Small Electronically-Commutated Axial-Flux Permanent-Magnet Machines

The research work presented is about small electronically-commutated axial-flux permanent-magnet (AFPM) machines having the double-sided topology of an inner rotor with surface-mounted Nd-Fe-B magnets, sandwiched between two outer slotted stators with distributed three-phase windings. After reviewing the small double-sided AFPM machine candidate topologies for low-speed direct-drive applications, the book hinges on the size equations and the analytical electromagnetic design of the inner-rotor AFPM (AFIPM) machine topology under study. Original methods of modelling and design optimization of a small prototype AFIPM machine are then proposed with the view to reducing the airgap flux density space-harmonics and the torque ripple by rotor-PM shape modification. Extensive experimental tests are carried out on the small three-phase AFIPM machine prototype in order to validate its proper design and to check its electronic commutation and basic control technique.

Autorentext

Phd. Eng. Adrian POP is an Assistant Professor at Technical University of Cluj Napoca, Faculty of Electrical Engineering where he serves as researcher in Electrical Machines domain. He is a member of Electrical Engineering and Power Electronics Research Laboratory (L2EP), Ecole Centrale de Lille, France.