Study on the Parameters Estimation Based on Interval Observer

摘要：

The method using interval observers to estimate parameters have been veri.ed in linear system and simple nonlinear cooperative system (elements of Jacobian matrix on the non-diagonal are non-negative). We can see the concept about cooperative system in references, but it has some limitations for reality system. This paper tries to use interval observer method for more general nonlinear system which is not a cooperative system. The Jacobian matrix of the observer can meet the condition of cooperative system by properly choosing the gain of the observer, hence the observer becomes a monotonic observer. By using this method, one can determine whether the parameter interval contains the value of the system parameter. The feasibility of this idea is illustrated by the simulation example using a nonlinear dynamic system model.

关键词： Nonlinear dynamic system Parameters interval Interval observer Fault diagnosis

作者: Zhe Wang Zetao Li Boutaieb Dahhou

作者单位: Electrical Engineering College,Guizhou University, Guiyang 550025 CNRS; LAAS; 7 Avenue du Colonel Roche, F-31077 Toulouse Cedex 4, France, and with Universit′e de Tou

会议类型: 国际会议

会议名称: The 24th Chinese Control and Decision Conference (第24届中国控制与决策学术年会 2012 CCDC)

会议地点: 太原

会议语种:英文

页码: 1642-1644

在线出版日期: 2012-05-23（万方平台首次上网日期，不代表论文的发表时间）