The Tracking Ratio Station
(2017) In Control Engineering Practice 69. p.122-130- Abstract
- In ratio control, the control objective is to keep the ratio between two signals, normally flow measurements, at a desired value in spite of variations in setpoints and load disturbances, and possible control signal saturations. This paper presents a new ratio control scheme, the Tracking Ratio Station, that manages to handle all these situations. It is also able to keep the ratio when one of the controllers takes a local setpoint or is switched to manual control. The Tracking Ratio Station determines the setpoints of the two flow loops so that the one with the largest control error follows the external setpoint, whereas the one with the smallest control error follows the process output of the opposite control loop. The paper illustrates... (More)
- In ratio control, the control objective is to keep the ratio between two signals, normally flow measurements, at a desired value in spite of variations in setpoints and load disturbances, and possible control signal saturations. This paper presents a new ratio control scheme, the Tracking Ratio Station, that manages to handle all these situations. It is also able to keep the ratio when one of the controllers takes a local setpoint or is switched to manual control. The Tracking Ratio Station determines the setpoints of the two flow loops so that the one with the largest control error follows the external setpoint, whereas the one with the smallest control error follows the process output of the opposite control loop. The paper illustrates the properties of the Tracking Ratio Station in terms of both simulations and industrial field tests. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/e26fe504-60ff-4eae-80c1-9ff2b0e6dec2
- author
- Hägglund, Tore LU
- organization
- publishing date
- 2017-12
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ratio control, Ratio Station, Blending, In-line blending, Mixing, Process control, Tracking Ratio Station
- in
- Control Engineering Practice
- volume
- 69
- pages
- 9 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85030701439
- wos:000414109400011
- ISSN
- 0967-0661
- DOI
- 10.1016/j.conengprac.2017.09.016
- project
- Decentralized Control Structures
- LCCC
- PID Control
- PICLU
- language
- English
- LU publication?
- yes
- id
- e26fe504-60ff-4eae-80c1-9ff2b0e6dec2
- date added to LUP
- 2017-10-13 13:33:38
- date last changed
- 2022-03-02 01:06:31
@article{e26fe504-60ff-4eae-80c1-9ff2b0e6dec2,
abstract = {{In ratio control, the control objective is to keep the ratio between two signals, normally flow measurements, at a desired value in spite of variations in setpoints and load disturbances, and possible control signal saturations. This paper presents a new ratio control scheme, the Tracking Ratio Station, that manages to handle all these situations. It is also able to keep the ratio when one of the controllers takes a local setpoint or is switched to manual control. The Tracking Ratio Station determines the setpoints of the two flow loops so that the one with the largest control error follows the external setpoint, whereas the one with the smallest control error follows the process output of the opposite control loop. The paper illustrates the properties of the Tracking Ratio Station in terms of both simulations and industrial field tests.}},
author = {{Hägglund, Tore}},
issn = {{0967-0661}},
keywords = {{Ratio control, Ratio Station, Blending, In-line blending, Mixing, Process control, Tracking Ratio Station}},
language = {{eng}},
pages = {{122--130}},
publisher = {{Elsevier}},
series = {{Control Engineering Practice}},
title = {{The Tracking Ratio Station}},
url = {{http://dx.doi.org/10.1016/j.conengprac.2017.09.016}},
doi = {{10.1016/j.conengprac.2017.09.016}},
volume = {{69}},
year = {{2017}},
}