UNINTERRUPTED POWER SUPPLY SOURCE (UPS) WITH CLEAN INPUTS, WITH QUICK-ACTING CONTROL OF RECTIFIER AND INCREASED SERVICE LIFE OF ACCUMULATOR BATTERY Russian patent published in 2012 - IPC H02J9/06 

FIELD: electricity.

SUBSTANCE: aspects of this invention relate to a control logic realised to perform an operation of quick-acting control of a rectifier, which increases service life of an accumulator battery connected to an active rectifier of a UPS system. In accordance with aspects of this invention, in the mode with an asymmetric load it is possible to select a sought-for mode between two possible limit modes, i.e. realisation of a clean capacity input, which reduces service life of an accumulator battery, or realisation of a non-clean capacity input, which increases service life of an accumulator battery. Besides, this invention uses quick-acting control of a rectifier and a special operation of control with a direct link.

EFFECT: possibility to produce highly heavy control of DC insert voltage even under limit stepped load variations.

10 cl, 7 dwg