Results 181 to 190 of about 3,446,014 (205)

Cogging Torque Reduction of Hybrid Excitation Flux Switching Motor

2015 Fifth International Conference on Instrumentation and Measurement, Computer, Communication and Control (IMCCC), 2015
This paper analyzes the cogging torque mechanism of the hybrid excitation flux switching motor. The finite element analysis (FEA) is used to study different cogging torque suppression methods of the motor. These methods include rotor skewing, variable tooth width, auxiliary slot, variable rotor arcs.
J.H. Hu, L. Wang, J.B. Zou, B. Zhao
openaire   +1 more source

Reduction of cogging torque in spindle motors for CD-ROM drive

IEEE Transactions on Magnetics, 1998
In this paper an approach to design a low cogging torque spindle motor without skewing stator slots or magnet poles is proposed. The effects of the slot and pole number combination and optimal choice of the width ratio of armature teeth to magnet pole are are investigated.
C.C. Hwang, S.B. John, S.S. Wu
openaire   +1 more source

Reduction of cogging torque by adopting semi circled permanent magnet

2011 1st International Conference on Electrical Energy Systems, 2011
In this paper, being based on Fourier expansion and energy method, the analytical expression of cogging torque of permanent magnet (PM) motor is derived, which can be used to analyze the effects of design parameters on cogging torque. Then a new method for reducing cogging torque by adopting semi circled magnetic pole is proposed.
S. Saravanan, M. Arun Noyal Doss, S. Jeevananthan, S. Vidyasagar   +3 more
openaire   +1 more source

Cogging torque reduction of brushless DC motor for an electric wheelchair

2016 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific), 2016
This paper presents a designing method to reduce the cogging torque of a brush less dc (BLDC) motor for an electric wheelchair. The initial model of a BLDC motor is designed by using the loading distribution method. Cogging torque is one of the main reasons not only to cause the torque ripple, but also to increase unwanted vibration of a BLDC motor ...
null Youngjun Kim, null Cheewoo Lee
openaire   +1 more source

Core shape optimization for cogging torque reduction of BLDC motor

IEEE International Electric Machines and Drives Conference. IEMDC'99. Proceedings (Cat. No.99EX272), 2003
The cogging torque in the small brushless DC (BLDC) motors used in the digital versatile disk (DVD) driving system or hard disk drive (HDD) system can cause some serious vibration problems. In this paper, some core shapes that reduce cogging torque are found by using a reluctance network method (RNM) for magnetic field analysis and a genetic algorithm (
null Ki-Jin Han, null Han-Sam Cho, null Dong-Hyeok Cho, null Hyun-Rae Cho, null Hae-Seok Lee, null Hyun-Kyo Jung   +5 more
openaire   +1 more source

AN OVERVIEW ON COGGING TORQUE AND TORQUE RIPPLE REDUCTION IN FLUX SWITCHING MACHINES

International Journal of Power and Energy Systems, 2021
openaire   +1 more source

Current Harmonics Controller for Reduction of Acoustic Noise, Vibrations and Torque Ripple Caused by Cogging Torque in PM Motors Under FOC Operation

Energies, 2020
Pavol Rafajdus
exaly  

Analysis and Reduction Methods of Cogging Torque in Dual PM Vernier Machines With Unevenly Distributed Split Teeth

IEEE Transactions on Industry Applications, 2022
Ronghai Qu, Xiang Ren
exaly  

A Novel Air-Gap Profile of Single-Phase Permanent-Magnet Brushless DC Motor for Starting Torque Improvement and Cogging Torque Reduction

IEEE Transactions on Magnetics, 2010
K R Rajagopal
exaly  

Reduction on Cogging Torque in Flux-Switching Permanent Magnet Machine by Teeth Notching Schemes

IEEE Transactions on Magnetics, 2012
Xiuhe Wang, Daohan Wang
exaly