Journal
IET CONTROL THEORY AND APPLICATIONS
Volume 9, Issue 10, Pages 1595-1607Publisher
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/iet-cta.2014.1308
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Funding
- National Science Foundation of China [61025016, 61473183, 61221003, 61471275]
- Program of Shanghai Subject Chief Scientist [14XD1402400]
- Key program of Hubei Provincial Department of Education [Z20081102, D20141104]
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This study addresses the finite-frequency robust feedback controller design problem against actuator faults for linear parameter-varying systems. First, a general model of actuator faults is presented. Then, sufficient conditions for the existence of the state-feedback controller are obtained by using generalised Kalman-Yakubovich-Popov lemma and projection lemma, which guarantee that the closed-loop system satisfies robustness performance in a finite-frequency domain and is stable for both faults free and actuator faults. In addition, by introducing a state feedback gain, the non-convexity conditions of the output-feedback gain are derived. An iterative linear matrix inequality algorithm is proposed in this study to get the solution. The performances of the proposed reliable controller schemes are illustrated by two examples.
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