Torque ripple reduction in interior permanent magnet synchronous machines using stators with odd number of slots per pole pair
Date
2010
Authors
Han, S.
Jahns, T.
Soong, W.
Guven, M.
Illindala, M.
Editors
Advisors
Journal Title
Journal ISSN
Volume Title
Type:
Journal article
Citation
IEEE Transactions on Energy Conversion, 2010; 25(1):118-127
Statement of Responsibility
Seok-Hee Han, Thomas M. Jahns, Wen L. Soong, Mustafa K. Güven and Mahesh S. Illindala
Conference Name
Abstract
This paper develops analytical principles for torque ripple reduction in interior permanent magnet (IPM) synchronous machines. The significance of slot harmonics and the benefits of stators with odd number of slots per pole pair are highlighted. Based on these valuable analytical insights, this paper proposes coordination of the selection of stators with odd number of slots per pole pair and IPM rotors with multiple layers of flux barriers in order to reduce torque ripple. The effectiveness of using stators with odd number of slots per pole pair in reducing torque ripple is validated by applying a finite-element-based Monte Carlo optimization method to four IPM machine topologies, which are combinations of two stator topologies (even or odd number of slots per pole pair) and two IPM rotor topologies (one- or two-layer). It is demonstrated that the torque ripple can be reduced to less than 5% by selecting a stator with an odd number of slots per pole pair and the IPM rotor with optimized barrier configurations, without using stator/rotor skewing or rotor pole shaping.
School/Discipline
Dissertation Note
Provenance
Description
Access Status
Rights
Copyright status unknown