Analytical Modeling of Airgap Fields in Double Magnetic Salient Reluctance Machines with Tangential Field Consideration

The airgap magnetic field is the most crucial performance for the design and optimization of double magnetic salient reluctance machines (DMSRMs), including mutually switched reluctance machines and switched reluctance motors. However, the existing literatures are limited to the prediction of radial component of the airgap magnetic field, the tangential component is neglected. To address the issue, this paper proposes a universal analytical model of the airgap field for DMSRMs. A simple analytical expression for the airgap field of DMSRMs is derived and verified by finite-element (FE) and experiment, which gives more insight into the radial and tangential airgap field for guiding further design.