Adaptive vibration control for flexible satellite with output constraint and unknown control direction

被引：23

作者：

Ji, Ning ^{[1
]}

Liu, Jinkun ^{[1
]}

机构：

[1] Beihang Univ, Sch Automat Sci & Elect Engn, Room E1103,New Main Bldg,XueYuan Rd 37, Beijing 100191, Peoples R China

来源：

JOURNAL OF THE FRANKLIN INSTITUTE-ENGINEERING AND APPLIED MATHEMATICS | 2020年 / 357卷 / 15期

基金：

中国国家自然科学基金;

关键词：

NONLINEAR-SYSTEMS; NEURAL-CONTROL; MANIPULATOR; TIME;

D O I：

10.1016/j.jfranklin.2020.08.035

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The focus of this study is the output constraint and unknown control direction problem in flexible satellites. The satellite investigated here is composed of two symmetrical flexible solar panels and a centrebody. The system is described as a distributed parameter system modelled as partial differential equations (PDEs) due to the elastic displacements it contains. Furthermore, to make the actuator more stable, barrier Lyapunov function (BLF) is used to realize the output constraint on the centrebody. A Nussbaum function is introduced to establish a control scheme that stabilizes the system with unknown control direction, where all the signals of the closed-loop system can be proved to be uniformly bounded. A radial basis function neural network is employed to approximate the uncertain disturbance acting on the centrebody. The proposed control laws are validated by a series of simulations. (C) 2020 The Franklin Institute. Published by Elsevier Ltd. All rights reserved.

引用

页码：10600 / 10625

页数：26

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