Title :
Torque harmonics minimization in PM synchronous motor with back EMF estimation
Author :
Cho, K.Y. ; Bae, J.D. ; Chung, S.K. ; Youn, M.J.
Author_Institution :
Gold Star Co., South Korea
Abstract :
Predictive current control in the synchronous reference frame with back EMF estimation using previous voltages and currents is presented. To reduce the torque harmonics produced by the harmonics in the air gap flux by an online set-up, the d-axis and q-axis currents are compensated. The compensated harmonic currents are derived by using the estimated flux linkage harmonics which are derived from the estimated back EMFs. The effectiveness of the proposed control scheme is compared to the conventional one through the simulation and experiments.<>
Keywords :
digital control; electric current control; harmonics; machine control; machine testing; machine theory; magnetic flux; permanent magnet motors; power engineering computing; predictive control; spark gaps; synchronous motors; torque; PM synchronous motor; air gap flux; back EMF estimation; computer control; d-axis current; experiments; flux linkage harmonics; online; predictive current control; q-axis current; simulation; synchronous reference frame; torque harmonics minimization; Couplings; Current control; Magnetic flux; Magnetic separation; Power harmonic filters; Reluctance motors; Rotors; Stators; Synchronous motors; Torque control;
Conference_Titel :
TENCON '93. Proceedings. Computer, Communication, Control and Power Engineering.1993 IEEE Region 10 Conference on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-1233-3
DOI :
10.1109/TENCON.1993.320711
