Modelling and control for an EMS system with two inputs
by Xiao Zhang; Ying Tan; Yungang Li; Iven Mareels
International Journal of Modelling, Identification and Control (IJMIC), Vol. 16, No. 2, 2012

Abstract: In an electromagnetic suspension system of a magnetic levitation vehicle, a single electromagnet with two control voltages (inputs) is the smallest electromechanical unit providing for a suspension force. In this paper, a non-linear controller using a feedback linearisation technique is developed on the basis of a non-linear model for such a suspension unit. The state feedback control law requires an observer, and a high-gain observer is proposed. The resulting observer-controller performance is illustrated using a simulation study.

Online publication date: Wed, 17-Dec-2014

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