Robust Compound Observers Design for Lipschitz Nonlinear Systems with Unknown input disturbance

摘要：

In this paper,we present a new concept of the robust compound observer for Lipschitz nonlinear system with unknown input disturbance,which can simultaneously estimate the system states and unknown input disturbances.The robust compound observer is designed by using the structure principle of the general unknown input observer,and the conditions for the existence of the robust compound observer are established.Combined with LMI methods,the designing freedoms are released,and LMI existence condition and some verification are given for the compound observers which can asymptotically estimate the system state and unknown input disturbance to any desired accuracy.The presented robust compound observer matrixes are calculated using Matlab LMI toolbox to make the difficult nonlinear observer design problem an easy task.Numerical simulation results are presented to validate the approach and the robustness to the system nonlinearity and uncertainty.

关键词： the robust compound observer LMI Lipschitz nonlinear systems state and unknown input disturbance estimation

作者: ZHAO Jin SHEN Zhong-Yu Gu Xing-Sheng

作者单位: School of Electrical & Automation Engineering,Nanjing Normal University,Nanjing,210042,China School of Information Science & Engineering,East China University of Science & Technology,Shanghai,2

会议类型: 国际会议

会议名称: International Conference on Modelling,Identification and Control(模拟、鉴定、控制国际会议)

会议地点: 上海

会议语种:英文

在线出版日期: 2008-06-29（万方平台首次上网日期，不代表论文的发表时间）