一个改进的非单元自适应式超扭转滑动模式控制器用于四旋翼飞机
Nardos Belay Abera1, Chala Merga Abdissa1, Lebsework Negash Lemma1
1School of Electrical and Computer Engineering, Addis Ababa University, Addis Ababa, Ethiopia.
PloS one
|October 10, 2024
概括
这项研究引入了四旋翼系统的新型自适应性超扭转滑动模式控制,显著提高了跟踪精度和干扰排斥. 先进的控制器确保稳定的飞行性能,即使在未知的外部干扰.
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
- 应用数学 应用数学 应用数学
背景情况:
- 四旋翼系统容易受到外部干扰和模型不确定性的影响,影响跟踪性能.
- 现有的滑动模式控制器往往会受到聊和处理未知的干扰极限的限制.
研究的目的:
- 开发一种非单一的自适应性超扭转滑动模式控制 (SMC),用于增强四旋翼追踪.
- 为了减轻聊天和提高对外部干扰和不确定性的稳定性.
主要方法:
- 利用牛顿 - 夸特尼翁形式主义为无奇点的四旋翼动态模型.
- 开发了一种新的SMC,使用超级扭曲算法来减少聊天.
- 用于控制器增益调整的使用粒子群集优化 (PSO).
- 对于未知的干扰极限,应用了基于Lyapunov稳定性的自适应规则.
主要成果:
- 实现了跟踪错误的显著减少:0.1% (滚动),0.05% (俯冲) 和2.2% (高度).
- 证明优异的干扰排斥与最小的稳定状态误差:0.01° (滚动),0.02° (俯冲) 和0.001° (yaw).
- 在模拟中表现优于现有的最先进的滑动模式控制器.
结论:
- 拟议的控制器为四旋翼无人机提供了强大的跟踪和有效的干扰排斥.
- 控制器的性能表明,在无人机中实时实现的可行性.
- 这种进步有助于更可靠,更精确的四旋翼飞行控制系统.
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