Adaptive Control of Time Delay Nonlinear Systems with Unknown Control Direction
In this paper, robust adaptive control is proposed for a class of time delay nonlinear systems with unknown constant control gain and control direction. The design is based on the principle of sliding mode control and the use of Nussbaum-type function in solving the problem of the completely unknown control gain. The unknown function and the upper bound of the unknown time delay term are assumed to be in the form of nonlinear functions with unknown coefficients. The uncertain time delay terms are compensated for using appropriate Lyapunov- Krasovskii functional and Youngs inequality in the design. The closed-loop control system is proved to be semi-globally uniformly ultimately bounded. Simulation results demonstrate the effectiveness of the approach.
Adaptive Control Nonlinear Systems Time-varying Delay Nussbaum-type Function
Tianping Zhang Hui Wen Qiuqin Zhu
Department of Automation, College of Information Engineering, Yangzhou University, Yangzhou 225009, China
国际会议
The 22nd China Control and Decision Conference(2010年中国控制与决策会议)
徐州
英文
2057-2062
2010-05-26（万方平台首次上网日期，不代表论文的发表时间）