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基于后退和预测控制方法的低功率船只的路径跟踪
Yong Liu1, Zongxuan Li1, Jun Liu1
1Navigation College, Dalian Maritime University, Dalian, China.
Science progress
|August 30, 2023
概括
本研究引入了一种新的控制策略,用于低功率的船只,通过将其转换为航向控制来改善路径跟踪. 该方法增强了杆优化,并减少了杆幅度,以实现更高效的导航.
科学领域:
- 海洋工程 海洋工程是指海洋工程.
- 控制系统理论 控制系统理论
- 机器人技术 机器人技术 机器人技术
背景情况:
- 低功率的船只在路径上面临挑战,原因是干扰造成的侧滑角度.
- 准确的状态估计对于有效控制船舶航向和运动至关重要.
研究的目的:
- 开发一种先进的控制策略,用于执行不足的船舶轨道跟踪.
- 为了提高航向控制的准确性和优化轮运动.
- 减轻外部干扰和内部不确定性对船舶航行的影响.
主要方法:
- 一个非线性观察者在一个后退的方法转换后面的路径向方向控制.
- 模型预测控制 (MPC) 用于方向控制和优化.
- 线性扩展状态观测器 (LESO) 技术估计了未测量的状态,如曲率和干扰.
- 一个反向触角函数用于平滑的参考方向角度切换,以最大限度地减少轮幅度.
主要成果:
- 集成控制系统有效地管理侧滑角度,提高路径跟踪精度.
- 通过估计关键状态和干扰,LESO提高了MPC控制器的准确性.
- 反接函数成功地减少了在路点过渡期间的轮幅度.
- 模拟实验验证了拟议的控制设计的稳定性和可靠性.
结论:
- 拟议的后退方法与MPC和LESO相结合,为不充分执行的船舶轨道提供了一个强大的解决方案.
- 该方法有效地解决了外部干扰和内部不确定性带来的挑战.
- 该策略优化了控制,从而使船舶导航更加有效和稳定.
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