IEEE Access, 2019 Brushless dc motors (BLDCMs) exhibit relatively large torque ripple due to the current pulsation during the commutation process. In this paper, first, the production mechanism of the commutation torque ripple is analyzed in detail, where the diode ...
Kai Liu, Zhiqiang Zhou, Wei Hua
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Establishing the Relative Merits of Interior and Spoke-Type Permanent-Magnet Machines With Ferrite or NdFeB Through Systematic Design Optimization [PDF]
, 2015 In this paper, a multiobjective design optimization method combining design-of-experiments techniques and differential-evolution algorithms is presented.
Demerdash, Nabeel +3 more
core +2 more sources
Multimodal Optimization Algorithm for Torque Ripple Reduction in Synchronous Reluctance Motors
IEEE Access, 2022 An accurate analytical model is adopted to estimate the torque ripple of a synchronous reluctance motor (SynRM). Desired behavior of the torque ripple functionin this motor is obtained by changing the angles of one and two flux barriers per pole (FBs) in
Moein Farhadian +2 more
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Influence of the amount of permanent-magnet material in fractional-slot permanent-magnet synchronous machines [PDF]
, 2014 The efficiency of permanent-magnet (PM) synchronous machines with outer rotor and concentrated windings is investigated as a function of the mass of magnets used, keeping the power, volume, and mechanical air-gap thickness constant. In order to be useful
Sergeant, Peter, Van den Bossche, Alex
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Rotation and Neoclassical Ripple Transport in ITER
, 2017 Neoclassical transport in the presence of non-axisymmetric magnetic fields causes a toroidal torque known as neoclassical toroidal viscosity (NTV). The toroidal symmetry of ITER will be broken by the finite number of toroidal field coils and by test ...
Dorland, W. +5 more
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IEEE Access, 2020 This paper proposes an improved PWM-OFF-PWM of the brushless DC motor under braking condition which can reduce commutation torque ripple. Compared with other brake modulation methods, PWM-OFF-PWM can restrain non-commutation torque ripple attributed to ...
Qixun Zhou +4 more
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Torque Ripple Minimization in a Switched Reluctance Drive by Neuro-Fuzzy Compensation
, 2000 Simple power electronic drive circuit and fault tolerance of converter are specific advantages of SRM drives, but excessive torque ripple has limited its use to special applications.
Branco, P. J. Costa +4 more
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Reduction of Unipolar Leakage Flux and Torque Ripple in Consequent-pole PM Vernier Machine
CES Transactions on Electrical Machines and Systems, 2023 This paper proposes a new consequent-pole permanent magnet vernier machine (CPMVM), which can be regarded as a combination of two conventional CPMVM with opposite polarities.
Liang Xu +3 more
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Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle +4 more
wiley +1 more source
Design of Permanent Magnet-Assisted Synchronous Reluctance Motor with Low Torque Ripple
World Electric Vehicle Journal, 2023 Permanent magnet-assisted synchronous reluctance motors (PMSRMs) have been widely used in household appliances, national defense and the military, due to their advantages of low cost and high efficiency.
Xinmin Li +4 more
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