基于RBF-ARX模型的预测控制在液位系统中的应用  

Predictive Control Based on RBF-ARX model Applied in a Level Control System

作　　者：任林[1] 

机构地区：[1]中机国际工程设计研究院有限责任公司,湖南长沙410007

出　　处：《计算机测量与控制》2012年第1期81-84,共4页Computer Measurement &Control

摘　　要：针对单容液位系统紊流时的非线性特征,研究了基于RBF-ARX模型预测控制策略控制单容液位系统;讨论RBF-ARX模型结构的选取,模型参数辨识,RBF参数优化,基于RBF-ARX模型的预测控制策略等问题;模型的仿真结果,证实了RBF-ARX模型在非线性系统建模和辨识中的有效性;同基于全局线性ARX模型的预测控制器和PID控制器相比较,基于此模型的预测控制取得了优异的控制效果。This paper focuses on control of liquid-level system involving turbulent flow in a single water tank device by using predictive control based on RBF-ARX model.Emphasis is put on the design of the structure of RBF-ARX model,identification,parameter optimization,predictive control based on RBF-ARX,etc.The results of simulation studies finally show the effectiveness of RBF-ARX model for the modeling and identification of nonlinear systems.And predictive control based on this model has prefect performance,compared with predictive control based on global ARX model and PID.

关 键 词：预测控制 液位系统 非线性系统 RBF-ARX模型 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]