Phase Shift Technique to Improve Torque of Synchronous Reluctance Machines With Dual M -Phase Windings

This article proposes a torque improvement method for dual m-phase synchronous reluctance machines by phase shift technique. The emphasis is put on the relationship of d–q axis inductance harmonics and phase shifts. First, all feasible phase shifts for various slot/pole combinations are discussed in general. Second, the influences of phase shift o...