题目：Output feedback exponential stabilization for a wave equation with boundary control input
地点: 数理楼数学院 366 办公室
摘要：Essentially speaking, if there is no uncertainty in systems, the feedback control is not necessary in many situations. In the past three decades, many different approaches have been developed to deal with disturbance such as the internal model principle for output regulation, the sliding mode control for systems with the worse uncertainties. However,most of research works that are dedicated to the?exponential stabilization of uncertain systems are based on the state feedback. In this talk, I will present an output feedback exponential stabilization design method for two unstable wave equations: one has boundary unstable item, the other has internal unstable velocity recirculation item, where both systems, modeled typically the vibration control of physical systems,suffer from the internal uncertainty and external disturbance.Using two displacement measurements only, although the system is not exactly observable, the state observer and disturbance estimator are explicitly constructed,an observer-estimator based controller is desigend to make the resulting closed-loop system stable,exponentially.
报告人简介：周华成，2015年博士毕业于中国科学院大学, 之后前往以色列特拉维夫大学 电气工程学院从事博士后研究工作，迄今为止发表20余篇论文，其中包括 IEEE transaction automatic control、Autamatic、SICON、RNC、JDE 等著名控制杂志和数学杂志。曾在2014年获得中国科学院院长特别奖。 目前的研究主要兴趣为分布参数系统的控制理论，特别是对系统的不确定性的处理。