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A feedforward approach to mid-ranging control

Hägglund, T. LU (2021) In Control Engineering Practice 108(March). p.1-10
Abstract

Mid-ranging control is a control strategy that is used when there are more than one manipulated variable available to control a process variable. Mid-ranging control handles the redundancy by coordinating the roles of the different manipulated variables. The most common approach is to introduce valve position controllers (VPC) that control the relations between the manipulated variables. In this paper, some drawbacks of the VPC approach are pointed out, and a new control strategy that overcomes these drawbacks is presented. Instead of using valve position controllers, the new strategy uses feedforward control to coordinate the manipulated variables. Design methods for both the new strategy and the VPC controller are presented in the... (More)

Mid-ranging control is a control strategy that is used when there are more than one manipulated variable available to control a process variable. Mid-ranging control handles the redundancy by coordinating the roles of the different manipulated variables. The most common approach is to introduce valve position controllers (VPC) that control the relations between the manipulated variables. In this paper, some drawbacks of the VPC approach are pointed out, and a new control strategy that overcomes these drawbacks is presented. Instead of using valve position controllers, the new strategy uses feedforward control to coordinate the manipulated variables. Design methods for both the new strategy and the VPC controller are presented in the paper.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Feedforward control, Mid ranging, Mid-ranging control, Process control, Valve position control
in
Control Engineering Practice
volume
108
issue
March
article number
104713
pages
1 - 10
publisher
Elsevier
external identifiers
  • scopus:85098129490
ISSN
0967-0661
DOI
10.1016/j.conengprac.2020.104713
project
Decentralized Control Structures
PID Control
language
English
LU publication?
yes
id
7fbf7cdf-8b1b-450e-b40d-299bf908bea2
date added to LUP
2021-01-04 10:59:49
date last changed
2021-04-15 13:48:27
@article{7fbf7cdf-8b1b-450e-b40d-299bf908bea2,
  abstract     = {<p>Mid-ranging control is a control strategy that is used when there are more than one manipulated variable available to control a process variable. Mid-ranging control handles the redundancy by coordinating the roles of the different manipulated variables. The most common approach is to introduce valve position controllers (VPC) that control the relations between the manipulated variables. In this paper, some drawbacks of the VPC approach are pointed out, and a new control strategy that overcomes these drawbacks is presented. Instead of using valve position controllers, the new strategy uses feedforward control to coordinate the manipulated variables. Design methods for both the new strategy and the VPC controller are presented in the paper.</p>},
  author       = {Hägglund, T.},
  issn         = {0967-0661},
  language     = {eng},
  number       = {March},
  pages        = {1--10},
  publisher    = {Elsevier},
  series       = {Control Engineering Practice},
  title        = {A feedforward approach to mid-ranging control},
  url          = {http://dx.doi.org/10.1016/j.conengprac.2020.104713},
  doi          = {10.1016/j.conengprac.2020.104713},
  volume       = {108},
  year         = {2021},
}