Technical communique: A note on the robustness of high-gain-observer-based controllers to unmodeled actuator and sensor dynamics
Technical communique: A note on the robustness of high-gain-observer-based controllers to unmodeled actuator and sensor dynamics
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DOI：
10.1016/j.automatica.2005.04.008
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发表时间：
2005-10
期刊：
影响因子：
6.4
通讯作者：
H. Khalil
中科院分区：
文献类型：
--
作者：
H. Khalil
结果表明，结合全局有界状态反馈控制器和高增益观测器的非线性输出反馈镇定控制器对未建模的快速执行器和传感器动态是鲁棒的。相对于状态反馈下标称闭环系统的动态，执行器和传感器的动态需要足够快，但它们不需要比观测器的动态更快。
It is shown that a nonlinear output feedback stabilizing controller, which combines a globally bounded state feedback controller with a high-gain observer, is robust with respect to unmodeled fast actuator and sensor dynamics. The actuator and sensor dynamics need to be sufficiently fast relative to the dynamics of the nominal closed-loop system under state feedback, but they need not be faster than the observer dynamics.