Current Control For Smoothing of Torque in Single-Phase Permanent Magnet Dise Motor Using 3-D FEM

摘要

A disc-type single-phase permanent magnet motor with salient pole stator is considered. Due to a particular arrangement of the magnets on the rotor disc the motor develops the starting torque. It also is capable to produce a constant, nearly smooth torque by modifying the current waveform. To determine the required current waveform the 3D finite element model is used. To minimize the torque ripple the current is controlled. To analyze the motor performance at this condition, the field model, combined with a circuit model of the motor was applied including the inverter topology.