PSFB Converter Based Scheme for Permanent Magnet Brushless DC Motor Drive

The easy controllability of the Permanent Magnet brushless DC motor (PMBLDCM) drive with hall effect sensors makes it an excellent choice for variable speed operation. With trapezoidal control, it is fairly easy and convenient to control the PMBLDCM drive. One way of controlling the drive’s speed is controlling the input voltage to the DC-link which, in turn, feeds the three phase Voltage Source Inverter (VSI). This paper introduces a scheme in which a Phase Shift Full Bridge (PSFB) DC-DC converter is employed for controlling a 1 kW, 500V, 3000 rpm PMBLDCM drive. The simulations are performed in the MATLAB/Simulink environment. The designing, outcomes and assessments are presented in this paper.