Practical trajectory tracking of random Lagrange systems

Practical trajectory tracking of random Lagrange systems
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随机拉格朗日系统的实用轨迹跟踪

DOI:
10.1016/j.automatica.2019.04.006
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发表时间:
2019-07
期刊:
影响因子:
6.4
通讯作者:
Peng Shi
Peng Shi
中科院分区:
计算机科学2区
文献类型:
--
作者:
Zhaojing Wu;Hamid Reza Karimi;Peng Shi

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研究了受二阶矩过程扰动的拉格朗日系统的轨迹跟踪问题。对于随机微分方程,提出了噪声对状态实用稳定性的概念及其判据。利用向量反推方法设计了一种状态反馈跟踪控制,将Slotine-Li控制器和“PD+”控制器作为特例。作为自适应控制的自然推广,对自适应控制进行了深入的研究,提出了一种实用的等价原理。对于上述两种情况,得到了闭环系统全局噪声状态稳定性的结果,并在一种实用的参数整定原则下实现了实际的轨迹跟踪。通过对一个非线性基准系统的仿真,验证了所提出的新控制策略的有效性和优越性。
The problem of trajectory tracking is considered in this paper for Lagrange systems disturbed by second moment processes. For random differential equations, the concept of noise-to-state practical stability and its criterion are proposed. A state-feedback tracking control is designed by using vectorial backstepping method, which covers Slotine–Li controller and “PD+” controller as special cases. As natural extension, adaptive control is further researched, and a practical equivalence principle is presented. For the above two cases, results of global noise-to-state stability of closed-loop systems are obtained, and practical trajectory tracking can be achieved under a practical parameters-tuning principle. Simulations are conducted for a nonlinear benchmark system to illustrate the effectiveness and advantages of the proposed new control strategies.
DOI: 10.1109/cdc.1999.833302
发表时间: 1999-12
期刊: Proceedings of the 38th IEEE Conference on Decision and Control (Cat. No.99CH36304)
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