Results 11 to 20 of about 746 (206)
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 +6 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 +4 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 +3 more sources
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
Techniques for Reduction of the Cogging Torque in Claw Pole Machines with SMC Cores [PDF]
Energies, 2017 As one of the main parasitic parameters in permanent magnet (PM) synchronous machines (PMSMs), cogging torque is the main component of the torque ripple, which has always been the handicap in the high-performance, low-speed drive systems.
Chengcheng Liu +5 more
doaj +4 more sources
Energies, 2018 We herein propose a novel high-torque-density flux-switching permanent magnet machine (FSPMM) which adopted phase-group concentrated-coil (PGCC) winding and a cogging torque reduction technique. The PGCC winding was applied to increase the torque density.
Jung-Woo Kwon +3 more
doaj +2 more sources
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 +2 more sources
Cogging torque reduction by utilizing the unequal rotor slot arc method for FSPM Machines
Ain Shams Engineering JournalCogging torque is a crucial and offending problem for electric machines that consist permanent magnets. Flux switching permanent magnet (FSPM) machines have magnets embedded inside the stator coils. Due to the interaction between the stator magnetic flux
Emrah Cetin
doaj +2 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
Cogging Torque Reduction Techniques in Axial Flux Permanent Magnet Machines: A Review
EnergiesAxial flux permanent magnet machines have garnered significant attention in recent years due to their numerous advantages in various applications, including electric vehicles, wind turbines, and robotics.
Franjo Pranjić, Peter Virtič
doaj +2 more sources