High-Gain Observers in Nonlinear Feedback Control

智能优点：研究了利用高增益观测器设计非线性系统的输出反馈控制。这项研究将解决两个具有挑战性的问题。首先，它将利用高增益观测器解决非最小相位非线性系统的镇定和调节问题。非最小相位系统对反馈控制的设计提出了挑战，甚至对线性系统也是如此。这项研究将建立在首席研究员关于使用条件伺服补偿器设计调节器和使用扩展高增益观测器作为虚拟传感器的最新结果的基础上。要使这些设计可行，需要解决一些具有挑战性的技术问题。其次，这项研究将解决在嘈杂环境中使用高增益观察者的挑战性问题。利用非线性增益改变观测器在暂态和稳态运行时的有效增益的新设计将被开发并进行实验测试。广泛的影响：该项目的成果之一将是关于非线性反馈控制中的高增益观测器的研究专著。拟议的活动将扩大任职人数不足群体的参与。密歇根州立大学的欧洲经委会系有一个招收女性和少数族裔博士生的积极计划。

Intellectual Merit:Research is conducted on the design of output feedback control of nonlinear systems using high-gain observers. The research will tackle two challenging problems. First it will address the stabilization and regulation of non-minimum phase nonlinear systems using high-gain observers. Non-minimum phase systems pose a challenge in the design of feedback control, even for linear systems. The research will build on recent results by the principal investigator on designing regulators using conditional servocompensators and the use of extended high-gain observers as virtual sensors. There are challenging technical problems that need to be solved to make these designs feasible. Second, the research will tackle the challenging problem of using high-gain observers in a noisy environment. New designs that use nonlinear gains to change the effective gain of the observer during transient and steady-state operation will be developed and tested experimentally.Broader Impacts:One outcome of the project will be a research monograph on high-gain observers in nonlinear feedback control. The proposed activity will broaden participation of underrepresented groups. The ECE Department at Michigan State University has an active program to recruit women and minority Ph.D. students.