Article | Proceedings of the 10<sup>th</sup> International Modelica Conference; March 10-12; 2014; Lund; Sweden | Parameter Selection in a Combined Cycle Power Plant
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Title:
Parameter Selection in a Combined Cycle Power Plant
Author:
Niklas Andersson: Lund University, Department of Chemical Engineering, Lund, Sweden Johan Åkesson: Lund University, Department of Automatic Control, Lund, Sweden/Modelon AB, Lund, Sweden Kilian Link: Siemens AG, Erlangen, Germany Stephanie Gallardo Yances: Siemens AG, Erlangen, Germany Karin Dietl: Siemens AG, Erlangen, Germany Bernt Nilsson: Lund University, Department of Chemical Engineering, Lund, Sweden
DOI:
10.3384/ecp14096809
Download:
Full text (pdf)
Year:
2014
Conference:
Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden
Issue:
096
Article no.:
084
Pages:
809-818
No. of pages:
10
Publication type:
Abstract and Fulltext
Published:
2014-03-10
ISBN:
978-91-7519-380-9
Series:
Linköping Electronic Conference Proceedings
ISSN (print):
1650-3686
ISSN (online):
1650-3740
Publisher:
Linköping University Electronic Press; Linköpings universitet


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A combined cycle power plant are modelled and considered for calibration. The dynamic model; aimed for start-up optimization; contains 64 candidate parameters for calibration. The number of parameter sets that can be created are huge and an algorithm called subset selection algorithm is used to reduce the number of parameter sets. The algorithm investigates the numerical properties of a calibration from a parameter Jacobean estimated from a simulation of the model with reasonably chosen parameter values. The calibrations were performed with a Levenberg-Marquardt algorithm considering the least squares of eight output signals. The parameter value with the best objective function value resulted in simulations in good compliance to the process dynamics. The subset selection algorithm effectively shows which parameters that are important and which parameters that can be left out.

Keywords: Combined Cycle Power Plants; Startup; Calibration; Parameter Selection

Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Author:
Niklas Andersson, Johan Åkesson, Kilian Link, Stephanie Gallardo Yances, Karin Dietl, Bernt Nilsson
Title:
Parameter Selection in a Combined Cycle Power Plant
DOI:
http://dx.doi.org/10.3384/ecp14096809
References:

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Proceedings of the 10th International Modelica Conference; March 10-12; 2014; Lund; Sweden

Author:
Niklas Andersson, Johan Åkesson, Kilian Link, Stephanie Gallardo Yances, Karin Dietl, Bernt Nilsson
Title:
Parameter Selection in a Combined Cycle Power Plant
DOI:
http://dx.doi.org/10.3384/ecp14096809
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