Global Output Feedback Control Of Nonlinear Time-Delay Systems With Input Matching Uncertainty And Unknown Output Function
INTERNATIONAL JOURNAL OF SYSTEMS SCIENCE(2019)
摘要
This paper studies the problem of global output feedback control for nonlinear time-delay systems with input matching uncertainty and the unknown output function, whose nonlinearities are bounded by lower triangular linear unmeasured states multiplying the unknown constant, polynomial-of-output and polynomial-of-input growth rates. By constructing a new extended state observer and skillfully combining the dynamic gain method, backstepping method and Lyapunov-Krasovskii theorem, a delay-independent output feedback controller can be developed with only one dynamic gain. It is proved that all the signals of the closed-loop system are bounded, the states of the original system and the corresponding observer converge to zero, and the estimation of input matching uncertainty converges to its actual value. Two examples demonstrate the effectiveness of the control scheme.
更多查看译文
关键词
Nonlinear time-delay systems, input matching uncertainty, output function, polynomial-of-output growth rate, polynomial-of-input growth rate
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络