Modeling and control of a magnetic levitation system based on active magnetic bearing

Marlon Cruz-Pegueros, Oscar Octavio Gutiérrez Frías, Norma Beatriz Lozada-Castillo, Alberto Luviano- Juárez

Abstract


In this paper, we present the design, modeling as well as the implementation of a magnetic levitation system, consisting on a single-degree of freedom pendular beam, which is driven by means of an active magnetic bearing. The analysis includes the state space representation and, after a tangent linearization process, its transfer function is obtained. In addition, the characteristics of the device such as the electronic instrumentation and mechanical design are described. In particular, it is shown the design procedure of the electromagnetic actuator used, as well as its characterization to determine the proportional constant of the electromagnetic force with respect to a current input. Finally, some numerical simulations and experimental results of the implementation of some classic controllers in stabilization task are shown. 


Keywords


Active magnetic bearing; linear control; electromagnetic force; test bed

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DOI: https://doi.org/10.21640/ns.v9i19.940

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