电液非线性系统模型跟随自适应控制的离散非线性参考模型方法  

Adaptive Model Following Control of Electrohydraulic Nonlinear Systems Using Discrete Nonlinear Reference Model

作　　者：张剑丰[1] 刘白雁[1] 

机构地区：[1]武汉科技大学机械工程及自动化学院,武汉430081

出　　处：《机床与液压》2005年第9期98-100,共3页Machine Tool & Hydraulics

基　　金：湖北省教育厅科学基金资助项目(2002A01014);湖北省机械传动与制造工程重点实验室开放基金资助项目(2003A08)

摘　　要：针对电液伺服非线性系统这一类仿射非线性系统的模型跟随自适应控制(AMFC),提出了通过构造与被控对象具有相同非线性特性的离散非线性参考模型,并借助于仿射变换和非线性反馈的方法来实现对该系统的AMFC,通过分析和仿真说明了这种AMFC系统能够确保被控对象准确跟随参考模型的输出,且仿真的结果令人满意。A new implementation of adaptive model following control （AMFC） scheme for some kinds of electrohydraulic servo nonlinear systems was presented by using discrete nonlinear reference models. The design of the discrete nonlinear reference models which hold the main nonlinearities of the controlled plants, and the linearization of the discrete nonlinear models by using affine transformations and a nonlinear state feedback transformations were discussed. Analysis and simulations show that the output of the reference models can be followed exactly by the controlled plants when using the proposed AMFC scheme, and the consequences of simulations are satisfactory.

关 键 词：离散非线性参考模型 模型跟随自适应控制 非线性系统 电液伺服系统 

分 类 号：TH137[机械工程—机械制造及自动化] TP273[自动化与计算机技术—检测技术与自动化装置]