Advanced

Feedback control of flow rate from a peristaltic pump using balance measurements

de Maré, Lena LU ; Velut, Stéphane LU ; Hagander, Per LU and Åkesson, Mats (2001)
Abstract
In many biotechnological processes it is important to perform exactdosing of the substrate into the bioreactor. The idea in this paper is to use the measurements from a balance to control the flow rate, since there is no access to the flow itself. The goals of the controller are several: it should be capable of handling load disturbances acting on the pump, measurement noise and even shocks acting on the balance. For this purpose an observer disregarding outliers is designed for low influence of the measurement noise. The observer-based feedback term compensates the load disturbances and the model errors. A dynamic feed forward structure is introduced to speed up the setpoint response. Simulation experiments show that the suggested... (More)
In many biotechnological processes it is important to perform exactdosing of the substrate into the bioreactor. The idea in this paper is to use the measurements from a balance to control the flow rate, since there is no access to the flow itself. The goals of the controller are several: it should be capable of handling load disturbances acting on the pump, measurement noise and even shocks acting on the balance. For this purpose an observer disregarding outliers is designed for low influence of the measurement noise. The observer-based feedback term compensates the load disturbances and the model errors. A dynamic feed forward structure is introduced to speed up the setpoint response. Simulation experiments show that the suggested controller structure works well. (Less)
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to conference
publication status
published
subject
keywords
peristaltic pump, feedback control, balance, flow rate
external identifiers
  • Scopus:84947460457
language
English
LU publication?
yes
id
5640bf8a-81d2-4e91-a7e7-c433f440f30d (old id 537871)
date added to LUP
2007-09-13 16:12:53
date last changed
2017-01-08 05:49:36
@misc{5640bf8a-81d2-4e91-a7e7-c433f440f30d,
  abstract     = {In many biotechnological processes it is important to perform exactdosing of the substrate into the bioreactor. The idea in this paper is to use the measurements from a balance to control the flow rate, since there is no access to the flow itself. The goals of the controller are several: it should be capable of handling load disturbances acting on the pump, measurement noise and even shocks acting on the balance. For this purpose an observer disregarding outliers is designed for low influence of the measurement noise. The observer-based feedback term compensates the load disturbances and the model errors. A dynamic feed forward structure is introduced to speed up the setpoint response. Simulation experiments show that the suggested controller structure works well.},
  author       = {de Maré, Lena and Velut, Stéphane and Hagander, Per and Åkesson, Mats},
  keyword      = {peristaltic pump,feedback control,balance,flow rate},
  language     = {eng},
  title        = {Feedback control of flow rate from a peristaltic pump using balance measurements},
  year         = {2001},
}