2022
DOI: 10.3390/en15144956
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A Cogging Torque Minimization Procedure for Interior Permanent Magnet Synchronous Motors Based on a Progressive Modification of the Rotor Lamination Geometry

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, obtain… Show more

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Cited by 9 publications
(11 citation statements)
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“…As both κ and λ are prime numbers, the sin(πκn/λ) term is non-zero, while the sin(πκn) term is zero. Therefore, (13), or its derived (17) becomes zero when the ratio of n/λ is a non-integer.…”
Section: Screening For the Right Harmonic Orders To Cancelmentioning
confidence: 99%
See 1 more Smart Citation
“…As both κ and λ are prime numbers, the sin(πκn/λ) term is non-zero, while the sin(πκn) term is zero. Therefore, (13), or its derived (17) becomes zero when the ratio of n/λ is a non-integer.…”
Section: Screening For the Right Harmonic Orders To Cancelmentioning
confidence: 99%
“…The first category is rotor-side optimization. Caruso et al [13,14] proposed a simple cogging torque minimization procedure for IPM machines by changing the rotor lamination geometry. The proposed method was essentially similar to the PM-chamfering method in SPM machines, and the main idea of both was to reduce cogging torque by changing the air gap permeance.…”
Section: Introductionmentioning
confidence: 99%
“…As expressed in Equation ( 4), the torque ripple increases as the range of torque fluctuation increases [1]. There are two causes of such large torque amplitudes: the input current and the mechanical structure of the motor [4,5]. First, the torque follows the peak value of the current, and the ripple frequency increases with the number of phases and rotating speed.…”
Section: Features Of Concentrated Winding V-ipmsm For High Speedmentioning
confidence: 99%
“…First, the torque follows the peak value of the current, and the ripple frequency increases with the number of phases and rotating speed. Ripple with respect to the mechanical structure is a matter of geometry [4,5]. Ripple occurs due to the structure of the electric motor, which has slots in the stator where the windings are wound.…”
Section: Features Of Concentrated Winding V-ipmsm For High Speedmentioning
confidence: 99%
See 1 more Smart Citation