对于不确定的轮式移动机器人来说,一种新的固定时间规定的性能滑动模式控制
Van-Cuong Nguyen1, Seong Han Kim2
1Department of Artificial Intelligence and Robotics, Sejong University, Gwangjin-gu, Seoul, 05006, South Korea.
Scientific reports
|February 13, 2025
概括
这项研究引入了一种新的控制方法,用于轮式移动机器人 (WMR),以实现精确的轨迹跟踪,尽管轮子滑动,滑动和干扰. 该方法确保在固定的范围内实现快速,稳定的错误收,最大限度地减少控制信号的聊.
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
- 应用数学 应用数学 应用数学
背景情况:
- 轮式移动机器人 (WMR) 在轨迹跟踪方面面临挑战,原因是轮子滑动,滑动 (WSS) 和外部干扰.
- 现有的控制方法往往难以同时保证快速收和稳定性.
研究的目的:
- 为WMRs开发一种新的固定时间规定的性能滑动模式控制 (FPP-NFTSMC) 方法.
- 为了解决由WSS和外部干扰引起的轨迹跟踪错误.
- 确保在预定义的性能界限内,追踪错误在固定的时间内趋同.
主要方法:
- 引入新的规定的性能滑动面,将规定的性能功能 (PPF) 和非单一的快速终端滑动功能 (NFTSF) 结合起来.
- 基于拟议的滑动表面开发FPP-NFTSMC算法.
- 整合了一种统一的二级滑动模式 (USOSM) 算法,以减轻聊天和确保连续的控制信号.
- 使用利亚普诺夫稳定理论对固定时间稳定性的分析.
主要成果:
- 拟议的FPP-NFTSMC方法保证追踪错误在固定的时间内趋于零.
- 控制策略确保错误状态保持在预定义的性能限制内.
- 集成的USOSM算法有效地减少了聊天效应,提供了更流的控制信号.
- 模拟证明了该方法在干扰下跟踪直线和U形轨迹的有效性.
结论:
- FPP-NFTSMC方法为WMR中高精度轨迹跟踪提供了一个强大的解决方案.
- 该方法成功地解决了WSS和外部干扰,同时确保固定时间的融合和边界错误.
- 与传统方法相比,PPF,NFTSMC和USOSM的组合提供了更高的性能.
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