Robust H∞ directional control for a sampled-data autonomous airship

A robust H ∞ directional controller for a sampled-data autonomous airship with polytopic parameter uncertainties was proposed. By input delay approach, the linearized airship model was transformed into a continuous-time system with time-varying delay. Sufficient conditions were then established base...

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Bibliographic Details
Published inJournal of Central South University Vol. 21; no. 4; pp. 1339 - 1346
Main Authors Wang, Yue-ying, Wang, Quan-bao, Zhou, Ping-fang, Duan, Deng-ping
Format Journal Article
LanguageEnglish
Published Heidelberg Central South University 01.04.2014
Subjects
Engineering
Metallic Materials
directional control
autonomous airship
Lyapunov-Krasovskii functional
sampled-data system
polytopic parameter uncertainty
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ISSN2095-2899
2227-5223
DOI10.1007/s11771-014-2071-8

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Summary:A robust H ∞ directional controller for a sampled-data autonomous airship with polytopic parameter uncertainties was proposed. By input delay approach, the linearized airship model was transformed into a continuous-time system with time-varying delay. Sufficient conditions were then established based on the constructed Lyapunov-Krasovskii functional, which guarantee that the system is mean-square exponentially stable with H ∞ performance. The desired controller can be obtained by solving the obtained conditions. Simulation results show that guaranteed minimum H ∞ performance γ =1.4037 and fast response of attitude for sampled-data autonomous airship are achieved in spite of the existence of parameter uncertainties.
ISSN:2095-2899
2227-5223
DOI:10.1007/s11771-014-2071-8