| Abstract [eng] |
The output of photovoltaic solar power plants also fluctuates as sunlight changes. As sunlight increases, grid loads increase and allowable voltages may exceed allowable limits, causing solar inverters and other electrical equipment to stop working. Excess energy can be stored in energy storage system and used after sunset or when the energy of sunlight is low. In this paper work, optimal solar power plant and electricity energy storage system parameters and control are modeled according to the electricity energy demand and electricity power load. The parameters of the solar power plant and electricity storage system are calculated in the research part. The following data were used in the calculation: solar energy data in the city of Kaunas, electricity consumption data of an individual residential building, energy data generated and stored by the experimental solar power plant and electricity storage system. In the experimental part, a reduced model of the solar power plant and the electricity storage system was tested. Accumulated data of produced and consumed electricity. The program control algorithm was tested according to the user's electricity needs and loads. In the economic part, the financial benefits of the solar power plant and two different electricity storage systems are calculated. The conclusions of the study contain a summary of the results. The aim of the work is to create a model for selecting and controlling the optimal parameters of the solar power plant and energy storage system. The tasks of the work are to carry out the scientific literature on solar power plant and electricity storage systems, the principles of their operation, analyze them, apply them in the modeling program and present the analysis and conclusions of the research results. |
