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This paper presents the design and a novel rotor shape of a 3 kW, 25000 rpm permanent magnet assisted synchronous reluctance motor (PMa-SynRM) based on a low speed benchmark model. Multiphase PMa-SynRM can operate with low torque ripple, reduced magnet volume and extended field weakening region which makes it a potential candidate for high speed motor design. However, the challenge of high speed PMa-SynRM...
This paper presents the optimization of center post and rib length of a high speed permanent magnet assisted synchronous reluctance motor (PMa-SynRM) through the modeling of performance parameters. With low torque ripple, wider field weakening region and cost effective structure, PMa-SynRM can be a deserving candidate for high speed machine design. One of the most crucial factors for PMa-SynRM operating...
This paper discusses the effect of uneven axial magnet temperature of permanent magnet assisted synchronous reluctance motor (PMa-SynRM) on unbalanced magnetic pull (UMP). The loss generated in stator and rotor contribute to temperature rise in the motor. Commonly, radial direction thermal analysis has been done while assuming constant temperature in axial direction of a machine. However, the uneven...
This paper presents a study on the thermal effects of a five-phase permanent magnet assisted synchronous reluctance motor (PMa-SynRM) under various fault conditions. The major advantage of a five-phase system is the additional number of phases which make it suitable for fault tolerant control in critical service applications. However, under the fault tolerant control (FTC), to maintain maximum torque,...
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