Performance evaluation of brushless DC motor drive for three different types of MOSFET based DC-DC converters

The relevance of Brushless DC motors has been increasing across industries and industrial applications for a multitude of advantages. This paper concerns the implementation of the brushless DC motor in the buck-boost, Cuk and Sheppard-Taylor topologies. Duty ratio of the pulse signal sent to the power MOSFET has been varied for buck and boost operation and subsequently motor parameters across the three separate establishments have been compared. Design and simulation of the converter circuits have been done using MATLAB/Simulink. The motor parameters under discussion are stator back emf, rotor speed and electromagnetic torque. A conscious effort has been made to present the parameter values in an easily comparable manner for the three topologies. Finally, a conclusion has been drawn on the best possible topology among the three to enable the motor to function efficiently and help us get desirable results when the motor is in operation.