Enlarging the domain of attraction and maximising convergence rate for delta operator systems with actuator saturation
Date
2015
Authors
Yang, H.
Zhang, L.
Shi, P.
Hua, C.
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Journal article
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International Journal of Control, 2015; 88(10):2030-2043
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Hongjiu Yang, Luyang Zhang, Peng Shi and Changchun Hua
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Abstract
In this paper, we present some new approaches to improve the feedback property of delta operator systems with actuator saturation. Both enlarging the domain of attraction and maximising the convergence rate are the desired feedback properties. The lifting technique is used to enlarge the domain of attraction for the delta operator systems subject to actuator saturation. The maximisation of convergence rate is realised by designing control gain inside a given ellipsoid. A necessary and sufficient condition is proposed for the contractive invariance of the given ellipsoid. Simulation results are provided to demonstrate the effectiveness of the developed techniques.
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© 2015 Taylor & Francis