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一类随机非线性系统的自适应模糊控制 预览

Adaptive Fuzzy Control for a Class of Stochastic Nonlinear Systems
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摘要 研究了一类具有外部扰动的随机非线性系统的自适应跟踪控制问题.在非线性系统随机扰动和外部扰动是同时发生的.通过设计Lyapunov函数,外部扰动问题可以解决.利用反推技术和模糊逻辑系统的逼近能力,提出一种新的自适应控制方案.该方案保证了闭环系统的所有信号一致有界,并且跟踪误差收敛到原点的小邻域内. In this paper, we study the adaptive tracking control problem for a class of stochastic nonlinear systems with external disturbances. Stochastic disturbances and external disturbances occur simultaneous ly in nonlinear systems. By designing the Lyapunov function, the external disturbance problem can be solved. A new adaptive control scheme is proposed by using the backstepping technique and the approxi marion ability of the fuzzy logic system. The scheme ensures that all signals of the closed loop system are uniformly bounded and the tracking error converges into the small neighborhood of the origin.
作者 葛莹莹 GE Ying ying (Department of Mathematics and Systems Science,Shandong University of Science and Technology, Qingdao Shandong 2GG590, China)
出处 《德州学院学报》 2018年第4期4-11,47共9页 Journal of Dezhou University
基金 国家自然科学基金(61402265)
关键词 外部扰动 随机非线性系统 自适应模糊控制 external disturbance stochastic nonlinear system adaptive fuzzy control
作者简介 葛莹莹(1993),女,山东菏泽人,硕士研究生,研究方向:模糊控制理论.
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