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摘要: 针对具有不确定性的线性定常系统,提出了考虑执行器故障的可靠跟踪控制器设计问 题.在更一般、更实际的执行器故障模型的基础上,给出了系统输出信号渐近跟踪参考输入信 号可靠跟踪控制存在的充分条件.通过求解线性矩阵不等式(LMI)完成状态反馈可靠跟踪控制 器设计.利用仿真数例验证了文中提出的设计方法的可行性,并且通过对可靠跟踪控制系统与 不考虑故障的标准跟踪控制系统的比较,进一步说明对系统进行可靠跟踪控制的必要性.Abstract: The problem of reliable tracking controller design against actuator faults is studied. For linear uncertain systems, a more practical and general model of actuator faults is presented. A sufficient condition for the existence of a reliable tracking controller is given. A state feedback reliable controller is designed by means of linear matrix inequality (LMI). A simulation example illustrates the effectiveness of the method. Comparison of a control system with the reliable tracking controller and the system without a reliable tracking controller shows the necessity of the reliable tracking control.
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Key words:
- Uncertainty /
- actuator faults /
- reliable tracking control /
- standard tracking control /
- LMI
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