In this paper, the robust adaptive tracking control problem is investigated for nonlinear time-delay systems with changing system powers. Different from the existing results, the discussed system has complicated nonlinear growing conditions and various uncertainties including the control coefficients, parameters, and external disturbances. By introducing a new robust adaptive control method, a dynamic-gain based adaptive tracking controller is constructed to guarantee the boundedness of the closed-loop systems. Besides, the tracking error can be adjusted with a satisfied precision. Finally, simulation examples are given to verify the proposed theory.

中文翻译：

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具有一般形式的不确定时滞非线性系统的一种新的鲁棒自适应跟踪策略

本文研究了具有变化系统功率的非线性时滞系统的鲁棒自适应跟踪控制问题。与已有结果不同的是，所讨论的系统具有复杂的非线性生长条件和各种不确定性，包括控制系数、参数和外部干扰。通过引入一种新的鲁棒自适应控制方法，构造了一种基于动态增益的自适应跟踪控制器来保证闭环系统的有界性。此外，可以以满意的精度调整跟踪误差。最后，给出了仿真例子来验证所提出的理论。