Integration of a DC-Based Power Supply System into a Residential

At the moment, power supply systems without centralized power supply, using autonomous sources, are becoming increasingly popular. In this paper, the issue of the effectiveness of the introduction of a DC-based power supply system generated by alternative energy sources in the framework of domestic use is analyzed. The article presents various models of hybrid microgrids operating on direct and alternating current. The moment is considered with a decrease in the number of power conversion stages in the issue of switching to direct current with the possibility of reducing the price of power supplies used in electrical equipment, the main advantages of direct current are described. Using the example of a residential building, the question of the optimal voltage level, the number of photovoltaic plants used, and the type of consumers is analyzed. Possible converters and necessary batteries are considered, the difference between losses and voltage drop is calculated by calculation, and the fact of increasing the line capacity when switching to DC power is justified.