【作者】 张端金； 张洛花； 苗启；

【Author】 Zhang Duanjin,Zhang Luohua,Miao Qi School of Information Engineering,Zhengzhou University,Zhengzhou 450052,P.R.China

【机构】 郑州大学信息工程学院；

【摘要】 研究Delta算子描述的线性离散不确定系统在圆形区域极点约束下的容错控制问题。基于矩阵范数理论,给出在执行器失效情况下Delta算子系统鲁棒D稳定的充分条件;利用线性矩阵不等式(LMI)方法,导出状态矩阵和输入矩阵均存在不确定性时,Delta算子系统的鲁棒容错控制设计方法。基于LMI的可行解,得到状态反馈控制律的参数化表示。数值算例说明了该方法的有效性。更多还原

【Abstract】 The fault-tolerant control problem of delta operator formulated linear uncertain systems with regional pole assignment is considered,which the addressed uncertainties are in both state matrix and input matrix.A sufficient condition of robust D-stability for delta operator systems with actuator failures is presented using the matrix norm theory. In terms of a linear matrix inequality(LMI) approach,a sufficient condition for the solvability of this problem is derived. When this LMI is feasible,the parameterized representation of the desired state feedback controller is also provided.A numerical example is given to show the effectiveness of the proposed method.更多还原