不确定离散系统的保性能扰动抑制方法
发布时间：2019-04-21 16:50
【摘要】：基于等价输入干扰的思想,将离散系统的外界扰动及模型不确定性均视为系统的扰动,等价到系统的输入端,提出一种不确定离散系统的保性能扰动抑制方法.采用基于内模及状态反馈的结构进行扰动抑制设计,利用李亚普诺夫方法得到控制系统的稳定性条件.并引入保性能优化指标,对控制器增益进行优化设计.仿真结果显示,该方法能够获得良好的扰动抑制效果.
[Abstract]:Based on the idea of equivalent input disturbance, the external disturbance and model uncertainty of the discrete system are regarded as the disturbance of the system, which is equivalent to the input of the system. A cost-guaranteed disturbance suppression method for uncertain discrete-time systems is proposed. The structure based on internal model and state feedback is used to design the disturbance suppression. The stability conditions of the control system are obtained by using Lyapunov method. The guaranteed cost optimization index is introduced to optimize the gain of the controller. Simulation results show that this method can achieve good disturbance suppression effect.
【作者单位】： 厦门理工学院应用数学学院;
【基金】：福建省自然科学基金项目(2016J05165,2013J01027) 厦门理工学院高层次人才项目(YKJ14030R)
【分类号】：TP273
[Abstract]:Based on the idea of equivalent input disturbance, the external disturbance and model uncertainty of the discrete system are regarded as the disturbance of the system, which is equivalent to the input of the system. A cost-guaranteed disturbance suppression method for uncertain discrete-time systems is proposed. The structure based on internal model and state feedback is used to design the disturbance suppression. The stability conditions of the control system are obtained by using Lyapunov method. The guaranteed cost optimization index is introduced to optimize the gain of the controller. Simulation results show that this method can achieve good disturbance suppression effect.
【作者单位】： 厦门理工学院应用数学学院;
【基金】：福建省自然科学基金项目(2016J05165,2013J01027) 厦门理工学院高层次人才项目(YKJ14030R)
【分类号】：TP273
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