A Novel Magnetic-Levitation System: Design, Implementation, and Nonlinear Control

Modelado y control de un sistema de levitación magnética basado en un cojinete magnético activo

“…Además, se han popularizado por las diversas aplicaciones que tienen, tales como: cojinetes magnéticos (Chen, 2010) y (Du, 2010); sistemas para trenes de levitación magnética (Hasirci, 2011); aislamiento de vibraciones (Tsuda, 2009); microrobots magnéticos (Kummer, 2010); máquinas eléctricas (Arrendondo, 2008); sistema de transportación magnética (Wai, 2011); sistemas de posicionamiento nanométrico (Kim, 2007), entre muchas otras (Peijnenburg, 2006), (Kimman, 2010), (Lee, 2006). El sistema de levitación propuesto en este trabajo consiste en una viga con libertad para rotar, la cual es estabilizada mediante un electroimán colocado en uno de los extremos.…”

Cascade Control of Magnetic Levitation with Sliding Modes

“…Magnetic levitation technology with frictionless movement has been used in many industrial systems including in high-speed maglev trains, frictionless bearings, electromagnetic cranes, levitation of wind tunnel models, vibration isolation of sensitive machinery, levitation of molten metal in induction furnaces, rocketguiding projects, levitation of metal slabs during manufacture and high-precision positioning of wafers in photolithography [1][2][3][4][5][6][7][8]. The technology under a feedback controller can ensure reliable and high-speed operations, but getting a high control performance is not easy with standard controllers due to open-loop unstable and highly nonlinear dynamics, and parameter uncertainties of the magnetic levitation plants.…”

“…Many magnetic levitation control design have been reported in the literature, including feedback linearization based controllers [4,6,[9][10][11], linear state feedback control design [6,12], the gain scheduling approach [13], observer-based control [5], neural network techniques [14], sliding mode controllers [8,15,16], backstepping control [17], model predictive control [18], cascade control [19] and PID controllers [20]. Since the governing differential equations are highly nonlinear, the nonlinear controllers are more attractive.…”

3D FEM analysis of a novel magnetic levitation system

“…Modeling and simulation of the newly-proposed maglev system by using a numerical and analytical method may provide a good tool for observing the characteristic of the dynamic behavior of the moving part. A 2D current sheet model of this system is proposed in [14] and an experimental performance investigation is explained in [15]. Since one of the main problems with maglev systems is Low Damping Problem [16], an experimental test to determine whether or not the proposed system has robustness to external disturbances is presented in [17].…”

“…The rest of this paper is organized as follows: Section II presents a simple design for the proposed system. To provide a better comparison facility, the same design conditions with the experimental study presented in [15] were used. Section III reports 3D modeling and simulation of the proposed system and, finally, the last section highlights some concluding remarks.…”