摘要
研究具有变时延的中立型控制系统的渐近稳定性,利用三重Lyapunov泛函构造改进型的LyapunovKrasovskii泛函,并引入少量自由权矩阵和利用交互凸组合等有效估计泛函导函数上界,基于线性矩阵不等式(LMI)建立保守性较小的渐近稳定性判据.所得结论易于借助Matlab工具箱LMI进行验证.
The asymptotic stability for neutral system with interval time‐varying delays has been studied .Based on triple functional technique and choosing one improved Lyapunov‐Krasovskii functional ,few free‐weighting matrices are introduced and reciprocal convex technique is used to estimate the derivative of Lyapunov‐Krasovskii functional .One less conservative criterion on asymptotic stability will be presented via linear matrix inequalities (LMIs) ,which can be easily checked by resorting to LMI in Matlab Toolbox .
出处
《合肥学院学报(自然科学版)》
2014年第4期1-6,共6页
Journal of Hefei University :Natural Sciences
基金
国家自然科学基金项目(61172135)
江苏省自然科学基金项目(BK201212211)资助
关键词
中立型系统
时变时延
渐近稳定性
三重积分泛函
线性矩阵不等式(LMI)
neutral system
time-varying delay
asymptotic stability
triple integral Lyapunovfunctional
linear matrix inequality (LMI)