Title :
High precision servo drives with DSP-based torque ripple reduction
Author :
Gutt, H.-J. ; Scholl, F.D. ; Blattner, J.
Author_Institution :
Inst. for Electr. Machines & Drives, Stuttgart Univ.
Abstract :
After stating the requirements for PM-excited synchronous motor drives and analyzing the main harmonics of their torque ripple, two control concepts for torque ripple reduction are presented: current control, based on offline torque estimation; and online observer-based torque control. Experimental results show a reduction in the torque ripple of about a factor of six compared to conventional techniques
Keywords :
control system synthesis; electric current control; exciters; harmonics; machine control; machine testing; machine theory; observers; parameter estimation; permanent magnet motors; servomotors; synchronous motor drives; synthetic metals; torque control; PM-excited synchronous servomotor drives; control performance; current control; machine control concepts; offline torque estimation; online observer-based torque control; torque ripple harmonics; torque ripple reduction; Costs; Couplings; Magnetic flux; Reluctance motors; Robots; Servomechanisms; Servomotors; Stators; Synchronous motors; Torque control;
Conference_Titel :
AFRICON, 1996., IEEE AFRICON 4th
Conference_Location :
Stellenbosch
Print_ISBN :
0-7803-3019-6
DOI :
10.1109/AFRCON.1996.562963
