Abstract
Relevance The importance of using non-traditional energy sources is evidenced by the decision to provide subsidies from the federal budget for state support for technological connection of generating facilities operating on the basis of the use of renewable energy sources (RES). As part of the state policy aimed at improving energy efficiency and developing the use of renewable energy sources, mechanisms are provided to support the stimulation of electric energy production by generating facilities operating on the basis of the use of renewable energy sources. Aim of research In this paper, the development and research of a power converter for wind energy that meets the requirements of highly efficient alternative energy sources is carried out. The developed converter can be used by models. The article is devoted to the analysis of the weaknesses of traditional power converters and the development of solutions to improve their efficiency and reliability. Research methods This work consists in creating a computer model for the wind energy system in the Matlab/Simulink program. The model is focused on the characteristics of a specific wind turbine and includes elements for converting and controlling electricity, such as a generator, rectifier and inverter, as well as a component that simulates the physical operation of a windmill. The selected components make it possible to accurately simulate both the electrical and mechanical parts of the wind power system. Results The authors consider the possibility of developing a power converter for wind energy that meets the requirements of highly efficient alternative energy sources. Mathematical and computer modeling of a converter for a small wind turbine has been performed. The novelty of the work consists in the development of a model in the Simulink program of the Matlab converter software package for a small wind turbine, taking into account the parameters of a WH8-10000W type wind generator and consisting of a virtual PMGM, a rectifier, a pulse inverting stabilizer, an inverter, which were taken from the Specialized Power Systems library, as well as a system simulating the mechanical part of a wind generator. This article presents the results of the calculation and selection of the elements of the electrical schematic diagram of the developed and investigated converter of a small wind turbine. Based on the results of a study performed using computer simulation of a converter for a small wind turbine with a power source from a wind generator, graphs of converter currents and voltages were constructed and analyzed. Acknowledgments: The research was carried out using a grant from the President of the Russian Federation in 2022-2024 for young scientists and graduate students carrying out promising scientific research and development in priority areas of modernization of the Russian economy. Grant recipient is Regina Tagirovna Khazieva. The priority direction of modernization of the Russian economy (direction of competition No. SP-2022 of the Grant Council of the President of the Russian Federation) is «Energy Efficiency and Energy Saving, Including Issues of Developing New Types of Fuel». Research topic: «Development and Research of a Filter Compensating Device to Improve the Quality of Electricity».
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