Performance evaluation of fractional-slot tubular permanent magnet machines with low space harmonics

Archives of Electrical Engineering

Jiabin Wang¹ 

关键词: Linear machines;    permanent magnet machines;   

DOI  :  10.1515/aee-2015-0049

来源: Versita

【 摘 要 】

This paper evaluates the perforamnce of fractional-slot per pole winding configurations for tubular permanent magnet (PM) machines that can effectively eliminate the most undesirable space harmonics in a simple and cost-effective manner. The benefits of the proposed machine topology winding configurations are illustrated through comparison with 9-slot, 10-pole tubular PM machine developed for a free piston energy converter under the same specification and volumetric constraints. It has been shown that the proposed machine topology results in more than 7 times reduction in the eddy current loss in the mover magnets and supporting tube, and hence avoids potential problem of excessive mover temperature and risk of demagnetization.

【 授权许可】

Unknown