一类MIMO非线性大系统基于H∞ 跟踪的分散自适应输出反馈模糊控制

针对一类状态不可测的MIMO不确定非线性大系统,提出一种基于H∞跟踪的分散自适应输出反馈模糊控制器.主要工作有:1)通过对观测误差向量进行滤波来确保严格正实条件成立,使得提出的反馈与自适应机制可以执行;2)利用模糊系统提出一种适用于一般非线性大系统基于H∞跟踪的分散自适应模糊控制方案;3)在统一的框架下处理了控制器奇异性.闭环大系统被证明足稳定的,且输出误差具有H∞跟踪性能.仿真结果验证了控制器设计的有效性.

H∞ tracking-based decentralized adaptive output feedback fuzzy control for a class of large-scale MIMO nonlinear systems

A novel H∞ tracking-based decentralized adaptive output feedback fuzzy controller is proposed for a class of
large-scale MIMO uncertain nonlinear systems whose states are not measurable. By the filtering of the observation error
vector, the strictly positive-real condition is guaranteed to hold such that the proposed feedback and adaptation mechanisms
are implementable. By using fuzzy systems, the proposed H∞ tracking-based decentralized adaptive fuzzy control scheme
is applicable to a relatively general large-scale nonlinear systems. The controller singularity is addressed under a united
framework. It is proved that the closed-loop large-scale systems are stable, and the output errors have H∞ tracking
performance. Simulation results show the effectiveness of the controller design.