Meny

Du är här

Collocation Methods for Optimization in a Modelica Environment

Författare:
Publiceringsår: 2012
Språk: Engelska
Publikation/Tidskrift/Serie: Proceedings of the 9th International Modelica Conference
Dokumenttyp: Konferensbidrag
Ytterligare information: Key=mag+12mc project=LCCC-modeling, langopt, collocation

Sammanfattning

The solution of generic dynamic optimization problems described by Modelica, and its extension Optimica, code using direct collocation methods is discussed. We start by providing a description of dynamic optimization problems in general and how to solve them by means of direct collocation. Next, an existing implementation of a collocation algorithm in JModelica.org, using CasADi and IPOPT, is presented. The extensions made to this implementation are reported.

The new implementation is compared to an old C-based collocation algorithm in JModelica.org in two benchmarks. The presented benchmarks are based on a continuously stirred tank reactor and a combined cycle power plant. The new algorithm and its surrounding framework is more flexible and shown to be several times more efficient than its predecessor.

Disputation

Nyckelord

  • Technology and Engineering
  • dynamic optimization
  • JModelica.org
  • collocation
  • nonlinear programming
  • CasADi

Övriga

9th International Modelica Conference
2012-09-03
Munich, Germany
Published
  • LCCC
Yes
  • LCCC

Box 117, 221 00 LUND
Telefon 046-222 00 00 (växel)
Telefax 046-222 47 20
lu [at] lu [dot] se

Fakturaadress: Box 188, 221 00 LUND
Organisationsnummer: 202100-3211
Om webbplatsen