Title :
Active compensation of electromagnetic torque harmonics in brushless DC motors
Author :
N´diaye, A. ; Espanet, C. ; Miraoui, A. ; Kauffmann, J.M.
Author_Institution :
Lab. d´´Electron., d´´Electron. et des Syst., UTBM, Belfort, France
Abstract :
This paper deals with active compensation of torque harmonics in brushless DC motors. The proposed method consists in analytical computation of currents which allow removal of electromagnetic torque harmonics. The originality of this paper is that, for a given motor, the number of harmonic currents is minimized. Therefore, the maximum frequency of currents is limited so that practical implementation is simplified. A complete algorithm of currents harmonics computation is presented and an example concerning a motor integrated in the wheel of a bicycle is detailed, in order to show the accuracy of the method
Keywords :
brushless DC motors; compensation; electric vehicles; electromagnetic fields; harmonics; machine theory; torque; traction motors; active electromagnetic torque harmonics compensation; analytical currents computation; brushless DC motors; current maximum frequency; currents harmonics computation algorithm; electric bicycle wheel; Brushless DC motors; Commutation; DC machines; DC motors; Electromagnetic analysis; Electromagnetic forces; Frequency; Teeth; Torque; Traction motors;
Conference_Titel :
Electric Machines and Drives Conference, 2001. IEMDC 2001. IEEE International
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-7091-0
DOI :
10.1109/IEMDC.2001.939299
