Low power photovoltaic system for energy supplying for small loads

This paper presents the development of a low power photovoltaic system for energy supplying for small loads in emergency situations. The system consists of three power converters that work to charge batteries, boost voltages and provide an alternating signal to the load. The factors considered in the selection of each converter, their main characteristics and design equations are presented. The major contribution of the proposed system is its simplicity and reduced size and weight. Experimental results show the stand-alone operation of each converter and a prototype for the complete system.