报告题目:Active Disturbance Rejection Control to Stabilization for Multi-Dimensional Wave Equation with Boundary Control Matched Disturbance( 不确定高维波动方程的镇定：自抗扰控制方法)
报告人：郭宝珠 研究员
报告时间：下午2:30
报告地点：广B106
题目：Active Disturbance Rejection Control to Stabilization for Multi-Dimensional Wave Equation with Boundary
Control Matched Disturbance( 不确定高维波动方程的镇定：自抗扰控制方法)
报告人：郭宝珠研究员（杰青获得者、南非院士, 南非金山大学计算与应用数学学院讲座教授）
地点：浙工大屏峰校区广B106
时间：2015年6月11日(周四) 下午2:30
摘要： In this talk, we consider boundary stabilization for a multi-dimensional wave equation with boundary control matched
disturbance that depends on both time and spatial variables. The active disturbance rejection control (ADRC) approach is adopted in investigation. An extended state observer is designed to estimate the disturbance based on an infinite number of ordinary differential equations obtained from the original multi-dimensional system by infinitely many test functions. The disturbance is canceled in the feedback loop together with a collocated stabilizing controller. All subsystems in the closed-loop are shown to be asymptotically stable. In particular, the time varying high gain is first time applied to a system described by the partial differential equation for complete disturbance rejection purpose and the peaking value reduction caused by the constant high gain in literature. The overall picture of the ADRC in dealing with the disturbance for multi-dimensional partial differential equation is presented through this system. The numerical experiments are carried out to illustrate the convergence and effect of peaking value reduction.
报告人简介: 郭宝珠，1984年在中国科学院系统科学研究所获硕士学位；1991年在香港中文大学数学系获博士学位。1991-1993在中国科学院系统科学研究所做博士后；2000年至今在中国科学院数学与系统科学研究院任研究员。1999年中国科学院“百人计划”入选者， 2003年国家杰出青年基金获得者，2013年获南非院士。曾任法国国家计算机与自动化研究所一级访问教授，法国里昂大学访问教授，荷兰特文特大学访问教授，南非金山大学计算与应用数学学院讲座教授。郭宝珠教授是国际控制论名家，他的主要研究领域涉及控制论、数学物理方程等。