PMSM Control Fundamentals using Ansys Maxwell Software
This case study compares a surface mounted PMSM (SPM) and an interior PMSM (IPM) that share the same stator, windings, materials, and ratings to isolate the effect of rotor saliency on control. The analysis is performed in Ansys Maxwell® advanced electromagnetic field solver. The dq-axis framework is introduced and applied to determine the maximum torque operating point. A current-angle sweep is performed at a fixed current magnitude and nominal speed to locate the maximum torque operating point. Results show the SPM peaking near zero flux axis current, while the salient IPM requires a more negative d-axis current component and therefore a larger current angle.
Learning Outcomes
- Compare SPM vs IPM. Study saliency’s effect on optimal current and torque.
- Understand dq-axis analysis.
- Demonstrate current angle sweeps in Ansys Maxwell to identify maximum torque operating points.
Applicable Courses
- Electrical Machines
- Power Electronics
- Control Theory
Related Resources
Electrical Machines Fundamentals: Electromotive Force Analysis using Ansys Maxwell Software
