Design and analysis of a digital controller for an electromagnetic suspension system

Pao Yue-kong Library Electronic Theses Database

Design and analysis of a digital controller for an electromagnetic suspension system

 

Author: Suen, Sui-leung Bosco
Title: Design and analysis of a digital controller for an electromagnetic suspension system
Year: 1999
Subject: Magnetic suspension
Electromagnetic devices
Digital control systems
Hong Kong Polytechnic University -- Dissertations
Department: Multi-disciplinary Studies
Dept. of Electronic Engineering
Pages: iii, 112 leaves : ill. (some col.) ; 30 cm
Language: English
InnoPac Record: http://library.polyu.edu.hk/record=b1485416
URI: http://theses.lib.polyu.edu.hk/handle/200/2436
Abstract: This report presents the application of modern control theory in designing and analyzing a digital controller for an Electromagnetic Suspension System. In this project, a linear-time-invariant discrete-time model of the suspension system is developed, and a detailed stability analysis has been performed on the suspension system. This reveals that certain compensation has to be introduced into the system. Then, state-space and observer design approaches are applied for feedback compensation. An optimal control technique has been investigated, and simulation results illustrate the effectiveness of the technique. The choice of the performance index has also been investigated. The result indicates that the different performance indices would introduce different effects to the system behavior.

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