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The magnetic flux density distribution in the air-gap of single sided slotted electric machines is analyzed in the paper and the Carter's factor is computed. The finite element method (FEM) obtained results are compared with that calculated by using analytic estimation functions. The case of single sided slotted machines with large values of the slot opening to tooth pitch ratio is discussed also...
A modular stator switched reluctance motor (SRM) for fault tolerant drive systems is proposed. Owing to the particular construction of the stator there is no mutual coupling between adjacent phases. Hence, the motor can work also when a part of the coils is faulted and the faulted modules can be replaced without uncoupling the machine from the load or gearbox. The sizing particularities are presented...
In this paper a typical structure of a permanent magnet flux-switching machine (PMFSM) with 12 stator poles and 10 rotor poles is considered. The PMFSM design procedure is based on a specific analytical algorithm, which is validated by the results obtained via a two dimensions finite element method (2D-FEM). Also an optimal design procedure, based on Hooke-Jeeves method, applied to a permanent magnet...
The permanent magnet transverse flux machine (PMTFM) is characterized by power densities figures larger than the conventional electric motors and by a specific modularity. The PMTFM has usually a complicated structure with a true three dimensional (3D) pattern. In this paper, a PMTFM with a simple structure is proposed for a ship drive system and its performance are checked via a three dimensions...
Two categories of analytical models developed for switched reluctance motor (SRM) are discussed in the paper. The models are based on motor geometry data and respectively on finite element method (FEM) analysis results. For an existing and tested sample SRM the flux linkage and the torque characteristics were calculated via all considered models and the results were compared with the FEM analysis...
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