Design Technique of High Power Efficiency LLC DC-DC Converters for Photovoltaic Cells

  • Hisatsugu Kato
  • Yoichi Ishizuka
  • Kohei Ueda
  • Shotaro Karasuyama
  • Atsushi Ogasahara

Abstract

This paper proposes a design technique of high power efficiency LLC DC-DC Converters for Photovoltaic Cells. The secondary side circuit and transformer fabrication of proposed circuit are optimized for overcoming the disadvantage of limited input voltage range and, realizing high power efficiency over a wide load range of LLC DC-DC converters. The optimized technique is described with theoretically and with simulation results. Some experimental results have been obtained with the prototype circuit designed for the 80 - 400 V input voltage range. The maximum power efficiency is 98 %.

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Design Technique of High Power Efficiency LLC DC-DC Converters for Photovoltaic Cells
Published
2018-07-16
How to Cite
KATO, Hisatsugu et al. Design Technique of High Power Efficiency LLC DC-DC Converters for Photovoltaic Cells. Journal of Energy Technology Research, [S.l.], v. 2, n. 1, p. 30-46, july 2018. ISSN 2514-4715. Available at: <https://www.archyworld.com/journals/index.php/jetr/article/view/118>. Date accessed: 16 dec. 2018. doi: https://doi.org/10.22496/jetr.v2i1.118.
Section
Articles