7
Permanent Magnet Synchronous Motor
Topics Discussed
- ❖ Construction
- ❖ Torque and EMF Equation
- ❖ Phasor Diagram
- ❖ Speed Torque Characteristics
- ❖ Vector Control
7.1 Introduction
Permanent magnet synchronous motors (PMSM) are a class of permanent magnet motors, uniquely characterized by the presence of uniform magnetization (providing a sinusoidal flux waveform), distributed winding with increased number of slots, reduced torque ripple during commutation, when compared to brushless DC (BLDC) motor. Also, it is more of an AC motor, since it has the performance capability of a conventional synchronous motor without the use of field winding in rotor (instead by use of permanent magnets). This motor requires an electronic commutator (three-phase ...
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