摘要目前,带有执行器饱和的时滞切换系统由于其丰富的工程背景和重要的理论研究价值越来越受到越来越多的学者和专家的关注。不过有时因为扰动而造成系统性能下降甚至直接导致系统不稳定的情况越来越多,所以非常有必要进一步加强系统自身的鲁棒性和对扰动的抗干扰能力。因此本文通过切换Lyapunov函数方法来研究并设计带有执行器饱和的离散时滞随机切换系统的系统稳定性,扰动容忍度和扰动的抑制能力。同时通过线性矩阵不等式(LMI)进行求解和仿真来验证结论的。66198
毕业论文关键词:时滞切换系统 执行器饱和 稳定性 扰动容忍性 扰动抑制 性能 LMI
毕业设计说明书(论文)外文摘要
Title H∞ control for discrete switched systems with time delay and saturating actuator
Abstract Nowadays, the widespread application in engineering and the high value in academic research of discrete switched systems with time delay and saturating have attracted attention of an increasing number of scholars and experts. Nevertheless, owing to the situation in terms of the disturbance frequently leads to the declining performance or even the instability of the system, it is essential to advance the robust and the capacity of resisting disturbance of this system.As a result, in this essay,the stability ,disturbance tolerance and rejection of the discrete stochastic switched systems with time delay and saturating actuator will be designed and further investigated by adopting linear matrix inequality. Finally, the accuracy of the result will be examined with linear matrix inequality and simulation.
Keywords time delay stochastic switched systems;actuator saturation ;stability;disturbance tolerance;disturbance rejection; performance;LMI
目录
1 绪论 1
1.1 研究背景和意义 1
1.3 本文内容 5
1.4 符号说明 5
2 问题描述 7
3 具有执行器饱和的离散时滞随机切换系统的稳定性分析 9
3.1 在无扰动情况下的稳定性分析 9
3.2 实例数值仿真 13
3.3 本章总结 15
4 具有执行器饱和的离散时滞随机切换系统的扰动容忍度的分析与设计 16
4.1 最大扰动容忍度分析与设计 16
4.2 优化求解问题 19
4.3 数值仿真例子 21
4.4 本章小结 22
5 具有执行器饱和的离散时滞随机切换系统的 性能的分析与设计 24
5.1 性能 24
5.2 优化求解问题 25
5.3数值仿真例子 26
5.4 本章小结 29
6 总结与展望 30
6.1 总结 30
6.2 展望 30
致谢 31
参考文献 32
1 绪论
1.1 研究背景和意义