通过多个多维泰勒网络通过输出约束的机器人系统的自适应性全球预定义时间控制
Wenjing He1, Yuqun Han2, Yukun Shi1
1State Key Laboratory of Chemical Resource Engineering, and the College of Information Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China.
ISA transactions
|February 8, 2025
概括
本研究介绍了对具有输出约束的机器人系统的自适应性全球预定义时间控制. 新型控制器确保了约束的满足,并实现了快速跟踪错误的融合,提高了机器人系统的稳定性.
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
- 适应性系统 适应性系统
背景情况:
- 机器人系统经常面临输出约束的挑战,这可能会限制性能和安全.
- 在遵守这些限制的同时,在预定义的时间内实现精确的控制是一个重要的控制工程问题.
研究的目的:
- 为具有输出约束的n-link机器人系统开发一种可适应的全球预定义时间控制策略.
- 为了确保输出约束永远不会被违反,并且跟踪错误在预定义的时间内趋同.
主要方法:
- 利用屏障函数将受约束系统转换为不受约束的系统.
- 在一个自适应多重多维泰勒网络 (MMTN) 控制框架中内置命令过和补偿系统.
- 开发了一种基于多开关的自适应MMTN控制器.
主要成果:
- 拟议的控制器保证了输出约束永远不会被违反.
- 在预定义的时间内实现了跟踪错误的全球收.
- 通过对双链路机器人系统的模拟来证明控制器的有效性.
结论:
- 基于多个开关的自适应MMTN控制器确保了具有输出限制的机器人系统的全球稳定性.
- 建议的控制策略是可行的,有效地解决复杂的机器人控制挑战.
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