Title :
Generalized Model Predictive Direct Torque Control: Long prediction horizons and minimization of switching losses
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Auckland, Auckland, New Zealand
Abstract :
This paper presents a generalized Model Predictive Direct Torque Control scheme with an extended horizon, which is composed of multiple hinges (groups of switch transitions) linked by several extrapolation segments. The controller´s performance is further enhanced by minimizing the switching losses in the inverter. Initial results suggest that with respect to state of the art Direct Torque Control, the switching losses are reduced by up to 60%, while the Total Harmonic Distortion of the torque is at the same time improved by 20%. These results are based on a medium-voltage three-phase Neutral Point Clamped inverter driving an induction machine.
Keywords :
harmonic distortion; predictive control; torque control; direct torque control; generalized model predictive direct torque control; induction machine; long prediction horizon; medium voltage three phase neutral point clamped inverter; multiple hinges; switching losses minimization; torque total harmonic distortion; Extrapolation; Fasteners; Inverters; Medium voltage; Performance loss; Predictive models; Switches; Switching loss; Torque control; Total harmonic distortion; Direct Torque Control; Model Predictive Control; Power Electronics; Switching Losses; Variable Speed Drive;
Conference_Titel :
Decision and Control, 2009 held jointly with the 2009 28th Chinese Control Conference. CDC/CCC 2009. Proceedings of the 48th IEEE Conference on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4244-3871-6
Electronic_ISBN :
0191-2216
DOI :
10.1109/CDC.2009.5399829