Validering av vattenkraftmodeller i ARISTO
This master thesis was made to validate hydropower models of a turbine governor,Kaplan turbine and a Francis turbine in the power system simulator ARISTO atSvenska Kraftnät. The validation was made in three steps. The first step was to makesure the models was implement correctly in the simulator. The second was tocompare the simulation results from the Kaplan turbine model to data from a realhydropower plant. The comparison was made to see how the models could generatesimulation result that was similar to the reference power station. The third was tovalidate in which way the Francis turbine model influenced the simulation result froma small power system. Data from the Swedish black start test system was availableand used as reference data. The main question for step three was if the simulationresult got better and more like reference data if the Francis turbine model was used.The result showed that the models was correct implemented in ARISTO and that themodels can generate simulation result that was similar to reference data if the correctparameters was collected from individual power plants. The torque tables for theturbines models and the parameters for the PID-controller in the turbine governorhad greater impact on the simulation results then other parameter in the models.Key word: turbine, hydropower models, power system simulation