Research Repository

Speed Control of an Air Turbine

Shi, Juan and Ellis, C (2001) Speed Control of an Air Turbine. In: Proceedings of IEEE Region 10 International Conference on Electrical and Electronic Technology, 19-22 August, 2001, Singapore. Tien, Dapeng and Liang, Yung C, eds. IEEE, Piscataway, New Jersey, pp. 679-684.

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Print Request Permissions Save to Project Active magnetic bearings have been used in a rapidly growing number of applications such as jet engines, compressors, pumps and flywheel systems that are required to meet high speed, low vibration, zero frictional wear and clean environment specifications. The MBC 500 is a magnetic bearing system which includes an internal air turbine drive for a rotor that can reach a speed of ±10,000 RPM. In this paper, a project aiming to design and implement a speed controller for the air turbine is discussed. In order to design the speed controller, a model of the air turbine is identified using data collected in the frequency domain. Methods to overcome the difficulties encountered in system identification caused by the MATLAB μ-Analysis and Synthesis toolbox are addressed. The model obtained at a particular operating point using frequency response data is validated in the time domain. Since the system is nonlinear, a set of models has been obtained at different operating points and a nominal model is determined. The speed controller has been designed, on the basis of the nominal model, in both continuous and discrete time domains. The designed digital controller is implemented on a dSPACE DS1102 digital signal processor board and the controller designed in s-domain is implemented with an analogue circuit.

Item Type: Book Section
ISBN: 0780371011 (print) 0780371038 (CD-ROM) 078037102X (microfiche)
Uncontrolled Keywords: control system analysis computing, control system synthesis, frequency response, system identification, magnetic bearings, magnetic levitation, nonlinear control systems, rotors, turbines, velocity control, MATLAB, mBC 500 magnetic bearing system, active magnetic bearings, air turbine speed control, computer simulation, control simulation, dSPACE DS1102 digital signal processor board, frequency domain, frequency response data, internal air turbine drive, nonlinear control, rotor, speed controller design, time domain, compressors, flywheels, frequency domain analysis, jet engines, mathematical models, signal design, turbines, velocity control
Subjects: Current > FOR Classification > 0906 Electrical and Electronic Engineering
Current > Division/Research > Other
Depositing User: Ms Julie Gardner
Date Deposited: 08 Jul 2014 05:23
Last Modified: 08 Jul 2014 05:23
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Citations in Scopus: 0 - View on Scopus

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