|Adaptive Neural Dynamic Surface Control for a General Class of Stochastic Nonlinear Systems with Time Delays and Input Dead-zone
Wen-Jie Si*, Xun-De Dong, and Fei-Fei Yang
International Journal of Control, Automation, and Systems, vol. 15, no. 5, pp.2416-2424, 2017
Abstract : "This paper investigates adaptive tracking control for a more general class of stochastic nonlinear timedelay
systems with unknown input dead-zone. For the considered system, the drift and diffusion terms contain
time-delay state variables. In control design, Lyapunov-Krasovskii functionals are employed to handle unknown
time-delay terms. Then, unknown nonlinear functions are approximated by RBF neural networks, and the dynamic
surface control (DSC) technique is utilized to avoid the problem of explosion of complexity. At last, based on
the Lyapunov stability theory, a robust adaptive controller is designed to guarantee that all closed-loop signals are
bounded in probability and the tracking error converges to a small neighborhood of the origin. The simulation
example is presented to further show the effectiveness of the proposed approach."
Keyword : "Dynamic surface control, input dead-zone, neural adaptive control, stochastic nonlinear systems, unknown time delays."