网络控制系统结构下的非线性系统建模与仿真

针对非线性系统往往具有不确定性,结构复杂、建模困难和不适于网络条件下仿真研究的问题,提出了一种网络控制系统结构下非线性系统建模与仿真的方法.在对弹簧连接的双倒立摆耦合非线性系统模型及其通信网络进行Matlab/Simulink模块化建模的基础上,利用鲁棒控制器将对象模型的不确定性和网络时延的不确定性进行了综合处理.仿真结果表明,该方法不仅降低了非线性系统建模的复杂性,而且为研究网络控制系统结构下非线性系统的动态特性提供了条件.

Modeling and Simulation of Nonlinear System Under Networked Control System Structure

A method based on modeling and simulation of a nonlinear system under a networked control system structure was proposed according to the nonlinear systems with uncertainties,complex structure,modeling difficulty and hard simulation study under networks. On the basis of Matlab/Simulink modularization modeling of two inverted pendulums coupled by a spring and communication networks,the uncertainties of the plant system and network-induced delays were disposed by a robust controller synthetically. The simulation results show that the proposed method not only reduces the complexity of nonlinear system modeling,but also provides the basis for the research of a nonlinear system having a networked control system structure.