20㎾급 태양광ㆍ풍력 복합발전시스템

This paper deals with stand-alone Photovoltaic system(SPVS) with charger/discharge controller. Main power source of SPVS are generally solar cell and battery. Therefore SPVS can be classified into variable types in accordance with connection type between battery and solar cell. SPVS with charger /discharge controller which can operate solar cell at maximum power point is suggested and designed with instantaneous controller. And system operating characteristics are verifieded by experiment with a laboratory prototype in this paper.