Torque quality and comparison of internal and external rotor axial flux surface-magnet disc machines

In this paper, pulsating torque components of permanent magnet machines and pulsating torque minimization techniques are discussed for axial flux surface-magnet disc-type PM machines. The pulsating torque analysis describing general instantaneous electromagnetic torque equation and torque ripple fac...

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Bibliographic Details
Published in:IEEE transactions on industrial electronics (1982) 2006-06, Vol.53 (3), p.822-830
Main Authors: Aydin, M., Surong Huang, Lipo, T.A.
Format: Article
Language:English
Subjects:
AC motors
Axial stress
Electromagnetic analysis
Finite element methods
Flux
Focusing
Forging
Magnetic analysis
Mathematical analysis
Minimization
Optimization
Permanent magnet machines
Permanent magnet motors
Power harmonic filters
Ripples
Rotors
Stators
Torque
traction motors
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Summary:In this paper, pulsating torque components of permanent magnet machines and pulsating torque minimization techniques are discussed for axial flux surface-magnet disc-type PM machines. The pulsating torque analysis describing general instantaneous electromagnetic torque equation and torque ripple factor is briefly provided in order to analyze torque ripple component. Detailed finite-element analyses focusing on the minimization of cogging and torque ripple components using several techniques are also given. A detailed comparison of the two techniques is also illustrated in this paper.
ISSN:0278-0046
1557-9948
DOI:10.1109/TIE.2006.874268