Since the air-gap field of flux-switching permanent magnet (FSPM) machines is difficult to regulate as it is produced by the stator-magnets alone, a type of hybrid-excited flux-switching (HEFS) machine is obtained by reducing the magnet length of an original FSPM machine and introducing a set of field windings into the saved space. In this paper, the steady-state characteristics, especially for...

The demand for electric bikes has been increasing in recent years, and so their drive, which requires a high power-to-weight ratio or power density. An axial-flux permanent magnet motor with Halbach-array is an excellent choice bike drives thanks to its known characteristics of density, reliability, efficiency. However, because machine topology not common, the manufacturing process can be chall...

Abstract The axial flux permanent-magnet synchronous motor with amorphous alloy stators has the advantages of high power density, efficiency, large starting torque. But PMSM poor performance in heat resistant and radiation. And electromagnetic loss a significant impact on in-wheel motor’s generation. To demonstrate influence winding coils PMSM, mathematical model thermal transformation was foun...

The traditional flux reversal permanent magnet (FRPM) machine has high torque ripple due to the double salient-pole structure, and effective air-gap length is increased by structure of stator tooth surface, which affects size magnetomotive force (MMF). This paper proposes an axial modular flux-reversal (AM-FRPM) with attractive capabilities. Based on magnetic field modulation theory, a method a...

Abstract: Recently, Vernier permanent magnet (VPM) machines, one special case of magnetic flux-modulated (MFM) machines, benefiting from their compact, simple construction and low-speed/ high-torque characteristics, have been receiving increasing interest. In this paper, the Vernier structure is integrated with an axial-flux PM machine to obtain the magnetic gear effect and produce an improved ...

This paper details the design and construction of a low-cost electric machine to perform efficiently as both a starter and alternator. In addition to efficiency, considerations are made with regards to safety, size, manufacturability and cost. The design for this machine is chosen to be a single-sided axial flux with surface-mount permanent magnet excitation fitted with single-layer non-overlap...

This paper deals with the design of high power – low dimensions axial-flux permanent-magnet motor intended for traction application. First, two motor configurations are analytically designed and compared using finite element calculation. Then, the configuration yielding the best performances is integrated and modelled with the whole traction chain under MATLAB/SIMULINK environment in order to d...

Hybrid excitation is a technology that combines the advantages of field windings and permanent magnets for inducing magnetic flux. This article studies benefits hybrid provides an outlook on their possible applications, such as wind power generators electric vehicle motors. Compared to magnet-based machines, gives variable flux while still using advantage portion also looks into some different ...