An Improved Quick Design for Axial Flux Permanent Magnet Synchronous Machine

In order to simplify the 3D magnetic circuit Axial flux permanent magnet synchronous machine (AFPMSM) with better Accuracy, the paper proposes an improved equivalent 2D simulation model for the quick design of AFPMSM. Firstly, the generation principle of electromagnetic torque was deduced. Secondly, an equivalent 2D radial flux permanent magnet synchronous machine (RFPMSM) model was presented for AFPMSM with the single stator and single rotor, and then the equivalent of the 2D RFPMSM model was proposed for AFPMSM with the single stator and double rotors. Thirdly, an improved 2D RFPMSM plus model with double air gaps was proposed, which was time-saving and had much more accuracy. based on the comparison and analysis of the calculation results of the equivalent 2D model, the improved equivalent 2D model, as well as the 3D model and the prototype actual testing, it is proven that the improved 2D equivalent model has high simulation Accuracy and quick calculation speed. the improved equivalent 2D model proposed in this paper can quickly design the AFPMSM with a 3D complex magnetic circuit and can get better Accuracy. which provides a simplified direction for AFPMSM and lays a solid foundation for AFPMSM.