Solid-state converter topologies for interfacing DC sources with utility power systems

Several renewable power sources which could be integrated with the utility supply require solid state power converters to condition their power output in order to supply it into the grid. For low-power applications, a single phase converter can be used and for medium power applications, this invariably includes three-phase converters. This paper describes the desired characteristics of the generator to utility interface and provides a review of available converter topologies for interfacing energy sources with the grid supplies. The advantages and disadvantages of each topology are discussed.