POWER CONVERTER Russian patent published in 2013 - IPC H02M5/451 H02P25/02 H02P27/06 B63H21/20 B63H23/24 B63H25/24 

FIELD: electrical engineering.

SUBSTANCE: power converter contains an inverter (10) for connection to the engine (4) stator, an inverter (14) with multiple semiconductor power switching devices interconnected via a DC line (12) and controlled by controllers (18, 20) respectively and a filter (16) between the inverter (14) and the feeding power grid. The inverter (10) switching devices are controlled by the controller (18) by means of signal VDC-MOT* of required voltage in the DC line which signal carries information on the desirable voltage in the line for ensuring the desirable level of the said voltage corresponding to the signal of voltage required in the said line. The inverter (14) switching devices are controlled by the controller (20) by means of the required power signal P* carrying information on the power level required for transfer into the DC line from the feeding power grid (bus) and by means of the required voltage signal VBUS* carrying information on voltage on the filter main terminals to ensure the desirable levels of power and voltage corresponding to the required power and voltage signals.

EFFECT: provision for connection of the power converter to the power supply system without voltage reduction or damage caused to the system.

36 cl, 2 dwg