降维观测器系统的鲁棒容错控制

Robust fault-tolerant control of system with reduced-order observer

对于使用降维观测器的反馈系统,基于矩阵扰动理论,将传感器故障和模型不确定性造成的参数扰动对系统的影响归结为对系统闭环矩阵的扰动,提出了使系统对传感器失效具有完整性并对非确定性参数扰动具有鲁棒性的设计方法。仿真结果表明,该方法是简单有效,具有能够达到预期的控制目标,且在正常状态下对系统性能没有不良的影响。

Based on a eigenvalue estimation theory, a design method of robust controller of model uncertainty system with sensor failures is presented by using reduced-order observer. The influence of failures and model uncertainty on the system is considered as a kind of disturbance on the closed-loop system. The method is proved to be simple and efficient.