Power Electronic Transformer based Three-Phase PWM AC Drives (original) (raw)

This thesis introduces a novel approach to power electronic transformers (PETs) specifically designed for three-phase PWM AC drives. Addressing the challenges posed by traditional power conversion systems, it proposes multiple new topologies and control strategies aimed at enhancing power density, improving reliability, and enabling bi-directional power flow without the dependence on passive components like electrolytic capacitors. Key applications in renewable energy systems, such as wind and solar power, are explored to demonstrate the practical implementation of these advanced PET designs.