Design Considerations in the Control of Single Phase Boost Power Factor Corrected Rectifier for Utility Applications

Abstract

Any power electronic equipment has a front end diode bridge rectifier which converts the AC line voltage to a constant DC voltage. But this front end converter draws peaky and highly distorted current from the grid, which invariably has high total harmonic distortion and very poor power factor. To overcome this problem of poor power factor and high distortion in the current waveform, several modifications in the diode bridge rectifier is proposed and the most popular among them is the boost power factor corrected rectifier. This paper discusses the control aspects of the single phase boost power factor corrected rectifier. Particularly, the design considerations involved in the dual loop control of boost power factor corrected rectifier, with inner inductor current control and outer voltage loop control is addressed and verified through simulation results.