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UBC Theses and Dissertations
Quantitative adaptive robust control based on a robust frequency domain estimator Wang, Hongtao
Abstract
It is widely appreciated that robust control and adaptive control focus on dealing with system uncertainty but emphasize different aspects. Adaptive control is efficient in eliminating structured uncertainty but has difficulty handling unstructured uncertainty. On the other hand, robust control guarantees the stability for the worst case but ends up with a very conservative design. This thesis will be mainly concerned with the development of a frequency domain quantitative adaptive robust control strategy, which can be viewed as a good combination of adaptive control and robust control to obtain the best closed-loop performance of a stable closed-loop system. The research will consist of two parts. Part one is to develop a new estimation method called frequency domain robust estimator which can improve the frequency function estimate and quantify system uncertainties in the frequency domain Part Two is to implement the quantitative adaptive robust controller based on the information obtained from the robust estimator.
Item Metadata
Title |
Quantitative adaptive robust control based on a robust frequency domain estimator
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1992
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Description |
It is widely appreciated that robust control and adaptive control focus on dealing with system
uncertainty but emphasize different aspects. Adaptive control is efficient in eliminating structured
uncertainty but has difficulty handling unstructured uncertainty. On the other hand, robust control
guarantees the stability for the worst case but ends up with a very conservative design. This thesis
will be mainly concerned with the development of a frequency domain quantitative adaptive robust
control strategy, which can be viewed as a good combination of adaptive control and robust control
to obtain the best closed-loop performance of a stable closed-loop system. The research will consist
of two parts. Part one is to develop a new estimation method called frequency domain robust
estimator which can improve the frequency function estimate and quantify system uncertainties in
the frequency domain Part Two is to implement the quantitative adaptive robust controller based on
the information obtained from the robust estimator.
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Extent |
5008389 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2008-12-18
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Provider |
Vancouver : University of British Columbia Library
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Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
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DOI |
10.14288/1.0064784
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1992-11
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.