【作者】 薛安克； 蒋楠；

【Author】 Xue Anke, Jiang Nan (Automation Department, Hangzhou Institute of Electronics Engineering,Hangzhou,310037,P.R.China)

【机构】 杭州电子工业学院自控系；

【摘要】 本文研究一类存在外界干扰的不确定性时滞系统的多目标鲁棒控制问题。在Riccati不等式的基础上,给出了鲁棒保性能H∞不确定性时滞系统的定义。然后以性能指标上界最小为优化命题设计状态反馈控制器,使得闭环系统不仅对容许的参数不确定性以及时变时滞保持渐近稳定,而且具有给定H∞干扰衰减度γ以及保性能上界最优。最后辅以数值实例和相应仿真实验结果。更多还原

【Abstract】 The paper is concerned with the design of robust controller for uncertain time-varying delay systems with bounded parameter uncertainties and disturbance. Based on Riccati inequality approach, the definition of robust guaranteed cost systems with γ disturbance attenuation H∞ performance is presented. Then, the design approach of a state feedback controller for optimizing the guaranteed cost is proposed. The close-loop system we designed satisfies a given γ disturbance attenuation H∞ performance and provides a guaranteed cost and keeps stability for all admissible uncertainties. Finally an example is given to demonstrate our results.更多还原