Double-command feedforward-feedback control of a nonlinear plant

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

A design approach is proposed for feedforward-feedback control systems. The basis of the proposed approach is a steady state control law which maintains the desired control output of the system and is employed as the feedforward controller. With this feedforward controller, for a wide class of systems, the stability of the control system is proved if the feedback controller is a gain with an arbitrarily high value; that is, the only limit for the feedback (transient) control command is the actuator's practical limit. Moreover, in continuous domain, there will be no overshoot. In this article, the proposed method has been applied to a catalytic stirred tank reactor (CSTR) to control the output concentration through adjusting the flow of two valves simultaneously and resulted in an excellent control response.

Original languageEnglish
Pages (from-to)1372-1376
Number of pages5
JournalKorean Journal of Chemical Engineering
Volume27
Issue number5
DOIs
Publication statusPublished - 2010

Fingerprint

Feedforward control
Feedback control
Controllers
Feedback
Control systems
Actuators

Keywords

  • Control Equilibrium Point
  • CSTR
  • Feedforward
  • Lyapunov
  • Process Control

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)

Cite this

Double-command feedforward-feedback control of a nonlinear plant. / Mohammadzaheri, Morteza; Chen, Lei.

In: Korean Journal of Chemical Engineering, Vol. 27, No. 5, 2010, p. 1372-1376.

Research output: Contribution to journalArticle

@article{25e88ddce2b94d358d1fcca9281e82c1,
title = "Double-command feedforward-feedback control of a nonlinear plant",
abstract = "A design approach is proposed for feedforward-feedback control systems. The basis of the proposed approach is a steady state control law which maintains the desired control output of the system and is employed as the feedforward controller. With this feedforward controller, for a wide class of systems, the stability of the control system is proved if the feedback controller is a gain with an arbitrarily high value; that is, the only limit for the feedback (transient) control command is the actuator's practical limit. Moreover, in continuous domain, there will be no overshoot. In this article, the proposed method has been applied to a catalytic stirred tank reactor (CSTR) to control the output concentration through adjusting the flow of two valves simultaneously and resulted in an excellent control response.",
keywords = "Control Equilibrium Point, CSTR, Feedforward, Lyapunov, Process Control",
author = "Morteza Mohammadzaheri and Lei Chen",
year = "2010",
doi = "10.1007/s11814-010-0258-8",
language = "English",
volume = "27",
pages = "1372--1376",
journal = "Korean Journal of Chemical Engineering",
issn = "0256-1115",
publisher = "Springer New York",
number = "5",

}

TY - JOUR

T1 - Double-command feedforward-feedback control of a nonlinear plant

AU - Mohammadzaheri, Morteza

AU - Chen, Lei

PY - 2010

Y1 - 2010

N2 - A design approach is proposed for feedforward-feedback control systems. The basis of the proposed approach is a steady state control law which maintains the desired control output of the system and is employed as the feedforward controller. With this feedforward controller, for a wide class of systems, the stability of the control system is proved if the feedback controller is a gain with an arbitrarily high value; that is, the only limit for the feedback (transient) control command is the actuator's practical limit. Moreover, in continuous domain, there will be no overshoot. In this article, the proposed method has been applied to a catalytic stirred tank reactor (CSTR) to control the output concentration through adjusting the flow of two valves simultaneously and resulted in an excellent control response.

AB - A design approach is proposed for feedforward-feedback control systems. The basis of the proposed approach is a steady state control law which maintains the desired control output of the system and is employed as the feedforward controller. With this feedforward controller, for a wide class of systems, the stability of the control system is proved if the feedback controller is a gain with an arbitrarily high value; that is, the only limit for the feedback (transient) control command is the actuator's practical limit. Moreover, in continuous domain, there will be no overshoot. In this article, the proposed method has been applied to a catalytic stirred tank reactor (CSTR) to control the output concentration through adjusting the flow of two valves simultaneously and resulted in an excellent control response.

KW - Control Equilibrium Point

KW - CSTR

KW - Feedforward

KW - Lyapunov

KW - Process Control

UR - http://www.scopus.com/inward/record.url?scp=77958016858&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=77958016858&partnerID=8YFLogxK

U2 - 10.1007/s11814-010-0258-8

DO - 10.1007/s11814-010-0258-8

M3 - Article

VL - 27

SP - 1372

EP - 1376

JO - Korean Journal of Chemical Engineering

JF - Korean Journal of Chemical Engineering

SN - 0256-1115

IS - 5

ER -