RISE-based adaptive control of electro-hydraulic servo system with uncertain compensation

Author:

Yang Xiaohan1,Cui Yinghao2,Yuan Zhanhang34,Hang Jie3

Affiliation:

1. Institute of Information Technology, Information Engineering University, Zhengzhou 450002, China

2. School of Mechanical & Electronic Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China

3. School of Automation Science and Electrical Engineering, Beihang University, Beijing 100191, China

4. China Nuclear Power Engineering Co. LTD, Beijing 100840, China

Abstract

<abstract> <p>Electro-hydraulic servo system (EHSS) plays an important role in many industrial and military applications. However, its high-performance tracking control is still a challenging mission due to its nonlinear system dynamics and model uncertainties. In this paper, a novel adaptive robust integral method of the sign of the error (ARISE) with extended state observer (ESO) is proposed. Firstly, the nonlinear mathematical model of typical EHSS with modeling uncurtains and uncertain nonlinear is established. Then, ESO is used to estimate the state and lumped disturbance, of which the unknown parameter estimations can be updated by the novel adaptive law. Results shows that the novel controller achieves better tracking performance in maximum tracking error, average tracking error and standard deviation of the tracking error.</p> </abstract>

Publisher

American Institute of Mathematical Sciences (AIMS)

Subject

Applied Mathematics,Computational Mathematics,General Agricultural and Biological Sciences,Modeling and Simulation,General Medicine

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