Adaptive fuzzy controller design for dynamic positioning system of vessels

被引：88
作者：
Hu, Xin [1 ]
Du, Jialu [1 ]
Shi, Jiwei [1 ]
机构：
[1] Dalian Maritime Univ, Sch Informat Sci & Technol, Dalian, Liaoning, Peoples R China
来源：
APPLIED OCEAN RESEARCH | 2015年 / 53卷
基金：
中国国家自然科学基金;
关键词：
Dynamic positioning; Parameter uncertainties; Disturbance uncertainties; Adaptive fuzzy systems; Vectorial backstepping;
D O I：
10.1016/j.apor.2015.07.005
中图分类号：
P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
This paper develops an adaptive fuzzy controller for the dynamic positioning (DP) system of vessels with unknown dynamic model parameters and unknown time-varying environmental disturbances. The controller is designed by combining the adaptive fuzzy system with the vectorial backstepping method. An adaptive fuzzy system is employed to approximate the uncertain term induced by unknown dynamic model parameters and unknown time-varying environmental disturbances. It is theoretically proved that the proposed adaptive fuzzy DP controller can make the vessel be maintained at the desired values of its position and heading with arbitrary accuracy, while guaranteeing the uniform ultimate boundedness of all signals in the closed-loop DP control system of vessels. Simulation studies with comparisons on a supply vessel are carried out, and the results illustrate the effectiveness of the proposed control scheme. (C) 2015 Elsevier Ltd. All rights reserved.
引用
收藏
页码：46 / 53
页数：8
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