固定时间无碰撞无故障耐受多无人机的形成控制在执行器故障下
IEEE transactions on cybernetics
|January 29, 2024
概括
本研究介绍了多个四旋翼无人机 (UAV) 的固定时间故障耐受性控制,以确保尽管执行器故障,但仍可安全飞行. 该系统保证避免碰撞和快速融合,提高无人机的安全性和可靠性.
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) 组合的安全合作机动具有挑战性,特别是在执行器故障导致快速,不可预测的运动的情况下.
- 确保在故障条件下避免碰撞并保持形成完整性,需要强大而有效的控制策略.
研究的目的:
- 调查多个四旋翼无人机面临执行器故障的固定时间故障耐受性形成控制.
- 开发一个控制策略,确保避免碰撞和实际工程应用.
主要方法:
- 利用一个增强的固定时间观察器来估计和补偿执行器故障和干扰.
- 设计了一个基线态度控制器,命令过器和速度控制器,用于固定时间的速度跟踪.
- 开发了一个分布式的固定时间滑动模式控制器,集成了排斥潜力功能,用于形成控制和避免碰撞.
主要成果:
- 拟议的控制方案保证了固定时间的融合,以控制容错的形成和避免碰撞.
- 控制策略通过利亚普诺夫稳定性分析得到验证,并为硬件实现进行正常化.
- 该算法成功地嵌入到PX4架构中,证明了其实际有效性.
结论:
- 开发的固定时间故障耐受性控制策略有效地管理四旋翼无人机在形成飞行期间的执行器故障.
- 这种方法既能确保避免碰撞,又能在固定的时间内精确地控制形成.
- 在PX4平台上的实际实施验证了控制系统的稳定性和适用性.
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