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Mätning och identifiering av dynamiken på torkpartiet i en pappersmaskin

Elfving, Thomas and Hultberg, Thomas (1969) In MSc Theses
Department of Automatic Control
Abstract
This report presents measuring and identifications of the process in papermachine PM4 Gruvöns Bruk, Grums. <br> Our intention was, except the measuring itself, to improve, if possible, the system model now used for process control with an IBM 1710 system. <br> The measurings were accomplished during the last two weeks of February 1969, and included six series of about 2000 samples each using a sampling interval of 0.001 h. The outputs basis weight and moisture were recorded on data cards together with the input's mass flow and steam pressure while perturbing the inputs. The collected information was later transferred to tape in order to enable a rational identification of the system models. <br> The identifications with the four possible... (More)
This report presents measuring and identifications of the process in papermachine PM4 Gruvöns Bruk, Grums. <br> Our intention was, except the measuring itself, to improve, if possible, the system model now used for process control with an IBM 1710 system. <br> The measurings were accomplished during the last two weeks of February 1969, and included six series of about 2000 samples each using a sampling interval of 0.001 h. The outputs basis weight and moisture were recorded on data cards together with the input's mass flow and steam pressure while perturbing the inputs. The collected information was later transferred to tape in order to enable a rational identification of the system models. <br> The identifications with the four possible combinations of one input - one output performed resulted in good models with the input mass flow, but with steam pressure as input the models turned out to be of less significance, much owing to the small disturbances allowed. <br> Identifications of two inputs - one output models were not completed since the smallness of the disturbance of the steam pressure became further more evident than during identification of the one input - one output models. (Less)
Please use this url to cite or link to this publication:
author
Elfving, Thomas and Hultberg, Thomas
supervisor
organization
year
type
H3 - Professional qualifications (4 Years - )
subject
publication/series
MSc Theses
report number
TFRT-5057
ISSN
0346-5500
language
Swedish
id
8850826
date added to LUP
2016-03-29 16:23:27
date last changed
2016-03-29 16:23:27
@misc{8850826,
  abstract     = {This report presents measuring and identifications of the process in papermachine PM4 Gruvöns Bruk, Grums. <br> Our intention was, except the measuring itself, to improve, if possible, the system model now used for process control with an IBM 1710 system. <br> The measurings were accomplished during the last two weeks of February 1969, and included six series of about 2000 samples each using a sampling interval of 0.001 h. The outputs basis weight and moisture were recorded on data cards together with the input's mass flow and steam pressure while perturbing the inputs. The collected information was later transferred to tape in order to enable a rational identification of the system models. <br> The identifications with the four possible combinations of one input - one output performed resulted in good models with the input mass flow, but with steam pressure as input the models turned out to be of less significance, much owing to the small disturbances allowed. <br> Identifications of two inputs - one output models were not completed since the smallness of the disturbance of the steam pressure became further more evident than during identification of the one input - one output models.},
  author       = {Elfving, Thomas and Hultberg, Thomas},
  issn         = {0346-5500},
  language     = {swe},
  note         = {Student Paper},
  series       = {MSc Theses},
  title        = {Mätning och identifiering av dynamiken på torkpartiet i en pappersmaskin},
  year         = {1969},
}