吉林大学学报(信息科学版) ›› 2019, Vol. 37 ›› Issue (4): 382-389.

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时变时滞奇异摄动Lurie系统的稳定性分析

孙凤琪   

  1. 吉林师范大学数学学院,吉林四平136000
  • 出版日期:2019-07-24 发布日期:2019-12-16
  • 作者简介:孙凤琪( 1968— ) ,女,吉林桦甸人,吉林师范大学教授,主要从事时滞奇异摄动控制系统研究,( Tel) 86-13604346519(E-mail) 1092748497@ qq. com。
  • 基金资助:
    高校基本科研基金资助项目( N100406010)

Stability Analysis of Singularly Perturbed Lurie Systems with Time-Varying Delay#br#

SUN Fengqi   

  1. Department of Mathematical,Jilin Normal University,Siping 136000,China
  • Online:2019-07-24 Published:2019-12-16

摘要: 为改善在实际的Lurie 控制系统中的滞后和摄动现象所导致的系统振动和不稳定问题,在鲁棒稳定性理论基础上,笔者分析了含有不确定性结构的时变时滞奇异摄动Lurie 系统在两种扇形区域[0,V]和[V1,V2]内的稳定性问题,通过选取新的李雅普诺夫泛函数,结合引理、交叉项界定方法,推出时滞依赖和时滞独立两种情形下新的绝对稳定性判据。数值样例证明了该结果的可行性和优越性。

关键词: Lurie 系统, 强绝对稳定性, 奇异摄动时变时滞系统, 时滞依赖, 时滞独立

Abstract: In order to improve the system vibration and instability caused by the delay and perturbation phenomena in actual Liurie control system,based on the theory of robust stability theories,Lurie systems with time-varying delay uncertainty are discussed. Combined with lemma and cross terms defined method,the new stability criterions of time-delay dependent and time-delay independent are deduced in two sector regions:[0,V]and [V1,V2]by constructing a new Lyapunov functional. The feasibility and superiority are illustrated by the numerical example.

Key words: Lurie systems, strongly absolute stability, singularly perturbed systems with time-delay, delaydependent, delay-independent

中图分类号: 

  • TP13