Abstract
This paper explores the possibility of using different types of electric power storage devices in energy systems. A comparative analysis of such types of storage devices as: electrochemical, electrical, electromagnetic, mechanical. The properties of lead-acid, nickel-cadmium, sodium-sulfur, lithium-ion batteries, supercapacitors, superconducting magnets, kinetic storage devices are analyzed with the identification of advantages and disadvantages of their use; the fields of their application are considered. The possibility of integrating storage devices with renewable energy sources is being considered. The analysis of the averaged load schedules for the winter and summer periods is performed; the feasibility of using the drive to smooth out the peaks of the consumption load schedules is justified. A schematic solution for connecting an electric power storage device with a control system for a medium-voltage power supply network is proposed. The connection of the drive in such a system is provided on the 0.4 kV side using converter devices. The using of an AC-DC converter with a control system in such a system regulates the flows of active power in order to perform a two-way energy conversion in the case of energy accumulation by the storage device and energy return to the network.
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