A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry

This article describes a simple cogging torque minimization procedure for interior permanent magnet synchronous machines (IPMSMs), consisting of a progressive modification of the rotor lamination geometry. This procedure can be generalized for the main topologies of PMSM, independently of the number...

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Main Authors: Massimo Caruso, Antonino Oscar Di Tommaso, Rosario Miceli, Fabio Viola
Format: Article
Language:English
Published: MDPI AG 2022-07-01
Series:Energies
Subjects:
Online Access:https://www.mdpi.com/1996-1073/15/14/4956
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author Massimo Caruso
Antonino Oscar Di Tommaso
Rosario Miceli
Fabio Viola
author_facet Massimo Caruso
Antonino Oscar Di Tommaso
Rosario Miceli
Fabio Viola
author_sort Massimo Caruso
collection DOAJ
description This article describes a simple cogging torque minimization procedure for interior permanent magnet synchronous machines (IPMSMs), consisting of a progressive modification of the rotor lamination geometry. This procedure can be generalized for the main topologies of PMSM, independently of the number of stator slots or the location of the permanent magnets. For this purpose, a basic IPMSM structure is analyzed by means of the FEM (finite element method) approach, and then, several other IPMSM geometries, obtained by adequately modifying the rotor lamination geometry of the basic IPMSM model without changing its stator configuration, are proposed and discussed. The trends of the cogging torque generated by each model are computed and compared. From this comparison, it is demonstrated that, by simply acting on the shape of the rotor lamination and by choosing the optimized pattern, the cogging torque components can be theoretically canceled.
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spelling doaj.art-3040cc6c0f5048f0baaf2034e141983e2023-11-30T23:06:42ZengMDPI AGEnergies1996-10732022-07-011514495610.3390/en15144956A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination GeometryMassimo Caruso0Antonino Oscar Di Tommaso1Rosario Miceli2Fabio Viola3Department of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, ItalyDepartment of Engineering, University of Palermo, Viale delle Scienze, Building nr. 9, 90128 Palermo, ItalyThis article describes a simple cogging torque minimization procedure for interior permanent magnet synchronous machines (IPMSMs), consisting of a progressive modification of the rotor lamination geometry. This procedure can be generalized for the main topologies of PMSM, independently of the number of stator slots or the location of the permanent magnets. For this purpose, a basic IPMSM structure is analyzed by means of the FEM (finite element method) approach, and then, several other IPMSM geometries, obtained by adequately modifying the rotor lamination geometry of the basic IPMSM model without changing its stator configuration, are proposed and discussed. The trends of the cogging torque generated by each model are computed and compared. From this comparison, it is demonstrated that, by simply acting on the shape of the rotor lamination and by choosing the optimized pattern, the cogging torque components can be theoretically canceled.https://www.mdpi.com/1996-1073/15/14/4956cogging torqueinterior permanent magnet synchronous motorspermanent magnetsharmonic analysisFEM analysisrotor lamination
spellingShingle Massimo Caruso
Antonino Oscar Di Tommaso
Rosario Miceli
Fabio Viola
A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry
Energies
cogging torque
interior permanent magnet synchronous motors
permanent magnets
harmonic analysis
FEM analysis
rotor lamination
title A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry
title_full A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry
title_fullStr A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry
title_full_unstemmed A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry
title_short A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry
title_sort cogging torque minimization procedure for interior permanent magnet synchronous motors based on a progressive modification of the rotor lamination geometry
topic cogging torque
interior permanent magnet synchronous motors
permanent magnets
harmonic analysis
FEM analysis
rotor lamination
url https://www.mdpi.com/1996-1073/15/14/4956
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