Universiti Teknologi Malaysia Institutional Repository

Modelling of a horizontal active magnetic bearing system with uncertainties in deterministic form

Hussain, Abdul Rashid and Mohd. Yatim, Abdul Halim (2007) Modelling of a horizontal active magnetic bearing system with uncertainties in deterministic form. In: First Asia International Conference on Modelling and Simulation AMS 2007, 2007, NanYang Technological University, Singapore.

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Official URL: http://dx.doi.org/10.1109/AMS.2007.61

Abstract

In this paper the derivation of mathematical model of a horizontal active magnetic bearing (AMB) system in deterministic form is presented. The system is open-loop unstable and highly coupled due to nonlinearities inherited in the system such as gyroscopic effect and mass imbalance. Based on the equation of motions of the rotor and dynamic equation of electromagnetic coils, the dynamic model of the system with eight inputs is derived and represented in state-space format in which the system matrix is 16times16 in size. By using the upper and lower bounds of the parameter and the state variables of the system, the model is transformed into deterministic form where it can be shown that the system contains mismatched uncertainties in the state and disturbance matrices. This final system model with its numerical values can be used for the design of a class of a dynamic controller for system stabilization

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:active magnetic bearing system, uncertainties in deterministic form, active magnetic bearing (AMB)
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:14223
Deposited By: Liza Porijo
Deposited On:22 Aug 2011 01:49
Last Modified:28 Nov 2012 03:50

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