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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Published inEnergies (Basel) Vol. 15; no. 14; p. 4956
Main Authors Caruso, Massimo, Di Tommaso, Antonino, Miceli, Rosario, Viola, Fabio
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.07.2022
Subjects
Cogging
cogging torque
Design techniques
FEM analysis
Genetic algorithms
Geometry
harmonic analysis
interior permanent magnet synchronous motors
Lamination
Optimization
Permanent magnets
rotor lamination
Rotors
Stators
Synchronous machines
Synchronous motors
Topology
Torque
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Abstract 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.
AbstractList 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.
Author Di Tommaso, Antonino
Viola, Fabio
Miceli, Rosario
Caruso, Massimo
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  surname: Di Tommaso
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  givenname: Rosario
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  surname: Miceli
  fullname: Miceli, Rosario
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  givenname: Fabio
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  surname: Viola
  fullname: Viola, Fabio
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Snippet This article describes a simple cogging torque minimization procedure for interior permanent magnet synchronous machines (IPMSMs), consisting of a progressive...
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StartPage 4956
SubjectTerms Cogging
cogging torque
Design techniques
FEM analysis
Genetic algorithms
Geometry
harmonic analysis
interior permanent magnet synchronous motors
Lamination
Optimization
Permanent magnets
rotor lamination
Rotors
Stators
Synchronous machines
Synchronous motors
Topology
Torque
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Title A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry
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https://doaj.org/article/3040cc6c0f5048f0baaf2034e141983e
Volume 15
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