Multilevel single phase isolated inverter with reduced number of switches
Document typeConference report
Rights accessOpen Access
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.
CitationVerdugo, C. [et al.]. Multilevel single phase isolated inverter with reduced number of switches. A: IEEE International Conference on Renewable Energy Research and Applications. "ICRERA 2018: IEEE 7th International Conference on Renewable Energy Research and Applications: Paris, France: Oct. 14-17, 2018". 2018, p. 1202-1208.