Disturbance Observer Based Control for a class of Nonlinear Systems with uncertain exosystem

摘要：

A novel type of control scheme is proposed for a class of nonlinear systems subject to disturbance. The disturbance is generated by an exogenous system with uncertainty, which can represent the harmonic signals with modeling perturbations. A nonlinear disturbance observer is constructed for the estimation of the disturbance. The effectiveness of the method depends on the characteristics of external additional disturbance δ(t) which result from the perturbations and uncertainties in the exogenous system. More precisely, the assumptions of δ(t) ∈ L20,∞) and/or δ(t) ∈ L∞0,∞) can result in different consequents. Numerical simulations are given to demonstrate the effectiveness of the proposed control schemes.

关键词： Disturbance rejection disturbance-observerbased control uncertain exosystem global stability uniformly ultimately bounded

作者: Yuan Jiang Li Zeng Shutang Liu

作者单位: School of Control Science and Engineering Shandong University Jinan,Shandong Province,China Department of Mathematics Honghe University Mengzi,Yunnan Province,China

会议类型: 国际会议

会议名称: 2010 IEEE信息与自动化国际会议(ICIA 2010)

会议地点: 哈尔滨

会议语种:英文

页码: 1-6

在线出版日期: 2010-06-20（万方平台首次上网日期，不代表论文的发表时间）