Speed Tracking of a Linear Induction Motor-Enumerative Nonlinear Model Predictive Control
2013 (English)In: IEEE Transactions on Control Systems Technology, ISSN 1063-6536, E-ISSN 1558-0865, Vol. 21, no 5, 1956-1962 p.Article in journal (Refereed) Published
Direct torque control (DTC) is considered as one of the most efficient techniques for speed and/or position tracking control of induction motor drives. However, this control scheme has several drawbacks: the switching frequency may exceed the maximum allowable switching frequency of the inverters, and the ripples in current and torque, especially at low speed tracking, may be too large. In this brief, we propose a new approach that overcomes these problems. The suggested controller is a model predictive controller, which directly controls the inverter switches. It is easy to implement in real time and it outperforms all previous approaches. Simulation results show that the new approach has as good tracking properties as any other scheme, and that it reduces the average inverter switching frequency about 95% as compared to classical DTC.
Place, publisher, year, edition, pages
Institute of Electrical and Electronics Engineers (IEEE) , 2013. Vol. 21, no 5, 1956-1962 p.
Integer programming, inverter, linear induction motor, nonlinear model predictive control, optimal control, speed tracking control
Engineering and Technology
IdentifiersURN: urn:nbn:se:liu:diva-97657DOI: 10.1109/TCST.2012.2217745ISI: 000323512300039OAI: oai:DiVA.org:liu-97657DiVA: diva2:649991