Title :
Research on torque direct control method for brushless DC motors with non-ideal back EMF waveforms
Author_Institution :
Res. Center of Autom. Control, Binzhou Univ., Binzhou, China
Abstract :
The torque of brushless DC motor (BLDCM) with non-ideal back EMF waveforms fluctuates in terms of theory. This paper puts forward that the turn-off phases don´t affect the voltage vector and the flux-linkage by analyzing the voltage vector and the flux-linkage control theory of BLDCM. Then, a torque direct control method for BLDCM with non-ideal back EMF waveforms was presented, which can reduce the torque ripple by compensating the phase current. The simulation results validate the feasibility of the control strategy.
Keywords :
brushless DC motors; machine control; torque control; brushless DC motors; flux-linkage control theory; nonideal back EMF waveforms; phase current; torque direct control; torque ripple; turn-off phases; voltage vector; Brushless DC motors; Stators; Torque; Torque control; Windings; BLDCM; back EMF; current compensate; torque direct control;
Conference_Titel :
Artificial Intelligence, Management Science and Electronic Commerce (AIMSEC), 2011 2nd International Conference on
Conference_Location :
Deng Leng
Print_ISBN :
978-1-4577-0535-9
DOI :
10.1109/AIMSEC.2011.6009882
