摘要
研究非线性多输入多输出离散系统的量化H∞动态输出反馈控制器设计问题.首先采用扇形界方法来描述对数量化器的量化误差,并且将量化问题转化为不确定系统的控制器设计问题.然后对于所有容许的非线性,设计动态输出反馈控制器使得闭环系统渐近稳定并具有给定的H∞性能约束,通过求解线性矩阵不等式求出控制器参数.最后,数值仿真表明设计方法的有效性.
In this paper,the quantized H∞ dynamic output feedback controller design problem is investigated for nonlinear discrete-time MIMO systems.Firstly,the sector bound approach is used to describe the quantization error,and the problem is turned to the controller design problem of uncertainty systems.Secondly,the existence conditions for designing a dynamic output feedback controller such that,for all possible sector nonlinearity,the closed-loop system is asymptotically stable and satisfies the prescribed H∞ performance constraint,and controller parameters are designed by solving a linear matrix inequality（LMI）.Lastly,a numerical example is provided to demonstrate the validity of the proposed design approach.
出处
《闽江学院学报》
2009年第5期29-34,共6页
Journal of Minjiang University
基金
福建省自然科学基金资助项目(2007J0018)
