Abstract

The most important indicator of the reliability of the power system is the quality of the supplied electricity. The quality of power supply depends on many parameters, the maintenance of which at a given level (voltage, frequency deviation) is carried out using various devices. One of these devices is grid energy storages, allowing you to even out schedules of daily, weekly, seasonal and annual electrical loads. Energy storage devices can also act as an uninterrupted power supply for substations and electrical grids, provide increased dynamic and static stability, and increase the transmission line throughput. However, the use of energy storage to eliminate irregularities in the schedule of generating capacities is not a traditional way. When using energy storage devices, the most important task is to determine their total capacity and energy intensity, as well as the location of the storage devices in the energy system and the economic feasibility of these measures. The criterion for the placement of storage devices is to reduce energy losses when using grid energy storages. In the course of the research, graphic and analytical dependencies of the distribution grid loads were obtained before and after the placement of grid energy storages, depending on the average daily active load.

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