灵活关节机器人的固定时间自适应动态事件触发控制,具有规定的性能和时间延迟
1School of Mechanical Engineering, Guizhou University, Guiyang 550025, China; Guizhou Mountain Agricultural Machinery Research Institute, Guiyang 550007, China.
ISA transactions
|July 5, 2023
概括
本研究介绍了灵活关节机器人的动态事件触发控制策略,确保尽管时间延迟,规定的跟踪性能. 拟议的方法保证了固定时间稳定性,没有Zeno行为,通过模拟验证.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制理论 控制理论
- 应用数学 应用数学 应用数学
背景情况:
- 灵活关节机器人带来复杂的动态和控制挑战.
- 时间延迟和未知的系统动态阻碍了精确的机器人控制.
- 在机器人系统中,实现规定的性能和稳定性至关重要.
研究的目的:
- 为n-link灵活关节机器人开发一个动态事件触发的控制策略.
- 确保规定的跟踪性能和解决时间延迟.
- 为了实现固定时间稳定,而没有Zeno行为.
主要方法:
- 一个自适应的固定时间波器被设计来减轻"差异性爆炸".
- 引入了一个给定时间规定的性能方法.
- 一个辅助系统和Lyapunov-Krasovskii功能补偿了输入和全状态延迟.
- 神经网络处理未知的机器人动态.
- 设计了一个动态事件触发控制器.
主要成果:
- 闭环系统表现出固定时间稳定性.
- 他们成功地避免了Zeno的行为.
- 模拟证实了拟议的控制方案的有效性.
结论:
- 拟议的动态事件触发控制策略有效地解决了控制具有时间延迟的灵活关节机器人的挑战.
- 该方法确保了规定的跟踪性能,并实现了固定时间稳定性.
- 该方法通过模拟结果得到验证,表明其实际适用性.
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