动态不确定多输入多输出系统的变结构鲁棒控制

本文仅利用输入输出数据给出了一种动态不确定多输入多输出系统的变结构控制器设计机制，控制系统的设计中引入了一个严格正实的模型．应用适当逻辑切换的状态变量滤波器实现变结构控制．证明了所提方案能保证全局输出有界稳定并能实现滑模控制和渐近跟踪参考模型的输出．该设计方案对结构不确定性具有一定的鲁棒性．仿真结果表明了所提方案的有效性．

Varible Structure Robust Control for Uncertain MIMO Dynamic Systems

A desigh scheme of variable structure control for uncertain MIMO systems which uses only the input and output measurements is presented in this paper. A strictly positive-real model is in troduced into the control system. The state variable filters with proper logic switchings is used to per form the variable structure control. It is proved that a sliding mode control can be achieved and the global stability can be guaranteed. And the tracking error tends to zero exponentially. The design scheme is shown to be robust to structured and unstructured uncertainties. Simulation results show the effectiveness of the proposed algorithm.