Jelena Pavlović

The objective of this paper is to examine the impact of integrating renewable energy sources (RES) with variable primary resource on existing power sources within a production-consumption area. Our methodology is based on simulation testing using a Hardware-in-the-Loop (HIL) laboratory setup. The model includes two turbo units connected to 110 kV busbars, with a wind power plant providing approximately 20% of the traditional power plant’s capacity connected in parallel. We utilized a typical power variation diagram of the wind turbine to analyze the effect on voltage and generated reactive power of the traditional power plant. Both power plants are equipped with a standard virtual power plant controller, and we accounted for typical numerical power variations across the wind farm. Additionally, we considered a typical daily voltage variation diagram at the connection point to the 110 kV grid. Our analysis results indicate how variations in energy production from RES influence voltage and reactive power variations at the connection point. These findings are crucial for the optimal integration of RES, battery energy storage, and controlled consumption into a virtual power plant.

Keywords: renewable energy sources, wind turbine, virtual power plant, Q-V control