new curved-type reflector for solar power generation is proposed. By adopting the curved-type reflector between consecutive solar panel arrays, all incoming sunlight can be utilized and thus, the generated power is significantly increased. Furthermore, the proposed curved-type reflector can be generally used in four seasons regardless of the altitude or angle of the installation environment. The optimum design rule for the curved-reflector, comparing to a plane-type reflector, is completely developed in this paper. A new solar cell configuration best fit for the proposed curved-reflector is also provided. Experimental results showed that the curved-type reflector improves the spatial average solar power by 61% compared to no reflector case, which is even 11% higher than the plane-type reflector. Reflectors, especially curved-type reflectors, are found to be one of promising solutions for highly efficient solar power generation. View Full-Text
Keywords: solar power generation; plane-type reflector; curved-type reflector solar power generation; plane-type reflector; curved-type reflector
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Choi, J.S.; Choi, B.G.; Kim, J.H.; Ryu, S.-T.; Rim, C.T.; Kim, Y.-S. New Curved Reflectors for Significantly Enhanced Solar Power Generation in Four Seasons. Energies 2019, 12, 4602.

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