Exploration of the Torque–Density of a Triple Three– Phase Synchronous Reluctance Machine with AC and DC Stator Winding Excitations

In this paper, electromagnetic field analysis-based approach is used in investigating the torque–density of a Triple Three–Phase Synchronous Reluctance Machine (TTP–SynRM) having both AC and DC stator winding excitations for high-speed applications. The analysis results to a comprehensive modeling for a mixed pole TTP–SynRM with constraints on modulation of rotor and winding pole numbers and corresponding speeds. The evaluation has shown additive, subtractive and combination mixed-pole designs with torque and speed capabilities in each case. The performances of the designs were demonstrated using analytical results and FEA.