Robust output tracking control of a class of highly uncertain non-affine nonlinear systems

被引：0

作者：

Chen, Zhenfeng ^{[1
]}

Zhang, Yun ^{[1
]}

Yang, Lingling ^{[1
]}

Zeng, Qijie ^{[1
]}

Liu, Zhi ^{[1
]}

机构：

[1] School of Automation, Guangdong University of Technology

来源：

International Journal of Advancements in Computing Technology | 2012年 / 4卷 / 21期

关键词：

Non-affine nonlinear systems; Output feedback control; Robust control;

D O I：

10.4156/ijact.vol4.issue21.72

中图分类号：

学科分类号：

摘要：

In this paper, robust output tracking control design is proposed for a general class of uncertain non-affine nonlinear systems. The design employs feedback linearization, coupled with a high-gain filter which is built to estimate the feedback linearization error. Under the condition that only the system output is available for feedback, robust output tracking control is developed to compensate for the error with employment of the estimation. The proposed control is robust to uncertainties in modeling the nonlinearities of the plant, and of great significance in engineering practice due to its linear control architecture, high dynamic performance and clear physical meanings. In addition, fixedpoint problem, which is usually met in feedback linearization design for non-affine nonlinear system, is solved without overly restrictive conditions. Simulation results show the effectiveness of the approach.

引用

页码：607 / 614

页数：7

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