Adaptive Output Feedback Control of Nonlinear Time-Delay Systems With Application to Chemical Reactor Systems

作者:Jia, Xianglei*; Chen, Xinkai; Xu, Shengyuan; Zhang, Baoyong; Zhang, Zhengqiang
来源:IEEE Transactions on Industrial Electronics, 2017, 64(6): 4792-4799.
DOI:10.1109/TIE.2017.2668996

摘要

This paper considers the problem of global adaptive stabilization for strict feedback nonlinear systems with time delay and parameter uncertainty. By designing a delay-independent reduced-order observer with two dynamic gains, we propose a universal adaptive control strategy to reduce the conservatism of the growth conditions imposed on nonlinearities. With the help of Lyapunov-Krasovskii functionals, stability analysis is subtly conducted. Finally, the proposed controller is applied to a chemical reactor system to illustrate the usefulness of our results.