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Axial Flux Permanent Magnet (AFPM) machines present a lot of advantages over their conventional counterparts. They are being developed for various applications ranging from consumer electronics to more electric aircrafts [1]. An AFPM machine employing Halbach array offers a number of attractive features over a standard AFPM machine. In this paper both machine topologies are studied comparatively and...
Permanent magnet (PM) linear machines have been utilized in various applications due to their high force density, high efficiency and simple structure. In this study, the electromagnetic performances of three PM tubular machines, i.e. partitioned stator surface mounted permanent magnet (PS-SPM), partitioned stator interior permanent magnet (PS-IPM) and switched flux permanent magnet (SFPM) tubular...
Based on the conventional hybrid excitation switched flux permanent magnet (HE-SFPM) machines, this paper proposes a novel HE-SFPM machine with hybrid magnets, e.g. Ferrite + NdFeB. By changing the magnet composition, e.g. changing the Ferrite and NdFeB quantities, different machine performance can be achieved. The frozen permeability method is used to identify the individual contribution of magnets...
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