A stand-Alone Photovoltaic Generation System with Soft-Switching Converters

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  • スタンドアローン駆動型太陽光発電システム用ソフトスイッチングコンバータ
  • スタンドアローン クドウガタ タイヨウコウ ハツデン システムヨウ ソフトスイッチングコンバータ

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Abstract

This paper deals with stand-alone photovoltaic (PV) generation systems low power DC applications, where a combined energy storage device consisting of an acid battery and Electric Double Layer Capacitor (EDLC) to avoid the deep discharge of the acid battery. Two types of the stand-alone PV generation systems, with a conventional converters and soft-switching converter, are constructed and tested. Experimental results demonstrate that the conventional type is very simple, but a large capacity EDLC is needed because of low efficiency. Efficiency of the PV generation system with soft-switching converters is high compared with that of the conventional type, and reduces the capacity of the EDLC. The PV generation system with soft-switching converters is useful for practical applications.

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