全局滑模控制方法在喷水推进操舵系统中的应用  

Global Sliding Mode Control Approach for the Steering System of the Water-Jet Propulsion Device

作　　者：龚征华[1] 田震[2] 熊文[1] 李俊舟[1] 李刚强[1] 袁景淇[2] 

机构地区：[1]中国船舶工业集团公司第708研究所喷水推进技术重点实验室,上海200011 [2]上海交通大学自动化系,上海200240

出　　处：《上海交通大学学报》2017年第6期693-697,共5页Journal of Shanghai Jiaotong University

基　　金：国家自然科学基金重点项目(61233004)

摘　　要：介绍了喷水推进操舵控制系统的工作原理,利用系统辨识方法得到某船舶喷水推进器的操舵控制对象的传递函数模型.设计了干扰观测器和全局滑模控制器,并证明了全局滑模态的存在和闭环系统的渐进稳定性.仿真结果表明,观测器对外部干扰具有较高的估计精度,基于全局滑模控制方法的操舵系统兼具良好的跟踪性能和较强的鲁棒性.Water-jet propulsion is an advanced propulsion technique for high speed ships. The robustness of its steering control system is an essential demand due to various disturbances. In this contribution, the mechanism transfer function model of the water-jet steering propulsion system is established first. Then, model based disturbance observer is designed and a global sliding mode controller is developed. Furthermore, the existence of global sliding mode and the asymptotically stability of the closed-loop system are proved. Simulation results are presented to demonstrate the high precision of the disturbance observer, good tracking performances and strong robustness of the control strategy.

关 键 词：喷水推进 操舵控制系统 电液压伺服系统 干扰观测器 全局滑模控制 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]