Reducing torque ripple of brushless DC motor by varying input voltage

This paper presents the method of reducing torque ripple of brushless direct current (BLDC) motor. In the BLDC motor, the torque ripple is decided by the back-electromotive force (EMF) and current waveform. If the back-EMF is constant in the conduction region of current, the torque ripple depends on...

Full description

Saved in:
Bibliographic Details
Published in:IEEE transactions on magnetics 2006-04, Vol.42 (4), p.1307-1310
Main Authors: NAM, Ki-Yong, LEE, Woo-Taik, LEE, Choon-Man, HONG, Jung-Pyo
Format: Article
Language:English
Subjects:
BLDC motor
Brushless DC motors
Brushless motors
Circuit analysis
Circuit simulation
Commutation
Cross-disciplinary physics: materials science
rheology
current ripple
DC motors
Direct current
Electric potential
EMF
Exact sciences and technology
Inductance
Magnetism
Materials science
Motors
Other topics in materials science
Physics
Ripples
Steady-state
Switches
Torque
torque ripple
varying input voltage
Voltage
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This paper presents the method of reducing torque ripple of brushless direct current (BLDC) motor. In the BLDC motor, the torque ripple is decided by the back-electromotive force (EMF) and current waveform. If the back-EMF is constant in the conduction region of current, the torque ripple depends on the current ripple. The period of freewheeling region in the conduction region can be acquired by circuit analysis using the Laplace transformation and the torque ripple can be also reduced by varying input voltage to reduce the current ripple. The suggested method to reduce the torque ripple is confirmed by the dynamic simulation with the parameters of 500W BLDC motor
ISSN:0018-9464
1941-0069
DOI:10.1109/TMAG.2006.871937