A flux-intensifying permanent magnet synchronous motor and its magnetic equivalent circuit model

In this paper, a flux-intensifying permanent magnet synchronous motor (FIPMSM) and its magnetic equivalent circuit (MEC) model are proposed. First, the structure of the FIPMSM is introduced. Second, the dynamic MEC model of the FIPMSM is established, and the mesh analysis formulation algorithm is used to solve the MEC model. For complex structures such as the petal-shaped rotor and non-uniform air gap, the equivalent reluctance calculation method is presented. Then, the MEC model is used to rapidly estimate the flux linkage, back-electromotive force (EMF) and electromagnetic torque. Finally, the finite element model of the FIPMSM is established. A prototype is manufactured and tested. The MEC results are verified by the finite element analysis (FEA) method and the prototype experiments. (C) 2022 The Author(s). Published by Elsevier Ltd.

Automated summary

This paper proposes a flux-intensifying permanent magnet synchronous motor (FIPMSM) and its magnetic equivalent circuit (MEC) model. The dynamic MEC model is established and an equivalent reluctance calculation method is used for complex structures. The accuracy of the MEC model is verified through finite element analysis and experiments.