论文标题
对未知二阶非线性系统的次优控制，并保证了全局收敛
Suboptimal Control of Unknown Second-order Nonlinear Systems with Guaranteed Global Convergence
论文作者
论文摘要
为未知时变非线性动力学的二阶系统提出了次优的主动干扰拒绝控制器（S-ADRC）。输出反馈控制器根据通过高增强观察者获得的估计的主和扩展状态变量来保证通过动态控制增益的全局收敛到最佳解决方案的附近。三个数值示例比较了应用于线性和非线性系统的拟议控制方案的性能与固定增益常规ADRC的性能以及几种基于模型的最佳和次优控制器。
A suboptimal active disturbance rejection controller (S-ADRC) is proposed for second-order systems with unknown time-varying nonlinear dynamics. The output-feedback controller guarantees a global convergence to the vicinity of an optimal solution by means of dynamic control gains, based on the estimated main and extended state variables obtained through a high-gain observer. Three numerical examples compare the performance of the proposed control scheme applied to linear and nonlinear systems with that of a fixed-gain conventional ADRC as well as several model-based optimal and suboptimal controllers.
