The thesis presents the development and analysis of a simulation model of a hydroelectric power plant, designed to study the impact of control and the number of turbines on operational stability and the utilization of available water. The model is based on the mass balance of water in the reservoir and includes the numerical solution of a differential equation for the water level. It incorporates control through corrective flow and discrete optimization of flow distribution among the turbines in order to achieve maximum power output. The simulation used data on the flow of the Sava River in its middle section, along with construction parameters like those planned for hydroelectric power plants in that area. The analysis compares scenarios with two and three Kaplan turbines, which are the most suitable choice due to the low drop and high flow rates characteristic of the middle Sava. The results showed that both scenarios enable a high utilization of the water source, while the number of turbines primarily affects operational flexibility under variable flow conditions.
The developed model has practical value as a tool for assessing the effects of different regulation strategies, selecting the appropriate number of turbines, and predicting energy efficiency based on real hydrological data. Further improvements are possible by incorporating more advanced optimization algorithms and more detailed modeling of individual system components.
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