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TECHNICAL PAPERS: Gas Turbines: Structures and Dynamics

Dynamic Modeling and Validation of a Lorentz, Self-Bearing Motor Test Rig

[+] Author and Article Information
L. S. Stephens, D.-G. Kim

Department of Mechanical Engineering, University of Kentucky, 521 CRMS, Lexington, KY 40506

J. Eng. Gas Turbines Power 125(1), 156-166 (Dec 27, 2002) (11 pages) doi:10.1115/1.1499731 History: Received December 01, 2000; Revised March 01, 2001; Online December 27, 2002
Copyright © 2003 by ASME
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References

Figures

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Block diagram for modeling and controller design
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Rotor with first flexible body mode (2792 HZ)
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Self-bearing motor layout
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Control of self-bearing motor
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Conventional active magnetic bearing open-loop transfer functions
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Conventional active magnetic bearing closed-loop transfer functions
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Self-bearing motor radial position direct open-loop transfer functions
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Self-bearing motor angular position open-loop transfer function
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Active magnetic bearing radial sensor to motor radial force transfer function
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Self-bearing motor radial sensor to active magnetic bearing force transfer function
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Self-bearing motor cross-coupled transfer functions for iθ=12 A and θ=11.25 deg
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Self-bearing motor and conventional active magnetic bearing cross-coupled force transfer functions for iθ=12 A and θ=11.25 deg

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