---
_id: '7257'
abstract:
- lang: eng
  text: Solving inverse static initialization problems, in which the outputs of a
    process are prescribed, is often more numerically challenging than solving direct
    initialization problem, where inputs are fixed instead. This paper proposes the
    introduction of a new initialSimplified() operator in Modelica, which allows to
    solve inverse problems with the same reliability as direct problems, using an
    intuitive, straightforward Modelica formulation. The proposed solution can be
    trivially implemented in Modelica tools and will be 100% portable among them,
    once the new operator is standardized. The usefulness of the proposed approach
    is demonstrated on a conceptual thermal power generation plant model.
author:
- first_name: Francesco
  full_name: Casella, Francesco
  last_name: Casella
- first_name: Philip
  full_name: Hannebohm, Philip
  id: '221456'
  last_name: Hannebohm
  orcid: 0009-0003-8902-9079
  orcid_put_code_url: https://api.orcid.org/v2.0/0009-0003-8902-9079/work/231825701
- first_name: Matteo Luigi De
  full_name: Pascali, Matteo Luigi De
  last_name: Pascali
conference:
  end_date: 2026-09-22
  location: Hangzhou, China
  name: Asian Modelica & FMI Conference
  start_date: 2026-09-20
date_created: 2026-10-31T14:00:35Z
date_updated: 2026-10-31T14:01:59Z
department:
- _id: '103'
doi: 10.3384/ecp22331
file:
- access_level: open_access
  content_type: application/pdf
  creator: phannebohm
  date_created: 2026-10-31T13:55:33Z
  date_updated: 2026-10-31T13:55:33Z
  file_id: '7258'
  file_name: AMFC2026_paper_T1S2P1.pdf
  file_size: 413909
  relation: main_file
  success: 1
file_date_updated: 2026-10-31T13:55:33Z
has_accepted_license: '1'
intvolume: '       223'
keyword:
- Modelica language
- initialization
- homotopy
- convergence problems
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://ecp.ep.liu.se/index.php/modelica/article/view/1653
oa: '1'
publication: Proceedings of the Asian Modelica & FMI Conference Hangzhou, China, September
  20-22, 2026
publication_identifier:
  eisbn:
  - 978-91-8118-699-4
publication_status: published
publisher: Linköping University Electronic Press
quality_controlled: '1'
series_title: Linköping Electronic Conference Proceedings
status: public
title: 'Robust solution of inverse static problems in Modelica: the case for the initialSimplified()
  operator'
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: conference
urn: urn:nbn:de:hbz:bi10-72570
user_id: '221456'
volume: 223
year: '2026'
...