Conference article

Flexibilization of Coal-fired Power Plants by Dynamic Simulation

Marcel Richter
Chair of Environmental Process Engineering and Plant Design, University of Duisburg-Essen, Germany

Florian Möllenbruck
Chair of Environmental Process Engineering and Plant Design, University of Duisburg-Essen, Germany

Andreas Starinsk
Chair of Environmental Process Engineering and Plant Design, University of Duisburg-Essen, Germany

Gerd Oeljeklaus
Chair of Environmental Process Engineering and Plant Design, University of Duisburg-Essen, Germany

Klaus Görner
Chair of Environmental Process Engineering and Plant Design, University of Duisburg-Essen, Germany

Download articlehttp://dx.doi.org/10.3384/ecp15118715

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

Linköping Electronic Conference Proceedings 118:77, p. 715-723

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Published: 2015-09-18

ISBN: 978-91-7685-955-1

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

Abstract

Due to the intensive expansion of renewable energies, the technological and economic boundary conditions for conventional power plants in Germany changed significantly over the last few years. Nowadays the flexibility in power production becomes increasingly important. This development is caused by the fluctuating power output from renewable energies, such as wind power and photovoltaic. A similar trend can be expected in other European countries and even world wide, where the expansion of renewable energies is pursued to reduce the emission of carbon dioxide. Dynamic simulation models play a central role in improving the flexibility of power plants as they offer a tool for the evaluation of the resulting highly transient operation. This paper presents the dynamic modeling of a steam power plant in Modelica/Dymola, using the power plant library ClaRa (Clausius Rankine). The focus is on the detailed non-steady-state modeling of the steam generator and a simulation study about the increase of the load change rate.

Keywords

Thermodynamics; dynamic simulation; steam power plant; steam generator; load change rate; flexible power plant

References

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[8] Market simulation data from the Institute of Energy Economics at the University of Cologne in the frame of the Project Partner Steam Power Plant [13].

[9] Mitsubishi Hitachi Power Systems Europe GmbH, reference list.

[10] M. Richter, G. Oeljeklaus, K. Görner. Dynamic Simulation of Coal-Fired Power Plants focusing on the Modeling of the Steam Generator, 10th European Conference on Industrial Furnaces and Boilers, Porto, Portugal, 2015.

[11] VDI/VDE 3503. Steam Temperature Control in Fossil Fired Steam Power Stations.

[12] VDI/VDE 3508. Unit control of thermal power stations

[13] VGB PowerTech e.V., VGB Research Project 375: Partner steam power plant for the regenerative power generation. http://www.vgb.org/en/research_project375.html

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