Power factor correction (PFC) converters feeding brushless DC motor drive

Abstract

This paper presents a comprehensive study of power factor correction (PFC) converters for feeding brushless DC (BLDC) motor drive. This work explores various configurations of PFC converters which are classified into five different categories of non-isolated, bridgeless (BL) non-isolated, isolated, BL-isolated PFC converters and integrated and high quality rectifiersfor feeding BLDC motor drive. A comprehensive study of these PFC convertersis presented with focus on application potential, design and control aspects, components selection, cost of overall system, efficiency issues, power quality and the future trends. The proposed converters have been designed for achieving an improved power quality operation with low amount of total harmonic distortion (THD) of supply current at AC mains for a wide range of speed control at varying supply voltages.

Keywords: Brushless DC (BLDC)Motor, Discontinuous Conduction Mode (DCM), Power Factor Correction (PFC), Power Quality, Voltage Source Inverter (VSI)