四旋翼无人机系统的整体终端滑动模式容错控制
Ngoc P Nguyen1, Phongsaen Pitakwachara2
1Department of Mechanical Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand.
Scientific reports
|May 11, 2024
概括
本研究引入了一种使用无人机系统集成终端滑动模式控制器的主动容错控制方案. 这种先进的方法通过解决故障和干扰来提高无人机的安全性和性能.
科学领域:
- 机器人和控制系统 机器人和控制系统
- 航空航天工程 航空航天工程
- 耐故障控制控制的控制方式
背景情况:
- 无人驾驶飞行器 (UAV) 容易受到传感器/执行器故障和外部干扰的影响,从而危及运营安全和可靠性.
- 现有的控制策略经常与执行器和和同时故障条件作斗争.
- 强大的耐故障控制对于自主无人机操作至关重要.
研究的目的:
- 为无人机开发一个主动故障耐受性控制 (FTC) 方案.
- 解决包括和,干扰和传感器/执行器故障在内的挑战.
- 提高无人机飞行控制系统的稳定性和可靠性.
主要方法:
- 四旋翼无人机的状态空间建模.
- 对传感器故障进行辅助状态的增强系统的开发.
- 适应式滑动模式观察器的设计用于故障估计.
- 实现一个完整的终端滑动模式容错控制器,用于高度和态度.
- 使用级联比例积分导数 (PID) 控制器进行位置控制.
主要成果:
- 使用自适应滑动模式观察器精确估计执行器和传感器故障.
- 有效的高度和态度调节,尽管故障和干扰.
- 与模拟中的现有控制算法相比,拟议的FTC计划的性能优越.
- 成功集成故障估计与集成终端滑动模式控制器.
结论:
- 拟议的主动耐故障控制方案在故障条件下管理无人机系统方面表现出显著的有效性.
- 集成终端滑动模式控制器,加上自适应观察器,提供强大的控制高度和态度调节.
- 模拟结果验证了这种方法在无人机故障耐受性方面的优越性.
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