Power Factor Correction Converter fed Permanent Magnet Brush Less Direct Current Motor Drive

Abstract

Abstract: In this thesis the performance of a power factor correction (PFC) converter fed voltage source inverter (VSI) supplying permanent magnet brushless direct current (PMBLDC) motor drive is analyzed for the variable speed operation of an air conditioner. And a single-phase diode bridge rectifier together with a boost converter is considered as a PFC converter, which improves the quality of the current drawn from the ac mains. This converter is capable of supplying a constant dc link voltage to VSI fed PMBLDC motor, even when the voltage of the ac mains fluctuates. The closed loop control of PFC converter and VSI fed PMBLDC motor provides a better control and facilitates energy conservation in ac distribution system, PMBLDC motor and the compressor of an air conditioner. The proposed system is modeled and its simulated performance are presented and discussed.