Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines

Qing-chao WANG; Jian-zhong ZHANG

doi:10.1631/jzus.C0910779

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Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines

计算机与自动化 | Updated：2022-08-31

- Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines
- Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines
- 信息与电子工程前沿（英文） 2011年12卷第1期页码：25-35
- Affiliations：
  
  1.School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China
  2.SINOPEC Safety Engineering Institute, Qingdao 266071, China
- Author bio：
  
  ‡Corresponding Author
- Funds：
- DOI：10.1631/jzus.C0910779
  中图分类号：
- 收稿：2009-12-21，
  
  修回：2010-12-06，
  
  录用：2010-03-24，
  
  纸质出版：2011-01
- Accepted：
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Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines[J]. 信息与电子工程前沿（英文）, 2011,12(1):25-35.

Qing-chao WANG, Jian-zhong ZHANG. Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(1): 25-35.
Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines[J]. 信息与电子工程前沿（英文）, 2011,12(1):25-35. DOI： 10.1631/jzus.C0910779.

Qing-chao WANG, Jian-zhong ZHANG. Wiener model identification and nonlinear model predictive control of a pH neutralization process based on Laguerre filters and least squares support vector machines[J]. Frontiers of Information Technology & Electronic Engineering, 2011, 12(1): 25-35. DOI： 10.1631/jzus.C0910779.

摘要

Abstract

This paper deals with Wiener model based predictive control of a pH neutralization process. The dynamic linear block of the Wiener model is parameterized using Laguerre filters while the nonlinear block is constructed using least squares support vector machines (LSSVM). Input-output data from the first principle model of the pH neutralization process are used for the Wiener model identification. Simulation results show that the proposed Wiener model has higher prediction accuracy than Laguerre-support vector regression (SVR) Wiener models

Laguerre-polynomial Wiener models

and linear Laguerre models. The identified Wiener model is used here for nonlinear model predictive control (NMPC) of the pH neutralization process. The set-point tracking performance of the proposed NMPC is compared with those of the Laguerre-SVR Wiener model based NMPC

Laguerre-polynomial Wiener model based NMPC

and linear model predictive control (LMPC). Validation results show that the proposed NMPC outperforms the other three controllers.

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