Beams Document 3602-v1

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Robust Control Systems Research with Applications

Document #:
Beams-doc-3602-v1
Document type:
Talk
Submitted by:
Camille M. Ginsburg
Updated by:
Camille M. Ginsburg
Document Created:
29 Apr 2010, 09:49
Contents Revised:
29 Apr 2010, 09:49
Metadata Revised:
29 Apr 2010, 09:49
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Abstract:
This seminar presents some useful systems level concepts on analyzing and synthesizing control systems from robustness point of view. Robustness is the ability to deliver acceptable performance in the presence of perturbations and as such is closely related to reliability and resilience. The uncertainties in the system can be modeled as real parameter perturbations, unmodeled dynamics, neglected nonlinearities and external disturbances. The system dynamics are modeled both from time domain state space representation as well as frequency domain transfer function representation. Depending on which framework the system dynamics is amenable, robust control techniques suitable for that framework are presented. The proposed robust control philosophy is extended to fault tolerance/failure modes wherein the faulty (or failed) situation is treated as perturbation from the nominal state and the robust control strategy is applied to keep the system stable (and possibly deliver acceptable performance) in the presence of these faults. The proposed robust control methodologies are illustrated with applications in flight control and the possibilities of applying these powerful concepts to control problems in nuclear industry (such as control of superconducting cavities) are explored.
Files in Document:
  • pdf file (Yedavalli_Fermilabs-seminar Apr2010.pdf, 1.2 MB)
  • powerpoint file (Yedavalli_Fermilabs-seminar Apr2010.pptx, 1.1 MB)
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