Variable speed, permanent magnet synchronous machines with hybrid excitation have attracted much attention due to their flux-control potential. In this paper, a design of axial flux iron poles in the rotor and an additional electrically controlled source fixed on stator is presented. This paper shows results pertaining air-gap control, electromagnetic losses, torque, back emf efficiency maps ob...

Abstract—This paper proposed an estimation approach of temperature rise in stator winding and rotor magnet of a surfaced-mounted permanent magnet (PM) AC motor. By using the 3rd-order extended Kalman filter (EKF) algorithm in rotating reference frame, stator winding resistance and rotor PM flux-linkage can be estimated independently. After comparing the estimation results of resistance and flux...

Magnetic gears have beneficial features such as low vibration and maintenance-free owing to no mechanical contacts. Among the several types of magnetic gears, a flux-modulated type gear has higher torque density than other types. Thus, it is expected be put into practical use. Previous studies verified that an interior permanent magnet (IPM) structure rotor can reduce eddy current loss in magne...

Due to its particular configuration, the Consequent Pole Permanent Magnet (CPPM) machine allows one to easily control the airgap flux in a wide range so that the power capability of the machine is increased over a wide speed range. Two components of the flux, one almost constantcoming from the permanent magnet located on the rotor surface of the machine, and the other –variablecoming from a fie...

In this article, three dual-stator axial field flux-switching permanent magnet (DS-AFFSPM) topologies are selected, designed, and analysed in order to determine the most effective structure electric vehicle (EV) application based on torque density, power efficiency. Accordingly, introduced thoroughly compared same condition. The results show that, high-power high-torque high-efficiency, of inte...

Flywheel energy storage systems are considered as the grid integration of renewable sources due to their inherent advantages such fast response, long cycle life and flexibility in providing auxiliary services grid, frequency regulation, voltage support. The article focuses on design controller, then conducts processor-in-the-loop (PIL) simulation dynamics part using axial flux permanent magnet ...

A bearingless flux-switching permanent magnet memory machine (BFSPMMM) is proposed, which demonstrates the advantages of good suspension performance and wide-ranging speed regulation. The bias magnetic field radial force generated by motor provided magnet, can flexibly decide whether to adopt a single-phase or two-phase mode conduction according needs levitation in X- Y-directions, so as ensure...