Conference article

Dynamic modelling of a combined cycle power plant with ThermoSysPro

Baligh El Hefni
EDF R&D, France

Daniel Bouskela
EDF R&D, France

Gréory Lebreton
EDF R&D, France

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Published in: Proceedings of the 8th International Modelica Conference; March 20th-22nd; Technical Univeristy; Dresden; Germany

Linköping Electronic Conference Proceedings 63:40, p. 365-375

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Published: 2011-06-30

ISBN: 978-91-7393-096-3

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


A new open source Modelica library called “ThermoSysPro” has been developed within the framework of the ITEA 2 EUROSYSLIB project. This library has been mainly designed for the static and dynamic modeling of power plants; but can also be used for other energy systems such as industrial processes; buildings; etc.

To that end; the library contains over 100 0D/1D model components such as heat exchangers; steam and gas turbines; compressors; pumps; drums; tanks; volumes; valves; pipes; furnaces; combustion chambers; etc. In particular; one and two-phase water/steam flow; as well as flue gases flow are handled.

The library has been validated against several testcases belonging to all the main domains of power plant modeling; namely the nuclear; thermal; biomass and solar domains.

The paper describes first the structure library. Then the test-case belonging to the thermal domain is presented. It is the dynamic model of a combined cycle power plant; whose objective is to study a step variation load from 100% to 50% and a full gas turbine trip. The structure of the model; the parameterization data; the results of simulation runs and the difficulties encountered are presented.


Modelica; thermal-hydraulics; combined cycle power plant; dynamic modeling; inverse problems


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