针对一类具有状态非线性不确定性的线性时滞系统,基于Lyapunov稳定性理论,利用线性矩阵不等式(LMI)方法,讨论了该类时滞系统的记忆与无记忆复合H∞状态反馈控制器的设计问题。在非线性不确定性满足增益有界条件下,得到了该类时滞系统的满足鲁棒H∞性能的一个充分条件。通过求解一个线性矩阵不等式-LMI,即可获得鲁棒H∞控制器。
Based on Lyapunov stability theory and by means of linear matrix inequality (LMI), combined memory and memoryless state feedback robust H∞ controller design is considered for linear time - delay with a certain kind of nonlinear uncertainty. On condition that the nonlinear uncertain functions are gain bounded, a sufficient condition which satisfied the robust H∞ performance is presented. By solving a linear matrix inequality ( LMI), the robust H∞ controller can be obtained. An illustrative example shows the effectiveness of the proposed method.