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The Effects of Cogging Torque Reduction in Axial Flux Machines [PDF]

open access: yesMicromachines, 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.
Samuel Mengesha   +3 more
doaj   +5 more sources

Reduction of Cogging Torque in Dual Rotor Permanent Magnet Generator for Direct Coupled Wind Energy Systems [PDF]

open access: yesThe Scientific World Journal, 2014
In wind energy systems employing permanent magnet generator, there is an imperative need to reduce the cogging torque for smooth and reliable cut in operation.
Sivachandran Paulsamy
doaj   +2 more sources

Impact of Selected Methods of Cogging Torque Reduction in Multipolar Permanent-Magnet Machines

open access: yesEnergies, 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 ...
Sebastian Różowicz, Antoni Różowicz
exaly   +3 more sources

A Calculation Method for the On-Load Cogging Torque of Permanent Magnet Synchronous Machine

open access: yesIEEE Access, 2019
This paper presents a new method to calculate the cogging torque of the permanent magnet synchronous machine under load condition. Combined with the mathematical expression of the cogging torque, it is found that the cogging torque will be influenced by ...
Weiye Wang, Xin Qiu, Jianfei Yang
exaly   +3 more sources

Current Harmonics Controller for Reduction of Acoustic Noise, Vibrations and Torque Ripple Caused by Cogging Torque in PM Motors under FOC Operation

open access: yesEnergies, 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.
Pavol Rafajdus
exaly   +3 more sources

Minimization of Cogging Torque for V-Type IPMSM by the Asymmetric Auxiliary Slots on the Rotor

open access: yesIEEE Access, 2022
The interaction between the permanent magnets and the armature teeth of the PMSM generates cogging torque. It causes vibration and noise. Therefore, this paper establishes the analytical formula of the cogging torque of the motor with auxiliary slots on ...
Xiaobo Wan   +4 more
doaj   +1 more source

Cogging Torque Minimization of Surface-Mounted Permanent Magnet Synchronous Motor Based on RSM and NSGA-II

open access: yesActuators, 2022
A high-end permanent magnet (PM) synchronous motor’s cogging torque is a significant performance measure (PMSM). During the running of the motor, excessive cogging torque will amplify noise and vibration.
Yinquan Yu   +7 more
doaj   +1 more source

A novel cogging torque measurement method for multi slot/pole permanent magnet motor

open access: yesIET Electric Power Applications, 2023
The adverse effect on speed ripple and vibration makes it necessary to evaluate the cogging torque. Due to the tolerance of stator and rotor stacks as well as nonuniform magnetization of permanent magnet, the amplitude of cogging torque is unequal in ...
Wanwan Zhu   +5 more
doaj   +1 more source

Cogging torque in slotless permanent magnet machines [PDF]

open access: yesJournal of Electrical Engineering, 2020
Abstract Slotless permanent magnet machines theoretically do not produce any cogging torque, provided the stator inner surface reluctance remains unchanged. However, a cogging torque may occur due to a change in the electromagnetic design following material cost reduction in the manufacturing process.
Mario Vukotić   +3 more
openaire   +1 more source

A Reduction Method of Cogging Torque for Magnetic Gears [PDF]

open access: yesIranian 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  

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