Permeance and Inductance Modelling of a Double-Stator Hybrid-Excited Flux-Switching Permanent-Magnet Machine

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Original languageEnglish
Number of pages11
Journal / PublicationIEEE Transactions on Transportation Electrification
Online published8 Jun 2020
Publication statusOnline published - 8 Jun 2020


This paper proposes the permeance and inductance modelling of a new double-stator hybrid-excited flux-switching permanent-magnet (DSHE-FSPM) machine. Firstly, based on the machine design, the DS coupling analysis is presented, which refers to the mutual influence between double stators. Actually, different coupling degree leads to different modelling methods of DS machines, which reduces the workload and increases the modelling efficiency. For DS-FSPM machines, the main affecting factors of coupling degree are the rotor configuration, PM mutual suppression and load condition. Specific influences of all the factors are summarized. Secondly, based on coupling analysis, analytical permeance magnetomotive-force (MMF) model fit for typical DS-FSPM machines is built up. Effects of hybrid excitation and flux barriers are also taken into consideration. The analytical results accommodate great agreement with simulated counterparts. Thirdly, based on the magnetic field deduction, the inductance model is built, considering leakage inductances. As a result, the analytical inductance well agrees with the simulated and measured counterparts within the calculation error of 5%. Also, the inductance mismatch experiments are carried out with the prototype, which can further verify the modelling of the proposed DSHE-FSPM machine.

Research Area(s)

  • Double-stator machine, hybrid-excited machine, permanent magnet machine, permeance, inductance