Design aspects of synchronous PWM rectifier-inverter systems under unbalanced input voltage conditions

The effects of input line voltage unbalance are analyzed, starting with the distortion in the input line currents and extending to the DC bus components and inverter output line voltages and currents. Analytical results are used to obtain system design curves as a function of the input voltage unbalance for all major system components. Key predicted results were verified on a 2 kVA prototype unit.<
>