Possibilities of using DC-DC converters to improve the reliability of power supply of combined power plants

Abstract

Relevance: Today, the share of renewable energy sources, particularly solar and wind, is increasing in the global energy system. Growing demand for electricity, environmental issues and dwindling fuel reserves require efficient use of these sources. Solar and wind sources complement each other, and their combined use ensures stable energy production. At the same time, due to the variability of these two sources, the output voltage and current levels are unstable. This has a negative impact on the quality of electricity supplied to consumers. In combined energy systems, (DC – direct current) DC-DC converters (power converters) play an important role in solving this problem. They coordinate electricity received from different sources, bring it to the required voltage and current levels and effectively manage energy flows. Therefore, the correct selection and control of DC-DC converters directly affect the stable and reliable operation of combined solar-wind systems.

Aim: To analyze and justify the possibilities of increasing the reliability of operation by using DC-DC converters in combined energy systems.

Methods: Mathematical equations and contour current methods are used.

Results: In the transition to a "green" economy, it is necessary to use reliable, stable energy from renewable energy sources, and methods with high efficiency in combining energy from various energy sources. Based on the analysis, relevant proposals are made to increase the reliability of operation by using DC-DC converters in combined energy systems.