Optimization design and performance analysis of a novel direct-drive pmsm with toroidal windings after shifting the magnetic poles

Caixia Gao, Mengzhen Gao, Jikai Si, Haichao Feng, Wenping Cao

Research output: Chapter in Book/Published conference outputConference publication

Abstract

To improve the performance of the direct-drive PMSM with toroidal windings (NTWDDPMSM) after shifting the magnetic poles (SMP), some design parameters such as the pole arc coefficient, permanent magnet magnetization height, air-gap length and slot opening width are selected as optimization variables, and the Taguchi method is adopted to improve torque and reduce torque fluctuations as optimization objectives, increase the efficiency and decrease the total harmonic distortion (THD) of electromotive force (EFM) as constraints. The experimental orthogonal table is established according to the number of the optimization variables and their levels, and finite-element analyses are taken for the orthogonal table. The finite-element results are analyzed, and the best optimization scheme is obtained. Compared with the NTWDDPMSM after SMP, it can be concluded that the torque and efficiency have improved by 10.63% and 1.3%, respectively. Moreover, the torque ripple and the THD of back EMF have reduced by 29.09% and 4.01%.

Original languageEnglish
Title of host publication2019 IEEE Vehicle Power and Propulsion Conference, VPPC 2019 - Proceedings
PublisherIEEE
ISBN (Electronic)9781728112497
ISBN (Print)978-1-7281-1250-3
DOIs
Publication statusPublished - 9 Jan 2020
Event2019 IEEE Vehicle Power and Propulsion Conference, VPPC 2019 - Hanoi, Viet Nam
Duration: 14 Oct 201917 Oct 2019

Publication series

Name2019 IEEE Vehicle Power and Propulsion Conference, VPPC 2019 - Proceedings

Conference

Conference2019 IEEE Vehicle Power and Propulsion Conference, VPPC 2019
CountryViet Nam
CityHanoi
Period14/10/1917/10/19

Keywords

  • Finite-element analyses
  • Optimal design
  • Performance
  • Taguchi method

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