Results 21 to 30 of about 27,076 (217)
Optimal Design of a Brushless DC Motor Aiming at Decreasing Cogging Torque [PDF]
One of the important issues in designing high-performance brushless direct current (BLDC) motors is reducing the cogging torque since it results in mechanical vibration, audible noises, and torque ripples, which adversely impact the performance of the ...
Mina Salarian +2 more
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Cogging Torque Reduction in Permanent Magnet Machines [PDF]
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
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Cogging torque is a critical dilemma in Permanent Magnet Brushless DC (PMBLDC) motors. In medium-low power PMBLDC motors, redundant vibrations and forbidding noises arise as a result of the harmonic magnetic forces created by cogging torque.
T. A. Anuja, M. Arun Noyal Doss
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Optimization of PM Segments Shift Angles for Minimizing the Cogging Torque of YASA-AFPM Machines Using Response Surface Methodology [PDF]
Mitigating the cogging torque is an important issue in designing the YASA machines. The main aim of the paper is to optimize an efficient technique to mitigate the cogging torque of YASA machines.
S.J. Arand
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Reduction of Cogging Torque and EMF Harmonics in Modulated Pole Machines [PDF]
This paper discusses a method for reducing cogging torque and harmonic content of back-electromotive force (EMF) waveforms in modulated pole machines (MPMs). Tooth pitching is applied to a separate phase MPM in order to reduce the most prominent harmonics present in a three-phase MPM's cogging torque.
Washington JG, Atkinson GJ, Baker NJ
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Axial flux permanent magnet machine (AFPMM) provides high torque characteristics at low speeds without any mechanical gears. AFPMMs have numerous applications in wind energy, electric cars, and direct drive elevator applications.
Mirza Aakif Baig +5 more
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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
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Permanent magnet synchronous motor (PMSM) shows the great potential for use in direct drive system because of its excellent low‐speed direct‐drive capability.
Yongda Song +4 more
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This paper suggests a method to improve the performances of the Dual Stator Axial Flux Spoke-type Permanent Magnet (DSAFSPM) machines with phase group concentrated coil (PGCC) windings, by incorporating continuous and discrete step-skewing along with a ...
Muhammad Ramiz Zakir +5 more
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Cogging Torque Reduction Based on a New Pre-Slot Technique for a Small Wind Generator
Cogging torque is a pulsating, parasitic, and undesired torque ripple intrinsic of the design of a permanent magnet synchronous generator (PMSG), which should be minimized due to its adverse effects: vibration and noise. In addition, as aerodynamic power
Miguel García-Gracia +3 more
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