A new approach for minimum-torque-ripple maximum-efficiency controlof BLDC motor
Sung Jun Park
Han Woong Park
Man Hyung Lee
Harashima, F.
Dept. of Electr. Eng., Koje Coll.;
This paper appears in: Industrial Electronics, IEEE Transactions on
Publication Date: Feb 2000
Volume: 47,
Issue: 1
On page(s): 109-114
ISSN: 0278-0046
References Cited: 6
CODEN: ITIED6
INSPEC Accession Number: 6507838
Digital Object Identifier: 10.1109/41.824132
Current Version Published: 2002-08-06
Abstract
Torque-ripple control of the brushless DC motor has been the main
issue of the servo drive systems in which the speed fluctuation,
vibration, and acoustic noise should be minimized. Most methods for
suppressing the torque ripples require Fourier series analysis and
either iterative or least-mean-square minimization. In this paper, a
novel approach to achieve ripple-free torque control with maximum
efficiency based on the d-q-0 reference frame is presented. The proposed
method optimizes the reference phase current waveforms which include the
case of three-phase unbalanced conditions. As a result, the proposed
approach provides a simple way to obtain optimal motor excitation
currents. The validity and practical applications of the proposed
control scheme are verified through the simulations and experimental
results
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