Robust stability of Sampled-Data Control Systems
Because the inter-sample behavior can be considered,the lifting technique now becomes the unique method for design and analysis of sampled-data systems.However,when we consider the robust stability problem by using the small gain theorem,the state transition operator is zero,and the current lifting algorithms can not be used directly.The lifting computation formulas for the case of the robust stability analysis are derived in detail.Further study shows that when the lifting technique is used for robust stability analysis,its result is conservative.A new discretization method for robust stability analysis is proposed in the paper,and it is not conservative when the condition of the small gain theorem is used.Two examples are given here to illustrate the above ideas.
sampled-data control system lifting technique robust stability conservative
LIU Yanwen GUO Qingyong Wang Yuanhui Zhang Songtao
College of Automation,Harbin Engineering University,Harbin 150001,China
国际会议
The 33th Chinese Control Conference第33届中国控制会议
南京
英文
4222-4227
2014-07-28(万方平台首次上网日期,不代表论文的发表时间)