Fulltext

Design of a two-Degree-of-Freedom Controller for a Magnetic Levitation System Based on LQG Technique

Ibraheem Kasim Ibraheem إبراهيم قاسم إبراهيم

AL-NAHRAIN JOURNAL FOR ENGINEERING SCIENCES مجلة النهرين للعلوم الهندسية
ISSN: 25219154 / eISSN 25219162 Year: 2013 Volume: 16 Issue: 1 Pages: 67-77
Publisher: Al-Nahrain University جامعة النهرين

Abstract

A new control design procedure has been proposed in this paper based on the LQG control design. A two degree of freedom controller with integral action is obtained and tested on the magnetic levitation system, which is a good test-bed for control design because of its nonlinearity and unstability with practical uses in high-speed transportation and magnetic bearings. Simulations are performed under MATLAB environment and included to highlight that the proposed controller accurately achieves position tracking for different kinds of reference inputs.

Keywords

LQG --- Kalman filter --- Magnetic levitation --- Integral action --- two-degree-of freedom.