Abstract
Magnetic Levitation is a powerful physical phenomena which, if correctly controlled, allows frictionless relative motion between two bodies. One of the main features of this system is that it could also provide active damping. However, in order to damp vibrations, a high gap is requested. The analytical model is insufficient to correctly describe the behaviour of such a system, as a lot of secondary effects rise. In order to study this problem in detail, the study of a simple single degree of freedom Maglev is proposed. The paper shows how the analytical model, which is used to build the active control, can influence the behaviour of the real system, and then a way to improve this model is discussed. Relying on FEM analysis, analytical and numerical models are compared, and the analytical one is improved, in order to guarantee a higher performance control. Both analytical and numerical model-based control are tested on an experimental test-bench. Results prove how the numerical model-based control can guarantee much better performance with the same computational costs.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
References
Al-Muthairi, N.F., Zribi, M.: Sliding mode control of a magnetic levitation system, Math. Probl. Eng. 93–107 (2004)
Bleuler, H.: A survey of magnetic levitation and magnetic bearing types. JSME Int. J. Ser. 3 Vib. Control Eng. Eng. Ind. 35, 335–342 (1992)
Bleuler, H.: Overview on various types of AMBs and their respective potential for applications. In: 14th International Symposium on Magnetic Bearings (2014)
Bleuler, H., et al.: In: Swhweitzer, G., Maslen, E. (eds.). Magnetic Bearings: Theory, Design and Applications to Rotating Machinery. Springer, Berlin (2009)
Bohagen, B.: Magnetic Levitation, Norwegian University of Science and Technology (2003)
Bolzern, P., Scattolini, R., Schiavoni, N.: Fondamenti di controlli automatici. McGraw-Hill, New York, NY (2008)
Braghin, F.: Appunti del corso: Sistemi meccatronici e laboratorio A, Politecnico di Milano (2014)
Chiba, A., Fukao, T., Ichikawa, O., Oshima, M., Takemoto, M., Dorrell, D.: Magnetic Bearings and Bearingless Drives. Elsevier, Amsterdam (2005)
di Milano, P.: Modello e Controllo di Cuscinetti Magnetici Attivi ad Elevato Traferro, Politecnico, University of di Milano. Mechanical Engineering thesis, Mattia Fornoni (2014)
Diana, G., Cheli, F.: Dinamica dei sistemi meccanici, vol. 2. Polipress, Assago (2010)
Earnshaw: On the nature of molecular forces which regulate the constitution of lumiferous ether. Trans. Cambridge Philos. Soc. 7, 97–112 (1842)
Fornoni, M., Castelli-Dezza, F.: Cuscinetti a Levitazione Magnetica (2013)
Gerami, A., Allaire, P., Fittro, R.: Modeling and control of magnetic bearings with nonlinear magnetization. In: 14th International Symposium on Magnetic Bearings (2014)
Gerhard, S.: Active magnetic bearings-chances and limitations. International Centre for Magnetic Bearings, ETH Zurich (2006)
Giorgio, D., Cheli, F.: Dinamica dei sistemi meccanici, Politecnico di Milano, vol. 1 (2010)
Hossain, S.: Design of a Robust Controller for a Magnetic Levitation System, Graduate Student (ECE), Wichita State University
Isidori, A.: Nonlinear Control System. Springer, New York (2000)
Knospe, C.R.: Active magnetic bearings for machining applications. Control Eng. Pract. 307–313 (2007)
Liu, G., Chen, Y.: Levitation force analysis of medium and low speed maglev vehicles. J. Mod. Transp. 93–97 (2012)
Repcic, N., Saric, I., Muminovic, A.: Opportunities to improve production using active magnetic bearing systems. In: 15th International Research/Expert Conference, “Trends in the Development of Machinery and Associated Technology” (2011)
Shameli, E., Behrad Khamesee, M., Paul Huissoon, J.: Real-time control of a magnetic levitation device based on instantaneous modeling of magnetic field. Mechatron. J. 536–544 (2008)
Smirnov, A., Jastrzebski, R., Hynynen, K., Pyrhonen, O.: Comparison of suboptimal control method in magnetic levitation system, pp. 1–10, 2-6 Sept. 2013
Yang, Z.-J., Tateishi, M.: Adaptive robust nonlinear control of a magnetic levitation system. Autom. J. 1125–1131 (2001)
Yin, L., Zhao, L.: Nonlinear control for a large air gap magnetic bearing system. In: Transactions, SMiRT 19, Toronto, August 2007 (2007)
Yoon, S.Y., et al.: Control of Surge in Centrifugal Compressor. Springer, Berlin (2013)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 The Society of Experimental Mechanics, Inc.
About this paper
Cite this paper
Braghin, F., Castelli-Dezza, F., Ghiringhelli, S. (2016). High Gap Maglev Model and Experimental Validation. In: Wee Sit, E. (eds) Sensors and Instrumentation, Volume 5. Conference Proceedings of the Society for Experimental Mechanics Series. Springer, Cham. https://doi.org/10.1007/978-3-319-29859-7_10
Download citation
DOI: https://doi.org/10.1007/978-3-319-29859-7_10
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-29858-0
Online ISBN: 978-3-319-29859-7
eBook Packages: EngineeringEngineering (R0)