Modelling, investigation, simulation, and PID current control of Active Magnetic Levitation FEM model

Author

Pilat, Andrzej

Author_Institution

Dept. of Automatics & Biomed. Eng., AGH - Univ. of Sci. & Technol., Kraków, Poland

fYear

2013

fDate

26-29 Aug. 2013

Firstpage

299

Lastpage

304

Abstract

This elaboration presents the numerical model of the Active Magnetic Levitation (AML). The model is developed in the 2D axis symmetry mode. The Finite Element Method is used to calculate the magnetic field. The Ordinary Differential Equation is solved simultaneously to simulate the levitated object motion. The model is solved in the time domain, together with the levitated object motion being simulated. A few investigation simulations are realized to diagnose the basic properties of the model. The PID current mode controller is used to drive the coil and keep the object levitated in the desired position. The electromagnetic force and magnetic flux density are investigated to analyze the AML non-linearities. Finally, the conclusions towards the experimental research are given.

Keywords

control nonlinearities; differential equations; electric current control; finite element analysis; magnetic flux; magnetic levitation; magnetic variables control; three-term control; 2D axis symmetry mode; AML nonlinearities; PID current mode controller; active magnetic levitation FEM model; coil; electromagnetic force; finite element method; magnetic flux density; ordinary differential equation; Coils; Electromagnetic forces; Electromagnets; Iron; Magnetic levitation; Mathematical model; Numerical models;

fLanguage

English

Publisher

ieee

Conference_Titel

Methods and Models in Automation and Robotics (MMAR), 2013 18th International Conference on

Conference_Location

Miedzyzdroje

Print_ISBN

978-1-4673-5506-3

Type

conf

DOI

10.1109/MMAR.2013.6669923

Filename

6669923