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A pole-changing flux reversal permanent magnet motor

A pole-changing flux reversal permanent magnet motor

Authors :
Yi Du
Ziwei Chen
Feng Xiao
Xiaoyong Zhu
Yi Mao
Source :
AIP Advances, Vol 14, Iss 2, Pp 025007-025007-6 (2024)
Publication Year :
2024
Publisher :
AIP Publishing LLC, 2024.

Abstract

In this paper, a pole-changing (PC) flux reversal permanent magnet (FRPM) motor is proposed for obtaining a wide speed range. According to the general air-gap field modulation theory, the permanent magnet (PM) magnetic field is modulated into a series of harmonics with different pole numbers by rotor teeth. By introducing an especial PM arrangement, two groups of working harmonics with different pole-pair numbers are generated in the proposed 12-7 PC-FRPM motor due to the modulation of rotor teeth. Based on the calculated slot pitch angles of these harmonics, two winding connections can be obtained for PC operation to achieve two operating modes. The electromagnetic performance of PC-FRPM motor before and after PC are analyzed using finite element analysis and verified by the experimental test results.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
21583226
Volume :
14
Issue :
2
Database :
Directory of Open Access Journals
Journal :
AIP Advances
Publication Type :
Academic Journal
Accession number :
edsdoj.3a8644659cd43c097b3688e187e2423
Document Type :
article
Full Text :
https://doi.org/10.1063/9.0000679