摘要
对一类具有不确定性的非线性系统，根据滑模控制原理，提出了模糊逻辑控制的一种新设计，由于使用了适当的模糊逻辑切换，避免了滑模控制所固有的颤动现象，通过构造李雅普诺夫函数，证明了算法的全局稳定性，且跟踪误差收敛到零的一个邻域，仿真结果表明，本文设计的模糊控制，对模型不确定性和外来扰动具有较强的鲁棒性和良好的跟踪性能。
A scheme of fuzzy logic control for a class of nonlinear systems is presented.The design isbased on the method of sliding mode control.Some uncertainties of the controlled system is consid-ered.Since the proper fuzzy logic switchings are applied, the chattering phenomenon which is inherentto a sliding mode control ls avoided. The algorithm is proven to be globally stable by constructing Lya-punov filnction,with tracking errors converging to a neighborhood of zero. Simulation results showthat the control system exhibits strong robustness against system model uncertainties and external distur-bances.
出处
《东南大学学报（自然科学版）》
EI
CAS
CSCD
1995年第3期79-85,共7页
Journal of Southeast University：Natural Science Edition
基金
国家自然科学基金
江苏省自然科学基金
关键词
非线性系统
模糊控制
鲁棒性
模糊逻辑
nonlinear Systems
fuzzy control
stability
robustness/sliding mode control
