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通过LMPC-AISMC战略控制非全方位轮式移动机器人的运动/力协调轨迹跟踪控制
Minan Tang1, Kunxi Tang2, Yaqi Zhang2
1School of Automation and Electrical Engineering, Lanzhou Jiaotong University, Lanzhou, 730070, China. tangminan@mail.lzjtu.cn.
Scientific reports
|August 9, 2024
概括
本研究引入了双闭环控制系统,用于轮式移动机器人 (WMR),以改善轨迹跟踪和地面适应. 这种新的方法提高了控制精度和对干扰的稳定性.
科学领域:
- 机器人技术 机器人技术 机器人技术
- 控制系统工程 控制系统工程
背景情况:
- 非holonomic受约束的轮式移动机器人 (WMRs) 在轨迹跟踪方面面临挑战,需要增强地面适应性和姿态准确性.
- 对于在动态环境中运行的WMR来说,协调的运动/力控制至关重要.
研究的目的:
- 为WMR开发一种新的双闭环控制结构,以实现协调的运动/力控制.
- 为了提高地面适应能力,同时保持态度跟踪准确性.
主要方法:
- 外环:Laguerre函数修改模型预测控制 (LMPC) 具有优化的解决方案条件.
- 内环:自适应整体滑动模式控制 (AISMC) 与第二阶非线性扩展状态观察器 (ESO) 相结合.
- 利亚普诺夫稳定理论以保证控制器的局限性.
主要成果:
- 双闭环策略在复杂的轨迹跟踪精度方面表现出卓越的性能.
- 该系统表现出对强干扰的增强抵抗力和改进的计算及时性.
- 这样可以有效地协调控制WMR的运动和力.
结论:
- 拟议的双闭环控制策略为WMR轨迹跟踪提供了强大而高效的解决方案.
- 与ESO集成LMPC和AISMC有效地解决了WMR控制挑战.
- 通过数值模拟和实践验证来验证这些发现.
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