Novel multi-mode single leg converter for renewable energy conversion systems

The digital revolution and faster switching devices have introduced more sophisticated control systems that require high quality and reliable operation. The rapidly growing demand for alternative/renewable energy generation systems and use of energy sources on a large scale, require new technologies. In this paper, a novel renewable energy conversion system, which has the reduced number of switching elements preserving the same power conversion functionality is proposed. The proposed multi-mode energy conversion system is able to supply energy from multi-sources (renewable energy source, battery, and ultra-capacitor) to a load and store energy with the minimum number of switching elements. The proposed approach is verified both by simulations and experiments. The results will enable more timely and wide usage of alternative/renewable energy systems resulting in increased energy security.