Multilevel Single Phase Isolated Inverter with Reduced Number of Switches
Location: Paris, France
Publication date: 2018-10-14
Published in: The 7th International Conference on Renewable Energy Research and Applications 2018, Paris (France) - ICRERA 2018
ref. DOI: 10.1109/ICRERA.2018.8566932

Local members

Jose Ignacio Candela

PhD. Senior Researcher. Project Responsible



This paper proposes a cascaded single phase multilevel inverter using an off-the-shelf three-phase inverter and transformer. The concept is based on a cascaded connection of two inverter legs using a typical three phase inverter in such a way that the third leg is shared between the other two phases. The cascaded connection is achieved through an integrated series transformer with a typical three-phase transformer core. Utilization of a special transformer design has been previously proposed in the Custom Power Active Transformer. However, cascaded connection of inverter legs has not been previously investigated with such a concept. In this way, a three-leg inverter and a three-phase transformer are converted into an isolated multilevel single-phase inverter based on an unique configuration and modulation technique.