Title :
Torque ripple reduction for brushless DC motor speed control system
Author :
Kwok, S.T. ; Lee, C.K.
Author_Institution :
Hong Kong Polytech., Kowloon, Hong Kong
Abstract :
Reducing the torque ripples generated in a brushless DC motor speed control system for inverters with two different switching modes is studied. The current and voltage functions of the inverters, the 120° discontinuous current mode and the 180° continuous current mode, are formulated. The required input functions to reduce the torque ripples are thus formed. Simulation results illustrating the feasibility of this approach are included. As the generation of the required compensated current functions is complex, a suggestion to implement such a control system using a digital signal processor is presented
Keywords :
DC motors; machine control; torque; velocity control; brushless DC motor; continuous current mode; current functions; digital signal processor; discontinuous current mode; inverters; speed control system; switching modes; torque ripple reduction; voltage functions; Brushless DC motors; DC generators; DC motors; Inverters; Power harmonic filters; Stators; Synchronous motors; Torque; Velocity control; Voltage;
Conference_Titel :
Power Electronics Specialists Conference, 1991. PESC '91 Record., 22nd Annual IEEE
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-0090-4
DOI :
10.1109/PESC.1991.162752
