通过离散时间快速终端滑动模式的预测方法添加机器人操纵系统的最佳轨迹跟踪控制
Bin Guo1, Jiawei Feng1, Yuzhong Zhong1
1College of Electrical Engineering, Sichuan University, Chengdu, 610065, China.
ISA transactions
|September 4, 2025
概括
这项研究为面对干扰的机器人操纵器提出了一种基于观察者的新控制策略. 该方法增强了轨迹跟踪,并通过模拟和实验验证了系统的稳定性.
科学领域:
- 机器人技术
- 控制系统工程
- 应用数学
背景情况:
- 机器人操纵器需要精确的轨迹跟踪工业应用.
- 外部负载干扰和未知的摩擦扭矩降低了控制性能.
- 现有的控制方法往往与复杂的,现实世界的动态不确定性作斗争.
研究的目的:
- 在外部干扰下开发机器人操纵器的先进控制策略.
- 为了提高轨迹跟踪的准确性和稳定性.
- 解决当前控制方法在处理一次性不确定性的局限性.
主要方法:
- 一个新的离散时间延长状态观察器的设计,用于估计一次性干扰.
- 开发一个快速终端滑动模式预测最佳控制 (FTSMPC) 战略.
- 集成预测输入扭矩控制器以优化达到阶段和平滑的扭矩输出.
主要成果:
- 扩展状态观察者通过理论分析保证了观察误差的局限性.
- 拟议的FTSMPC战略显著提高了轨道跟踪性能.
- 实现更光滑的输入扭矩配置,减少系统磨损并提高效率.
结论:
- 基于观察者的FTSMPC策略为具有干扰的机器人操纵器提供了卓越的控制性能.
- 该方法在模拟和实验验证方面都表现出强度和有效性.
- 这种方法在不确定的环境中为精确的机器人控制提供了可靠的解决方案.
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