基于非线性扩展状态观察者的非线性伸展状态观察者的人类形指的整体滑动模式控制
Ling Zhao1, Meiqin Peng2, Zhuojun Li2
1State Key Laboratory of Precision Measurement Technology and Instruments, Tianjin University, Tianjin, 300072, China; State Key Laboratory of Fluid Power and Mechatronic Systems, Zhejiang University, 310027, Hangzhou, China.
ISA transactions
|July 17, 2024
概括
这项研究引入了使用气动人工肌肉 (PAMs) 对人形手指的新控制策略. 该方法提高了复杂任务的关节运动控制稳定性和准确性.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制系统工程 控制系统工程
- 生物机械工程 生物机械工程
背景情况:
- 由于合干扰,人类形指通常在关节运动控制中的稳定性和准确性方面扎.
- 这种限制影响了机器人手的复杂抓取和操纵任务的执行.
研究的目的:
- 为由气动人工肌肉 (PAMs) 驱动的人形手指提出一种新的控制策略.
- 目标是实现稳定和准确的关节运动控制,克服合干扰.
- 为了提高手指关节运动控制的稳定状态性能.
主要方法:
- 开发了一个非线性扩展状态观察器 (NESO) 来估计和补偿合干扰.
- 一个集成的滑动模式控制器 (ISMC) 设计用于精确的关节运动控制.
- 使用利亚普诺夫的方法,数学证明了NESO和ISMC的趋同和稳定性.
主要成果:
- 实验验证证明了拟议的控制策略的有效性.
- NESO成功地观察并补偿了人类形指的合干扰.
- ISMC实现了稳定和准确的关节运动控制,改善了稳定状态的性能.
结论:
- 拟议的控制策略结合了NESO和ISMC,显著提高了人形指关节运动控制的稳定性和准确性.
- 这种方法有效地解决了PAM驱动系统中合干扰所带来的挑战.
- 这些发现对于推进人类形手在复杂操纵任务中的能力至关重要.
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