Liu Pin-Lin
Department of Automation Engineering Institute of Mechatronoptic System, Chienkuo Technology University, Changhua 500, Taiwan, ROC.
ISA Trans. 2016 Jan;60:2-11. doi: 10.1016/j.isatra.2015.10.019. Epub 2015 Nov 16.
This study investigates the delay-dependent robust absolute stability analysis for uncertain Lurie systems with interval time-varying delays of neutral type. First, we divide the whole delay interval into two segmentations with an unequal width and checking the variation of the Lyapunov-Krasovskii functional (LKF) for each subinterval of delay, much less conservative delay-dependent absolute and robust stability criteria are derived. Second, a new delay-dependent robust stability condition for uncertain Lurie neutral systems with interval time-varying delays, which expressed in terms of quadratic forms of linear matrix inequalities (LMIs), and has been derived by constructing the LKF from the delayed decomposition approach (DDA) and integral inequality approach (IIA). Finally, three numerical examples are given to show the effectiveness of the proposed stability criteria.
本研究针对具有中立型区间时变延迟的不确定Lurie系统,研究了依赖延迟的鲁棒绝对稳定性分析。首先,我们将整个延迟区间划分为两个宽度不等的子区间,并检查每个延迟子区间的Lyapunov-Krasovskii泛函(LKF)的变化,从而得到保守性低得多的依赖延迟的绝对和鲁棒稳定性准则。其次,通过延迟分解方法(DDA)和积分不等式方法(IIA)构造LKF,得到了一个关于具有区间时变延迟的不确定Lurie中立系统的新的依赖延迟的鲁棒稳定性条件,该条件以线性矩阵不等式(LMI)的二次形式表示。最后,给出了三个数值例子来说明所提出的稳定性准则的有效性。