Title :
Modelling of a flexible rotor maglev system
Author :
Arredondo, I. ; Jugo, J. ; Etxebarria, V.
Author_Institution :
Dept. de Electricidad y Electronica, EHU
Abstract :
This paper describes the modelling process of a mechanical system consisting of a rotary flexible spindle hovered by active magnetic bearings (AMB), whose potential uses in the machine-tool industry have been well documented. The modelling takes into account the three main behavioural characteristics of such magnetically-levitated rotor: the rigid dynamics, the flexible dynamics and the rotating unbalanced motion. Using this model, a stabilizing controller has been successfully designed for the system and a complete experimental analysis of its performance is carried out. Also, the predictions of the model are compared with the actual measured experimental results on a laboratory set-up. Finally, a brief study about some non-linear behaviour observed m the system and its effect over the system stability at the critical speed is included
Keywords :
control system synthesis; magnetic bearings; magnetic levitation; nonlinear control systems; railways; stability; active magnetic bearings; flexible dynamics; flexible rotor maglev system; magnetically-levitated rotor; mechanical system; nonlinear behaviour; nonlinear system; rigid dynamics; rotary flexible spindle; rotating unbalanced motion; stabilizing controller; system stability; Control systems; Laboratories; Magnetic levitation; Nonlinear control systems; Nonlinear dynamical systems; Power system modeling; Predictive models; Shafts; Stability; Voltage;
Conference_Titel :
American Control Conference, 2006
Conference_Location :
Minneapolis, MN
Print_ISBN :
1-4244-0209-3
Electronic_ISBN :
1-4244-0209-3
DOI :
10.1109/ACC.2006.1655390
