High-Gain Observers in Nonlinear Feedback Control

非线性反馈控制中的高增益观测器

• 批准号: 1128467
• 负责人: Hassan Khalil
• 金额: $ 27.9万
• 依托单位: Michigan State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2011
• 资助国家: 美国
• 起止时间: 2011-09-01 至 2017-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1128467&HistoricalAwards=false
• 关键词: Gain; Observers; Nonlinear; Feedback; Control

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.

智力优势：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，它将解决非最小相位非线性系统的稳定和调节使用高增益观测器。非最小相位系统给反馈控制的设计带来了挑战，即使对于线性系统也是如此。这项研究将建立在首席研究员最近的研究结果的基础上，研究人员设计了使用条件伺服补偿器和使用扩展高增益观察者作为虚拟传感器的调节器。要使这些设计可行，还需要解决一些具有挑战性的技术问题。其次，该研究将解决在嘈杂环境中使用高增益观测器的挑战性问题。利用非线性增益来改变观测器在瞬态和稳态运行期间的有效增益的新设计将被开发和实验测试。更广泛的影响：该项目的一个成果将是关于非线性反馈控制中的高增益观测器的研究专著。拟议的活动将扩大代表性不足的群体的参与。密歇根州立大学的欧洲经委会有一个招收妇女和少数民族博士生的积极项目。