In this article, an improved prescribed performance adaptive control strategy is developed to handle the output tracking control problem for a class of nonlinear high‐order systems with actuator faults. The actuator faults considered include the bias fault and gain fault models. A technique of adding a power integrator is utilized to deal with the controller design problem of high‐order system. With the help of backstepping technology and the classic adaptive control, an output tracking control scheme is proposed, which can guarantee that all signals of the closed‐loop system are bounded and the tracking error converges to a finite‐time predetermined region. Finally, the feasibility of the presented control method is tested through the simulation results.

中文翻译：

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一类具有时限规定性能的高阶非线性系统的鲁棒自适应容错跟踪控制

在本文中，开发了一种改进的规定性能自适应控制策略来处理一类带有执行器故障的非线性高阶系统的输出跟踪控制问题。考虑的执行器故障包括偏置故障和增益故障模型。利用增加功率积分器的技术来解决高阶系统的控制器设计问题。借助Backstepping技术和经典的自适应控制，提出了一种输出跟踪控制方案，该方案可以确保闭环系统的所有信号都受到限制，并且跟踪误差收敛到有限的预定时间区域。最后，通过仿真结果验证了所提出控制方法的可行性。