A wide input range active multi-pulse three-phase rectifier for utility interface of power electronic converters

In this paper, a wide input range active multipulse rectifier for utility interface of power electronic converters is proposed. The scheme combines a multi-pulse method using a Y-/spl Delta/ transformer and boost rectifier modules. A current control scheme for the rectifier modules is proposed to achieve sinusoidal line currents in the utility input over a wide input range of input voltage and output load conditions. A design example is included for a 208 V to 460 V input, 750 V/sub dc/, 10 kW output rectifier system. Input current THD is less than 5% for almost no load to full load conditions. Simulation results are shown.