Nonlinear uncertainty model of a magnetic suspension system

Authors:
O. Agamennoni;I. Krjanc;M. Lepetic;H. Chiacchiarini;D. Matko
Affiliations:
Dept. de Ing. Eléctrica y de Computadoras Universidad Nacional del Sur, Argentina and C.I.C. Comisión de Investigaciones Cientificas Buenos Aires, Argentina;-;-;Dept. de Ing. Eléctrica y de Computadoras Universidad, Nacional del Sur, Argentina and CONICET (Consejo Nacional de Investigaciones Cientíificas y Técnicas), Argentina;-
Venue:
Mathematical and Computer Modelling: An International Journal
Year:
2004

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Abstract

The nonlinear identification of a nominal model as well as the uncertainty bounds of a magnetic suspension system is developed. This system has a nonsymmetric dynamic behavior; it has an undershoot but not an overshoot. The proposed model structure is a cascade of a global linear fuzzy dynamic block followed by a piecewise linear function. This model structure allows a proper identification of the system dynamic and a tight description of the uncertainties.