Hydropower Systems: Comparison of Mechanistic and Table Look-up Turbine Models

Valentyna Splavska
University College of Southeast Norway, Porsgrunn, Norway

Liubomyr Vytvytskyi
University College of Southeast Norway, Porsgrunn, Norway

Bernt Lie
University College of Southeast Norway, Porsgrunn, Norway

Ladda ner artikelhttp://dx.doi.org/10.3384/ecp17138368

Ingår i: Proceedings of the 58th Conference on Simulation and Modelling (SIMS 58) Reykjavik, Iceland, September 25th – 27th, 2017

Linköping Electronic Conference Proceedings 138:49, s. 368-373

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Publicerad: 2017-09-27

ISBN: 978-91-7685-417-4

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


In this paper, a detailed overview of hydropower system components is given. Components of the system include intake race, upstream and downstream surge tanks, penstock, turbine and draft tube. A case study which includes a Francis turbine, taken from the literature, was used. The paper presents a case study hydropower system, with models implemented in Modelica. For simplicity, compressibility of water and elasticity of pipe walls were neglected. The main aims are to compare a turbine model based on the Euler equations vs. a table look-up model, and illustrate how the surge tanks influence the transients of the system.


hydropower system, Modelica, mechanistic model, table look-up model, Francis turbine


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