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欠驱动水面船舶航迹跟踪自抗扰控制

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Keywords: 欠驱动船舶,自抗扰控制(ADRC),航迹跟踪,扩张状态观测器

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Abstract:

设计一种基于积分Backstepping的船舶航向非线性滑模控制器,实现船舶在大幅度改向操纵运动中航向准确快速跟踪控制。在采用Bech船舶操纵运动数学模型精确描述船舶大幅度改向运动性能的基础上,利用反演法设计航向改变控制算法,引入积分控制环节消除模型参数不确定性和风、浪、流等干扰影响,借助Lyapunov稳定性定理证明控制系统渐近稳定。对实船的仿真对比可知,本文设计的船舶航向控制器性能优越,控制舵角合理,控制输出航向对本船参数摄动及外界干扰不敏感,具有较强的鲁棒性.

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