Conference article

Power System Stability Using Modelica

Thomas Øyvang
Telemark University College, Faculty of Technology, Porsgrunn, Norway

Dietmar Winkler
Telemark University College, Faculty of Technology, Porsgrunn, Norway

Bernt Lie
Telemark University College, Faculty of Technology, Porsgrunn, Norway

Gunne John Hegglid
Skagerak Energi AS, Norway

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Published in: Proceedings of the 55th Conference on Simulation and Modelling (SIMS 55), Modelling, Simulation and Optimization, 21-22 October 2014, Aalborg, Denmark

Linköping Electronic Conference Proceedings 108:10, p. 120-127

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Published: 2014-12-09

ISBN: 978-91-7519-376-2

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

This paper is concerned with power system modeling using the Modelica language in comparison to a traditional simulation tool. Though most common power system simulation tools are computationally efficient and reasonably user-friendly, they have a closed architecture. Thus, there is motivation to use an open-source modeling language to describe electric networks, such as Modelica. A well-established benchmark for power system studies was analyzed. Regarding the voltage as a function of time, a reasonable agreement was found between the simulation results of the used simulation tools for long-term voltage stability. However, a comparison of faster electromechanical mechanisms, such as rotor angle stability, demands more detailed models in the Modelica tool.

Keywords

Power system modeling and control; PSS R E; Modelica; Dymola; Voltage stability; Rotor angle stability; Frequency stability

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