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多输入多输出非线性系统的间接自适应模糊跟踪控制

杜贞斌 胡寿松   

  1. 南京航空航天大学 自动化学院，南京 210016
  • 收稿日期:2004-09-02 修回日期:2004-11-16 出版日期:2006-01-31 发布日期:2006-01-31

Indirect Adaptive Fuzzy Tracking Control for MIMO Nonlinear Systems

DU Zhen-bin, HU Shou-song   

  1. College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2004-09-02 Revised:2004-11-16 Online:2006-01-31 Published:2006-01-31

被引次数

3

摘要： 针对多输入多输出非线性系统，把自适应模糊控制和自适应模糊辨识结合起来，提出了一种间接自适应模糊控制方案。由跟踪误差和辨识误差给出了参数调节规律，两种误差同时调节参数改善了系统性能。应用推广的模糊逻辑系统来估计多维未知函数，补偿器可抵消模糊逼近误差和外部扰动。控制方案保证了系统的稳定性，实现了跟踪。

关键词:

多输入多输出非线性系统, 自适应模糊控制, 辨识, 跟踪控制

Abstract:

Combining the adaptive fuzzy control with the adaptive fuzzy identification, this paper presents an indirect adaptive fuzzy control scheme for MIMO nonlinear systems. By using the tracking error and the identification error, the parameter adjusting laws are derived. Both errors improve the performance of the system by regulating the parameters. Extended fuzzy logic systems are used to estimate the multidimensional unknown functions, and the compensator eliminates fuzzy approximation errors and external disturbances. The control scheme guarantees the system stability and attains tracking. Simulation results demonstrate that the control scheme is effective.

Key words:

MIMO nonlinear systems, adaptive fuzzy control, identification, tracking control