Results 1 to 10 of about 3,184 (224)
Cogging Torque Reduction in Brushless Motors by a Nonlinear Control Technique [PDF]
Energies, 2019 This work addresses the problem of mitigating the effects of the cogging torque in permanent magnet synchronous motors, particularly brushless motors, which is a main issue in precision electric drive applications.
Pierpaolo Dini, Sergio Saponara
doaj +4 more sources
The Effects of Cogging Torque Reduction in Axial Flux Machines. [PDF]
Micromachines (Basel), 2021 An axial flux permanent magnet single-rotor generator has good potential in various applications that require high efficiency, prolonged service life, as well as low mass and dimensions. However, the effect of cogging torque diminishes generator efficiency and flexibility of functionality.
Mengesha S +3 more
europepmc +5 more sources
Reduction of cogging torque in interior-magnet brushless machines [PDF]
IEEE Transactions on Magnetics, 2003 An investigation into the cogging torque in a four-pole interior-magnet brushless machines having either a six-slot stator and a short-pitched nonoverlapping winding or a 12-slot stator and a full-pitched overlapping winding is described. It is shown by finite-element analyses and measurements that, by appropriately defining the pole-arc to pole-pitch ...
Zhu, Z.Q. +3 more
openaire +5 more sources
Impact of Selected Methods of Cogging Torque Reduction in Multipolar Permanent-Magnet Machines
Energies, 2020 This paper focuses on the matter of cogging torque reduction by combining various methods of cogging torque minimization. Due to the high costs of prototype construction, cogging torque is minimized during the design phase by using numerical methods ...
Zbigniew Goryca +5 more
doaj +3 more sources
A Reduction Method of Cogging Torque for Magnetic Gears [PDF]
Iranian Journal of Electrical and Electronic Engineering, 2023 Nowadays, magnetic gears (MGs) have become an alternative choice for mechanical gears because of their low maintenance, improved durability, indirect contact between inner and outer rotors, no lubrication, and high efficiency.
M. K. Rashid, A. M. Mohammed
doaj +2 more sources
Rotor skew pattern design and optimisation for cogging torque reduction
IET Electrical Systems in Transportation, 2016 This study examines the effects of different rotor skew patterns on the cogging torque, the excitation torque ripple, the average torque, and the axial force in an interior permanent magnet synchronous motor. A genetic algorithm is used to minimise the cogging torque for different skew patterns based on analytical functions. The optimal design obtained
Berker Bilgin, Yinye Yang, Anand Sathyan
exaly +2 more sources
Energies, 2020 This article presents an effective algorithm to reduce acoustic noise, vibrations and torque ripple caused by cogging torque in three-phase Permanent Magnet (PM) motors under Field Oriented Control (FOC) operation.
Martin Sumega +2 more
doaj +3 more sources
Methods for Reducing Cogging Force in Permanent Magnet Machines: A Review
Energies, 2022 Permanent magnet (PM) machines inevitably suffer from cogging force, which does not contribute to the average output torque (force) but contributes as a type of torque (force) ripple. This paper provides an overview of the cogging force reduction methods
Wenjuan Hao +4 more
doaj +1 more source
Mathematics, 2023 The cogging torque reduction methods in permanent magnet (PM) machines are more or less FEA trial and error-based and cause undesirable side effects, such as distorted back EMF, new harmonic components, and structure asymmetry.
Linwei Wang +3 more
doaj +1 more source
Cogging Torque Reduction in Permanent Magnet Machines [PDF]
IEEE Transactions on Industry Applications, 2006 This paper examines two methods - magnet shifting and optimizing the magnet pole arc - for reducing cogging torque in permanent magnet machines. The methods were applied to existing machine designs and their performance was calculated using finite-element analysis (FEA).
Dosiek, L., Pillay, Pragasen
openaire +2 more sources