Object-Oriented Dynamic Modelling of Gas Turbines for CSP Hybridisation
Luis J. Yebra, S. Dormido, Luis E. Díez, Alberto R. Rocha, Lucía González, Eduardo Cerrajero, Silvia Padilla · Linköping electronic conference proceedings · 2018
This paper presents a dynamic model of a gas turbine developed for the HYSOL project.The model is developed mainly for control purposes and based on mathematical, physical and chemical principles.Approximations and assumptions are presented with the objective to minimize complexity and to maintain a modular structure.The main modules are presented independently and ready to be connected to form the complete and parameterizable gas turbine model.Possible cases of algebraic loops appearance are detected and solutions are proposed to avoid them.Moreover, first principles compression and expansion maps are developed to avoid non-linear algebraic loops.The Modelica modelling language and the libraries Modelica.Fluid and Modelica.Media have been extensively used for the models development.Results from simulation experiments are presented, implementing the proposed mathematical models for compressor and turbine submodules independently, as well as for the complete gas turbine system.