System and method for regenerative PWM AC power conversion

摘要: A power conversion system for driving a load is provided. The comprises transformer having at least one primary winding circuit and secondary circuit, the being electrically connectable to an AC source. further cell, each of cell input connected respective circuit. Each also has single phase output load. switching arrangement including switch DC bus, controller input. PWM stage plurality switches bus output. local modulation stage. adapted monitoring controlling voltage according predetermined control methodology in both motoring mode which from source supplied by regeneration cell. master communication with monitor flow thereto.