Title :
Robust adaptive control for a class of uncertain switched nonlinear systems with application to near space vehicle
Author :
Qiang, Zhang ; Qingxian, Wu ; Changsheng, Jiang ; Yufei, Wang
Author_Institution :
Sch. of Electr. Eng., Univ. of Jinan, Jinan, China
Abstract :
This paper is concerned with a robust adaptive tracking control for a class of uncertain switched nonlinear systems under arbitrary switching signals. Firstly, neural networks are employed to compensate for unknown uncertainties in switched nonlinear systems. Then, adaptive backstepping method is used to design the stabilizing and continuous controller. Using the Common Lyapunov Function approach, we prove that the tracking error can converge to a small neighborhood of the desired trajectory in the finite-time. Finally, by the use of the design methods to simulate the flexible-wing near space vehicle, the simulation results are presented to show the effectiveness of the proposed scheme.
Keywords :
Lyapunov methods; adaptive control; aerospace components; compensation; continuous systems; control nonlinearities; control system synthesis; neurocontrollers; nonlinear control systems; robust control; space vehicles; time-varying systems; uncertain systems; Lyapunov function approach; adaptive backstepping method; arbitrary switching signals; continuous controller design; flexible-wing near space vehicle; neural networks; robust adaptive tracking control; stabilizing controller design; uncertain switched nonlinear systems; uncertainty compensation; Backstepping; Lyapunov methods; Nonlinear systems; Robustness; Switches; Uncertainty; Vectors; Adaptive Neural Networks; Backstepping; Common Lyapunov Function; Near Space Vehicle; Switched Nonlinear Systems;
Conference_Titel :
Control Conference (CCC), 2012 31st Chinese
Conference_Location :
Hefei
Print_ISBN :
978-1-4673-2581-3