Results 31 to 40 of about 27,949 (355)

Influence of the amount of permanent-magnet material in fractional-slot permanent-magnet synchronous machines [PDF]

open access: yes, 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
core   +2 more sources

Minimization of torque ripple in ferrite-assisted synchronous reluctance motors by using asymmetric stator

open access: yesAIP Advances, 2018
Torque ripple is one of the important issues for ferrite assisted synchronous reluctance motors (FASRMs). In this paper, an asymmetrical stator is proposed for the FASRM to reduce its torque ripple.
Meimei Xu   +3 more
doaj   +1 more source

Optimal control of torque ripple for direct torque control system of mine hoist

open access: yesGong-kuang zidonghua, 2014
In view of problem of large torque ripple existed in low speed range of direct torque control system of mine hoist, an optimal control method of torque ripple for mine hoist was proposed.
WANG Zhen, CHEN Zhaolei, CAO Xiaodong
doaj   +1 more source

Investigation on the Torque Ripple Reduction Method of a Hybrid Electric Vehicle Motor

open access: yesEnergies, 2021
Owing to the development of electric vehicles (EVs), research and development are underway to minimize torque ripple in relation to vibration and noise in EV motors.
Hyungkwan Jang   +4 more
doaj   +1 more source

Torque ripple minimization of doubly salient permanent-magnet motors [PDF]

open access: yes, 2005
Due to the nature of salient poles in both the stator and rotor, the doubly salient permanent-magnet (DSPM) motor suffers from severe torque ripples.
Chau, KT, Cheng, M, Fan, Y, Sun, Q
core   +1 more source

The Design and Optimization of an Interior, Permanent Magnet Synchronous Machine Applied in an Electric Traction Vehicle Requiring a Low Torque Ripple

open access: yesApplied Sciences, 2019
An internal permanent magnet synchronous machine (IPMSM) was designed for heavy-load traction vehicles applied in port transportation. Based on finite element analysis (FEA), the rotor iron core topology was optimized with the most attention paid to ...
Gan Zhang   +5 more
doaj   +1 more source

Analysis of Torque Ripple of a Spoke-Type Interior Permanent Magnet Machine

open access: yesEnergies, 2020
This paper investigates the theoretical reasons behind the low torque ripple of a fractional-slot concentrated-winding (FSCW) spoke-type interior permanent-magnet (IPM) machine obtained via a genetic algorithm-based optimization. To better understand the
Guoyu Chu   +3 more
doaj   +1 more source

Torque Ripple Minimization Control Strategy in Synchronous Reluctance Machines

open access: yesIEEE Open Journal of Industry Applications, 2022
Torque smoothness is an essential requirement for high-performance motor drive applications. Synchronous reluctance machines (SyRM) have high torque ripple due to non-linear magnetic circuit and saturation.
Anant K Singh   +3 more
doaj   +1 more source

Effect of optimal torque control on rotor loss of fault-tolerant permanent-magnet brushless machines [PDF]

open access: yes, 2002
A faulted phase in a fault-tolerant permanent-magnet brushless machine can result in significant torque ripple. However, this can be minimized by using an appropriate optimal torque control strategy.
Atallah, K.   +3 more
core   +1 more source

A fractional delay variable frequency repetitive control for torque ripple reduction in PMSMs [PDF]

open access: yes, 2017
Based on the internal model principle, repetitive controller (RC) is capable to reduce periodic torque ripple by generating a compensating action that consequently need to be synchronized with the original ripple.
Formentini, Andrea   +3 more
core   +2 more sources

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