Advanced BLDC machine drive with minimum torque ripple and maximum power

In this paper, the advanced control methods to minimise torque ripple and to maximise power density of a brushless DC motor/generator system. A simple and straightforward torque pulsation control method with copper loss minimisation for BLDC machines is presented first. Then, an optimal power control to maximise power density and minimise machine size and weight for BLDC machines is explained for generation modes. Overall, the proposed approaches can improve the performance of a BLDC motor/generator system.

Keywords: BLDC motors, BLDC generators, BLDC machine drives, torque ripple, brushless DC motors, brushless DC generators, advanced control, power density, torque pulsation control, copper loss minimisation, optimal control