UNINTERRUPTIBLE POWER SYSTEM Russian patent published in 2023 - IPC H02J9/06 

FIELD: electrical engineering.

SUBSTANCE: invention can be used for uninterrupted power supply to critical consumers, both in the presence and in the absence of a centralized power supply system. In the proposed uninterruptible power supply system designed to power AC and DC consumers, there are three power sources - a three-phase AC power source as the main source, as well as a backup battery and an autonomous generator. The uninterruptible power supply system makes it possible to provide AC and DC consumers with stable (without disturbances, for example, in the form of dips) voltages in a wide range of capacities in case of failures (disturbances) in the operation of the AC voltage source and autonomous generator, as well as when switching contacts of contactors that provide galvanic decoupling between primary power sources. In addition, the uninterruptible power supply system provides the required algorithm for the process of charging the battery with constant optimal current and constant voltage with temperature correction, resulting in increased reliability and longer battery life.

EFFECT: increasing the efficiency and reliability of the uninterruptible power supply system.

1 cl, 3 dwg