Time-stepping finite element analysis of a brushless DC motor with the PWM speed control

In this paper, a new design solution for the brushless DC motor, in which a high-pressure vane pump can be built, is presented. Then, the developed field-circuit model of the system consisting of a single phase AC network, a converter, and a PM BLDC motor and PWM speed control method is discussed. Finally, waveforms of currents, voltages, torque, rotor speed, stator iron losses, winding losses and summary magnets and rotor yoke losses computed by the developed field-circuit model are shown.