A pole assignment technique by state feedback can be used to control an induction motor drive to produce the required transient performance with zero error in steady state. However, decoupled control of the rotor flux and the output torque cannot be ideally achieved if as VSI (voltage source invertor) is used, though the interaction between the two control loops can be partly compensated. In order to carry out the state feedback, a rotor flux estimation technique is necessary and other motor state variables can also be estimated, thus achieving better performance. Closed loop estimators provide controllable and flexible performance.
Palabras clave: Closed loop systems, Drives, Feedback, Induction motors, Inverters, Poles and zeros, State space methods
1st IEE Colloquium on Control of Induction Motors, Londres, Inglaterra (Reino Unido). 14 abril 1989
Fecha de publicación: abril 1989.
J.A. Taufiq, A. García-Cerrada, State feedback control of invertor fed induction motor drives, 1st IEE Colloquium on Control of Induction Motors. pp. 2/1-2/6, Londres, Reino Unido, 14 Abril 1989