摘要
升力反馈减摇鳍是一种新型的减摇鳍,系统的减摇模型具有复杂的非线性针对具有阻尼非线性和惯性非线性特性的升力反馈减摇鳍的减摇模型,将其中的非线性特性等等效为广义扰动,设计了一种简单的滑模变结构控制器-比例切换滑模控制器,在讨论了比例切换滑模控制的存在条件和比例切换滑模控制的可达性的基础上,进行了系统仿真研究.仿真结果显示该控制器对具有非线性阻尼力矩和非线性恢复力矩的船舶横摇运动具有很好的减摇效果和良好的快速性,一般变结构控制存在的抖动现象不明显.
The Lift-feedback Fin stabilizer is a new type fin stabilizer. Its rolling model has complex nonlinear factors in high sea conditons. In the paper, nonlinear factors such as nonlinear damp factor, resuming factor and so on arc all regarded as general disturbance. Based upon general disturbance, a simple variable structure controller named Sliding Model Proportion Switch Controller (SMPSC) is designed for lift - feedback fin stabilizer. After discussing its reachability and its existence condition, simulation is done. The result shows that the controller is effective to decrease roll motion with nonlinear damp and nonlinear resuming, and control signals vibrating is very little.
出处
《哈尔滨工程大学学报》
EI
CAS
CSCD
2003年第4期410-414,共5页
Journal of Harbin Engineering University
关键词
鳍角反馈
升力反馈
比例切换
滑模控制器
减摇鳍
广义扰动
angle-feedback
lift-feedback
proportion switch
sliding model controller
fin stabilizer
general disturbance
