Adaptive Neural Observer-Based Nonsingular Super-Twisting Terminal Sliding-Mode Controller Design for a Class of Hovercraft Nonlinear Systems  

基于自适应神经网络观测器的气垫船非线性系统的非奇异超扭曲终端滑模控制器设计

作　　者：Hamede Karami Reza Ghasemi 

机构地区：[1]Department of Electrical Engineering,University of Qom,Qom 3716146611,Iran

出　　处：《Journal of Marine Science and Application》2021年第2期325-332,共8页船舶与海洋工程学报（英文版）

摘　　要：Designing a controller to stabilize maneuvering hovercrafts is an important challenge in amphibious vehicles.Hovercrafts are implemented in several applications,such as military missions,transportation,and scientific tasks.Thus.to improve their performance,it is crucial to control the system and compensate uncertainties and disruptions.In this paper,both classic and intelligent approaches are combined to design an observer-based controller.The system is assumed to be both controllable and observable.An adaptive neural network observer with guaranteed stability is derived for the nonlinear dynamics of a hovercraft,which is controlled via a nonsingular super-twisting terminal sliding-mode method.The main merits of the proposed method are as follows:(1) the Lyapunov stability of the overall closed-loop system,(2) the convergence of the tracking and observer errors to zero,(3) the robustness against uncertainties and disturbances,and(4) the reduction of the chattering phenomena.The simulation results validate the excellent performance of the derived method.

关 键 词：HOVERCRAFT Neural network OBSERVER Terminal sliding mode Nonlinear system NONSINGULAR Super twisting 

分 类 号：U674.943[交通运输工程—船舶及航道工程]