摘要
针对不确定线性连续系统,研究了执行器失效情况下的保性能可靠控制问题.利用LMI给出了不确定线性系统对执行器故障具有渐近稳定性及可靠保性能的充分条件,进而讨论了参数不确定线性系统的保性能可靠控制器的设计问题.根据凸优化理论,给出了最优保性能可靠控制器的线性凸优化设计算法和设计步骤.采用所设计的可靠状态反馈控制器,当任意执行器出现故障时,闭环系统仍保持渐近稳定且保持原有的性能指标.
Reliable design of guaranteed cost for uncertain linear systems with actuator faults is studied. Based on LMI, the sufficient condition of asymptotic stability with guaranteed cost reliable control is given. Furthermore, the corresponding synthesis problem is developed. On the basis of convex optimization theory,the design arithmetic method and its steps about optimal guaranteed cost reliable control are provided. Using the state-feedback controller designed, the closed-loop systems can still keep asymptotically stable and guarantee performance index prescribed when any actuator failures occurre.
出处
《兰州交通大学学报》
CAS
2006年第3期77-80,共4页
Journal of Lanzhou Jiaotong University
