Comparative evaluation of circuit topologies for 1-phase and 3-phase boost rectifiers operated with a low current distortion

This paper provides a survey of circuit topologies that can be used in current-controlled PWM boost rectifiers using MOSFET or IGBT type semiconductors. The topologies described are intended for controlling a nonisolated regulated DC-rail voltage whilst achieving unity fundamental power factor low current distortion operation from 60 Hz 1-phase and 3-phase AC supplies. Topologies are described for inverter legs to obtain various performance features such as low conduction losses, high efficiency, low switch count, low semiconductor voltage stresses, 3-level or 2-level PWM voltage waveform and, finally, bi-directional power conversion. Circuit topologies are described for rectifiers that use a single or a split DC-rail and for rectifiers using either AC or DC side inductors