STATIC REVERSIBLE CONVERTER FOR POWER SUPPLY OF ALTERNATING AND DIRECT-CURRENT CONSUMERS Russian patent published in 2014 - IPC H02M7/68 

FIELD: electricity.

SUBSTANCE: invention is related to reversible converters designed for power supply of alternating and direct-current consumers and the system contains the first input/output port at the side of connected accumulator battery and the second input/output port at the side of alternating-current supply mains. In inverter mode direct current is supplied from the accumulator battery to the first port while alternating current is outputted from the second port. In rectifier mode input alternating current is supplied to the second port while direct current is outputted from the first port. Between the ports there are in-series interconnected high-frequency link and a link of industrial frequency self-commutated inverter. Operation of the links is controlled by the control system. The high-frequency link is made as a combined scheme of resonance inverters and voltage inverters connected in parallel by their inputs and in-series by their outputs; while in rectifier mode is works as a combined scheme of voltage inverters and rectifiers. In inverter mode all invertors but one are non-regulated. One inverter is a regulated one. Non-regulated inverters create reference output voltage (minimum required). The regulated inverter shapes additional voltage added to the reference one so that output voltage could have the required value. In the rectifier mode wiring scheme of the reversible converter operates to generate charge current for accumulator batteries.

EFFECT: development of voltage converters designed to supply power to alternating- and direct-current consumers.

4 cl, 2 dwg