学术报告第201919期

报告题目：Model Based Fault Detection and Estimation for Switched Systems with Time Delays

报 告 人：Xinzhi Liu教授（加拿大滑铁卢大学）

报告时间：2019年05月15日15:00

报告地点：南一楼中311室

报告摘要:For safety-critical systems such as nuclear reactors, chemical plants and aircraft, the consequences of faults can be very serious in terms of human mortality, environmental impact and economic loss. Therefore, there is a growing need for on-line supervision and fault diagnosis to increase the reliability of such safety-critical systems. This talk discusses the problem of fault detection and estimation for switched time-delay systems. The problem is formulated in the framework of H1 filtering by incorporating a priori knowledge of the fault into the design procedure. A hybrid controller, composed of a fault estimator and an impulsive controller, is constructed. Some delay-dependent sufficient conditions are derived on the existence of the hybrid controller by using the multiple Lyapunov functional approach. In addition, based on the cone complementarity algorithm, the solutions to the parameter matrices are obtained by solving a set of linear matrix inequalities. Numerical examples are given to illustrate the effectiveness of the proposed approach.    

报告人简介:刘新芝教授现任加拿大滑铁卢大学应用数学系教授。1988年在美国德克萨斯大学阿灵顿分校获博士学位。于1990年受聘滑铁卢大学并于1994年被聘为该校终身教授。 刘新芝教授是国家教育部"长江学者奖励计划"（第三批）特聘教授，于2001年元月受聘于suncitygroup太阳集团网址。刘教授的研究方向包括:混合动力系统,非线性系统控制及稳定性,复杂网络的同步,保密通讯,传染病模型等。已发表学术论文300余篇，学术专著5部, 学术编著20余部。刘教授现任国际学术杂志"DCDIS Series A, Mathematical Analysis" 、"DCDIS Series B, Applications and Algorithms" 和"Journal of Nonlinear Systems and Applications" 的主编，并兼任多个国际学术杂志的编委。