Hammerstein Model Identification of Continuous Stirred Tank Reactor Based on Least Squares Support Vector Machines

被引：3
|
作者：
Zhang Jianzhong [1 ]
Wang Qingchao [1 ]
机构：
[1] Harbin Inst Technol, Sch Energy Sci & Engn, Harbin 150001, Peoples R China
来源：
CCDC 2009: 21ST CHINESE CONTROL AND DECISION CONFERENCE, VOLS 1-6, PROCEEDINGS | 2009年
关键词：
Hammerstein Model; Least Squares Support Vector Machines; Continuous Stirred Tank Reactor; NONLINEAR-SYSTEMS; PREDICTIVE CONTROL;
D O I：
10.1109/CCDC.2009.5191576
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A novel LSSVM-ARX Hammerstein model structure is proposed for a continuous stirred tank reactor (CSTR). LSSVM with a radial basis function (RBF) kernel is used to represent the static nonlinear block in the Hammerstein model. The dynamic linear part of the model is realized by a linear autoregression model with exogenous input (ARX). The linear model parameters and the static nonlinearity can be obtained simultaneously by solving a set of linear equations followed by singular value decomposition. Identification results of CSTR indicate that the proposed Hammerstein model has higher prediction accuracy in comparison with the traditional Hammerstein model, and it can approximate the dynamic behavior of the plant efficiently.
引用
收藏
页码：2858 / 2862
页数：5
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