Title :
Feedforward/feedback control of a magnetic levitation apparatus
Author :
Di Fluri, Antonio ; Piazzi, Aurelio ; Visioli, Antonio
Author_Institution :
Dipt. di Ing. dell´Inf., Univ. of Parma, Parma, Italy
Abstract :
A magnetic levitation apparatus is often employed in control education as a benchmark for the design of a control system for a nonlinear unstable process. In this paper we present a combined feedforward/feedback approach which takes into account the constraints of the system. In particular, we highlight the use of a feedforward control law which is based on a dynamic inversion of the closed-loop system. The robustness of the control system with respect to structured uncertainties is evaluated.
Keywords :
closed loop systems; control system synthesis; education; feedback; feedforward; magnetic levitation; nonlinear control systems; uncertain systems; closed-loop system; control education; control system design; dynamic inversion; feedback control; feedforward control; magnetic levitation apparatus; nonlinear unstable process; structured uncertainties; Acceleration; Control systems; Electromagnets; Feedback control; Feedforward neural networks; Magnetic levitation; Polynomials;
Conference_Titel :
Control Conference (ECC), 2009 European
Conference_Location :
Budapest
Print_ISBN :
978-3-9524173-9-3
