Voltage Amplitude Control of Electromagnetic Levitation Device

Conference: CEM 2006 - 6th International Conference on Computational Electromagnetics
04/04/2006 - 04/06/2006 at Aachen, Germany

Proceedings: CEM 2006

Pages: 2Language: englishTyp: PDF

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Stepien, Slawomir; Szymanski, Grzegorz (Poznan University of Technology, Computer Engineering Department, ul. Piotrowo 3a, 60-965 Poznan, Poland)

This research presents a voltage control method of an electromagnetic levitation device. Finite element method is used to model the device known as Team Workshop Problem 28. Proportional-Integral controller of sinusoidal voltage amplitude ensures a needed levitator position. The levitation device equations and the controller equations are coupled and sequentially solved in control loop. A model for solving the control problem is presented. In numerical example a case of position control is examined. An amplitude value of sinusoidal voltage applied on coils for a given position is determined.