Commutation Torque Ripple Minimization for Permanent Magnet Synchronous Machines with Hall Effect Po - Energy Conversion, IEEE Transactions on
نویسنده
چکیده
A permanent magnet synchronous motor (PMSM) with sinusoidal flux distribution is commonly coininutated using discrete rotor position feedback from Hall sensors. A commonly used stator current excitation strategy used in such a system is a six-step current waveform. Application of sinusoidal current waveforms is shown to produce smooth torque in the PMSM. This paper shows how a pseudo-sensorless rotor position estimator may be used with Hall sensors to provide sinusoidal current excitation in place of sixstep currents to reduce the torque ripple associated with the sixstep strategy. Performance evaluation of the rotor position estimator in a PMSM drive is provided through simulation.
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