Design Optimization and Performance Prediction of Synchronous Reluctance Motors

Finite Element (FE)-based design optimization and performance assessment are conducted to analyze and improve the operating capabilities of a series of four flux barrier Transversally Laminated Anisotropic (TLA) Synchronous Reluctance Motors (SynRMs) with various slot per pole per phase (SPP) properties and normal and cut off rotor structures. A Combined Objective Function (COF) is defined and solved to minimize the torque ripple and maximize the saliency ratio of the SynRMs while also supporting the desired developed torque. Power and torque capability, air-gap flux density, electromagnetic losses, efficiency, and power factor of the optimally designed SynRMs are evaluated to introduce a final design. Structural analysis is conducted to ensure that the final design is mechanically robust throughout its entire speed range.