| EPSRC Reference: |
GR/M94106/01 |
| Title: |
MULTI-PERIODIC REPETITIVE CONTROL |
| Principal Investigator: |
Owens, Professor DH |
| Other Investigators: |
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| Department: |
Automatic Control and Systems Eng |
| Organisation: |
University of Sheffield |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 April 2000 |
Ends: |
31 March 2003 |
Value (£): |
144,384
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| EPSRC Research Topic Classifications: |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
No relevance to Underpinning Sectors |
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Summary on Grant Application Form |
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Many signals appearing in engineering are multi-periodic, i.e., superpositions of finitely many periodic signals. Such signals are dominant in electrical power generation an transmission, power converters, engines, various vibrations or sea-waves. Repetitive control has been developed starting in the 80s to achieve tracking and/or disturbance rejection for periodic signals. It uses an (infinite-dimensional) internal model and achieves improved control by exploiting the periodic nature of the signals. Its applicability has been limited by the requirement of periodicity, and by the computational difficulty in getting a stable closed-loop system. The program is aimed at overcoming these difficulties and making repetitive control a valuable technique in vibration suppression, control of power converters and related application areas. The main theoretical contribution will be to generalize repetitive control to multi-periodic signals and genuine MIMO systems using recent advances in dynamic stabilization of infinite-dimensional systems and the emergence of computationally efficient methods in robust control. Mechanisms which adjust the relevant frequencies in the controller in response to slow changes in the power spectrum of the external signals will also be incorporated. MATLAB-based software design tools will be developed and collaboration with GEC-Alsthom and Rolls-Royce (Filton) will provide an opportunity to evaluate the techniques.
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Key Findings |
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Potential use in non-academic contexts |
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.shef.ac.uk |