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

Mohamed Yatim, Abdul Halim and Ahmad, Mohamad Noh and Husain, Abdul Rashid (2007) Modeling of a horizontal active magnetic bearing system with uncertainties in deterministic form. In: Proceedings of the First Asia International Conference on Modelling & Simulation (AMS'07). Institute of Electrical and Electronics Engineering (IEEE), pp. 42-47. ISBN 0-7695-2845-7

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


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:Book Section
Uncontrolled Keywords:deterministic form uncertainties, dynamic controller, electromagnetic coils
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Q Science > QA Mathematics
Divisions:Electrical Engineering
ID Code:9596
Deposited By: Salasiah M Said
Deposited On:31 Dec 2009 04:48
Last Modified:03 Sep 2017 09:37

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