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A comparison of frequency domain design and l1-optimal controlA frequency-domain design methodology is applied to a DC motor-speed control system and the results are compared to those obtained using l1-optimal control theory (Pearson and Bamieh, 1990). Both methods synthesize controllers that maximize the allowable size of an unknown-but-bounded disturbance while satisfying prespecified constraints on the control, the control rate, and the outputs. The frequency-domain design technique in general results in much lower-order compensators than those required by the l1-optimal method for a given size of disturbance. Also, the design trade-offs regarding the bandwidth of the system, the size of the disturbance input, and the structural complexity of the controller transfer function become quite transparent.
Document ID
19930029203
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Jayasuriya, Suhada
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Sobhani, Massoud
(NASA Lyndon B. Johnson Space Center Houston, TX, United States)
Zentgraf, Peter
(Texas A & M Univ. College Station, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1991
Publication Information
Publication: In: IEEE Conference on Decision and Control, 30th, Brighton, United Kingdom, Dec. 11-13, 1991, Proceedings. Vol. 3 (A93-13001 02-63)
Publisher: Institute of Electrical and Electronics Engineers, Inc.
Subject Category
Cybernetics
Accession Number
93A13200
Funding Number(s)
CONTRACT_GRANT: NAG9-347
Distribution Limits
Public
Copyright
Other

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