Title :
Optimal switching time calculation in Predictive Torque Control
Author :
Landsmann, P. ; Stolze, P. ; Kennel, R.
Author_Institution :
Inst. for Electr. Drive Syst. & Power Electron., Tech. Univ. Munchen, Munich, Germany
fDate :
May 30 2011-June 3 2011
Abstract :
This paper presents an approach to include a variable switching time into basic Predictive Torque Control methods. Using a constant switching frequency, every second switching time is shifted aiming at the minimization of the torque ripple. The optimal switching time is derived analytically from the torque error function. The result is a simple equation which can easily be included in the prediction algorithm. The proposed method is compared with other approaches in simulation and experiment showing that it yields a significant reduction of torque ripple and mean torque error.
Keywords :
machine control; permanent magnet machines; predictive control; synchronous machines; torque control; PMSM; optimal switching time calculation; predictive torque control; torque error function; variable switching time; Insulated gate bipolar transistors; Inverters; Rotors; Stators; Switches; Switching frequency; Torque;
Conference_Titel :
Power Electronics and ECCE Asia (ICPE & ECCE), 2011 IEEE 8th International Conference on
Conference_Location :
Jeju
Print_ISBN :
978-1-61284-958-4
Electronic_ISBN :
2150-6078
DOI :
10.1109/ICPE.2011.5944645