Results 21 to 30 of about 24,219 (307)

Torque Ripple Investigation in Squirrel Cage Induction Machines [PDF]

2019 IEEE International Electric Machines & Drives Conference (IEMDC), 2019
Low torque ripple of electrical machines is an important requirement for many different applications. The causes of torque fluctuations in squirrel cage asynchronous induction motors might be a challenging task due to the complex phenomena raised by the whole set of rotor bars.
A. Marfoli, G. Sala, PAPINI, LUCA, P. Bolognesi, C. Gerada   +4 more
openaire   +3 more sources

High-Torque-Density IPMSM Rotor Pole Geometry Adjustment for Smooth Torque

IEEE Access, 2019
High-torque-density electrical machines applied to traction operate at a varying torque and speed, and therefore, when minimizing the torque ripple, a wide variety of possible loads must be considered.
Ilya Petrov, Pia Lindh, Markku Niemela, Eero Scherman, Juha Pyrhonen   +4 more
doaj   +1 more source

Torque Ripple Minimization of a Five-Phase Induction Motor Under Open-Phase Faults Using Symmetrical Components

IEEE Access, 2020
In order to minimize the torque ripple of five-phase induction motor under open-phase faults, the conventional strategy makes the stator current space vectors to move along the circular anticlockwise trajectories. However, the torque ripple is suppressed
Shan He, Xin Sui, Zijian Liu, Min Kang, Dao Zhou, Frede Blaabjerg   +5 more
doaj   +1 more source

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

, 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

A simple overlap angle control strategy for reducing commutation torque ripple in a brushless DC motor drive

Engineering Science and Technology, an International Journal, 2017
A commutation torque ripple is generated in a brushless DC motor due to a finite time taken for current transfer between outgoing phase and incoming phase due to the phase inductance.
Chetan K. Lad, R Chudamani
doaj   +1 more source

A Novel Step Current Excitation Control Method to Reduce the Torque Ripple of Outer-Rotor Switched Reluctance Motors

Energies, 2022
Featured in low-speed and high-torque operation, outer-rotor switched reluctance motors (OSRMs) have the potential to be widely deployed in low-speed commuter and logistics vehicle applications.
Jieyun Wang, Wei Jiang, Shuren Wang, Jingying Lu, Barry W. Williams, Qianlong Wang   +5 more
doaj   +1 more source

Improving the torque generation in self-sensing BLDC drives by shaping the current waveform [PDF]

, 2016
Brushless DC drives are widely used in different fields of application because of their high efficiency and power density. Torque ripple can be considered one of the drawbacks of these drives.
Darba, Araz, De Belie, Frederik, Manzolini, Virginia   +2 more
core   +1 more source

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

AIP 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, Guohai Liu, Wenxiang Zhao, Nazir Aamir   +3 more
doaj   +1 more source

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

Gong-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

Optimal torque control of fault-tolerant permanent magnet brushloss machines [PDF]

, 2003
Describes a novel optimal torque control strategy for fault-tolerant permanent magnet brushless ac drives operating in both constant torque and constant power modes.
Atallah, K., Howe, D., Wang, J.B.
core   +1 more source