Improving Newton's method for Initialization of Modelica models

Forskningsoutput: KonferensbidragKonferenspaper, ej i proceeding/ej förlagsutgivet

Abstract

Initializing a model written in Modelica translates to finding consistent initial values to the underlying DAE. Adding initial equations and conditions creates a system of non-linear equations that can be solved for the initial configuration. This paper reports an implementation of Newton's method to solve the non-linear initialization system. This implementation also uses a regularization method to deal with singular Jacobians as well as sparse solvers to exploit the sparsity structure of the Jacobian. The implementation is based on the open-source projects JModelica.org and Assimulo, KINSOL from the SUNDIALS suite and SuperLU.

Detaljer

Författare
Enheter & grupper
Forskningsområden

Ämnesklassifikation (UKÄ) – OBLIGATORISK

  • Matematik
  • Reglerteknik
Originalspråkengelska
StatusPublished - 2011
PublikationskategoriForskning
Peer review utfördJa
Evenemang8th International Modelica Conference 2011 - Dresden, Tyskland
Varaktighet: 2011 mar 20 → …

Konferens

Konferens8th International Modelica Conference 2011
LandTyskland
OrtDresden
Period2011/03/20 → …

Nedladdningar

Ingen tillgänglig data