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Robust tracking control of a magnetically suspended rigid bodyThis study is an application of H-infinity and microsynthesis for designing robust tracking controllers for the Large Angle Magnetic Suspension Test Facility. The modeling, design, analysis, simulation, and testing of a control law that guarantees tracking performance under external disturbances and model uncertainties is investigated. The type of uncertainties considered and the tracking performance metric used is discussed. This study demonstrates the tradeoff between tracking performance at low frequencies and robustness at high frequencies. Two sets of controllers were designed and tested. The first set emphasized performance over robustness, while the second set traded off performance for robustness. Comparisons of simulation and test results are also included. Current simulation and experimental results indicate that reasonably good robust tracking performance can be attained for this system, using multivariable robust control approach.
Document ID
19930068189
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Lim, Kyong B.
(NASA Langley Research Center Hampton, VA, United States)
Cox, David E.
(NASA Langley Research Center Hampton, VA, United States)
Date Acquired
August 16, 2013
Publication Date
August 1, 1993
Subject Category
Cybernetics
Meeting Information
Meeting: International Symposium on Magnetic Suspension Technology
Location: Seattle, WA
Country: United States
Start Date: August 11, 1993
End Date: August 13, 1993
Accession Number
93A52186
Distribution Limits
Public
Copyright
Other

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