Comparison And Performance Analysis of Multiple PFC Topologies for BLDC Motor Drive

Abstract

Conventional DC-DC converters with diode bridge rectifiers utilized to operate DC load consume high reactive power from the source causing drop in power factor. The ripple of the output DC voltage will also be high which can damage the load or the equipment connected to the circuit. To ensure these problems to be mitigated PFC converters are used for reduced consumption of reactive power improving the power factor of the source. With these PFC converters there will also be reduction in output voltage ripple increasing the reliability of the load modules. In this paper different PFC based circuits are modeled and their performance is compared when they are operating a BLDC motor. The compared circuits are a) Cuk b) BL- Buck-Boost c) BL-CSC d) BL-Luo PFC based converters. All these converters are modeled to operate a 24V 400W 3000rpm rated BLDC motor and the results are compared to determine the best efficient converter among them. For the comparative analysis MATLAB Simulink software is considered for results generation and all the comparisons are taken with respect to time.