This paper investigates the adaptive tracking control for stochastic high-order nonlinear systems with actuator faults and time-varying input delay. A novel fault-tolerant control scheme with ensured tracking performance is proposed and analyzed. More specially, the prescribed finite-time performance (PFTP) function is integrated into the controller design to achieve the prescribed transient performance. To deal with the problem of complexity explosion for the controller design, the extended high-order error compensation mechanism combined with the dynamic surface control approach is presented, which possesses enhanced robustness and broader applicability compared to existing methods. Additionally, an efficient high-order auxiliary system (HOAS) is constructed to handle the system inputs limited by faults and time delays concurrently. By combining the PFTP function with the asymptotic tracking control, the proposed control scheme first ensures that the tracking errors reach the prescribed range within the prescribed time and then achieve asymptotic convergence in probability. Finally, two simulation examples are employed to demonstrate the effectiveness of the designed control scheme.
扫码关注我们
求助内容:
应助结果提醒方式:
