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浙江师范大学 精密机械研究所,浙江 金华,321004
纸质出版日期:2014-03-25
移动端阅览
尹晓红,杨灿,阚君武等. 基于神经动力学的轮式移动机器人跟踪与稳定统一控制[J]. 光学精密工程, 2014,22(3): 670-678
YIN Xiao-hong, YANG Can, KAN Jun-wu etc. Unified control of tracking and stabilization for WMR based on bio-inspired neurodynamics[J]. Editorial Office of Optics and Precision Engineering, 2014,22(3): 670-678
为了对轮式移动机器人(WMR)进行光滑、鲁棒、稳定的轨迹跟踪控制
分析了生物激励神经动力学原理
研究了非线性模型预测控制策略
提出了一种基于神经动力学思想的模型预测终端控制方法。首先
针对传统控制方法存在的初始速度跳变问题
利用神经动力学在信息处理方面的优良特性
设计了神经动力学控制模块;然后
根据模型预测控制原理给出了一个优化控制模块;最后
设计了终端域和线性反馈终端控制器来保证系统的全局渐近稳定性。仿真结果表明:利用所设计的控制方法进行曲线跟踪时
被控WMR系统收敛到参考轨迹的时间可从12 s降到5 s
初始线速度/角速度分别从[-3
4] m/s和[-5
6] rad/s 缩小到[0
2] m/s和[-3
3] rad/s
且系统输出有界光滑
使WMR在完成轨迹跟踪的同时实现了全局渐进稳定。由于文中核心算法的推导过程不受WMR运动学模型限制
故该研究结论亦可应用于其他结构的移动机器人。
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