In this paper, an innovative predefined‐time tracking control algorithm is proposed for high‐order nonlinear systems with control saturation and disturbance, which can directly calculate the upper bound of settling‐time by user‐defined parameters. First, a predefined‐time observer based on tracking differentiator is applied to handle the disturbance. Next, a new predefined‐time tracking control algorithm is designed using the backstepping method, and a novel auxiliary dynamic system is designed to deal with the control saturation. The stability of the closed‐loop system is analyzed applying Lyapunov function‐like method. The derivative of the virtual controller is obtained by the first‐order filter to reduce the computation burden. It is worth mentioning that, different from the exiting results, all parameters related to settling‐time in each virtual controller can be selected differently, and it can improve the flexibility of the controller design. Finally, the robustness and effectiveness of the investigated algorithm have been demonstrated by two typical numerical simulations.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.