Distributed generation system based on single-phase grid, induction generator and solar photovoltaic panel

This paper studies a distributed generation electrical system. It is composed of an induction generator with a prime mover, a single-phase utility grid and a solar panel. All energy sources are connected by using a reduced switch count AC-AC converters. A hydraulic power or an other power controlled source is adopted to drive the induction generator, operating as a prime mover. The control system strategy is conceived to obtain the dc-link voltage equal to that of standard converter with five legs. In addition, the control system is able to operate with a mechanical power controlled, such as that obtained from hybrid energy system. Experimental results are presented.