Conference article

Control Development and Modeling for Flexible DC Grids in Modelica

Andreas Olenmark
One Nordic AB, Sweden

Jens Sloth
Gothia Power, Sweden

Anna Johnsson
Modelon AB, Sweden

Carl Wilhelmsson
Modelon AB, Sweden

Jörgen Svensson
Industrial Electrical Engineering and Automation (IEA), Lund University, Sweden

Download articlehttp://dx.doi.org/10.3384/ecp15118823

Published in: Proceedings of the 11th International Modelica Conference, Versailles, France, September 21-23, 2015

Linköping Electronic Conference Proceedings 118:89, s. 823-829

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Published: 2015-09-18

ISBN: 978-91-7685-955-1

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

Abstract

This article presents a way of implementing different control strategies for power electronic converters in the Modelica modeling language. The different control modes were fitted into flexible models that could be interconnected in various power grid topologies. The power grid examples were controlled and kept stable during various load scenarios, using the developed controlled converter models. The work was performed using the Modelica tool Dymola. Modelica is an equationbased object-oriented modeling language. Electrical components in the Electric power library (EPL) from Modelon were used to model power electronic units, grids and other electrical infrastructures. The outcome of this effort was simulation results which clearly demonstrate that the developed controllers enable scalable and controllable DC power grids.

Keywords

HVDC; smart grids; converter control

References

M Alaküla, P Karlsson, “Power Electronics: Devices, Converter, Control and Applications”, Department of Industrial Electrical Engineering and Automation.

M. Alaküla, L. Gertmar, O. Samuelsson, ”Elenergiteknik”, Lund, Sweden, Lunds Tekniska Högskola, Department of Industrial Electrical Engineering and Automation, 2011

A. Carlsson, “The back to back converter control and design”, Lund, Sweden, Department of Industrial Electrical Engineering and Automation Lund Institute of Technology, May 1998.

T. M.Haileselassie; “Control, Dynamics and Operation of Multi-terminal VSC-HVDC Transmission Systems”, Norwegian University of Science and Technology Department of Electric Power Engineering Trondheim December 2012.

S. L. Sanjuan, “Voltage Oriented Control of Three-Phase Boost PWM Converters Design, simulation and implementation of a 3-phase boost battery charger”.

Department of Energy and Environment ,Division of Electric Power Engineering CHALMERS UNIVERSITY OF TECHNOLOGY, Göteborg, Sweden, 2010.

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