SUCHKOV'S MULTIPHASE CONVERTER Russian patent published in 2012 - IPC H02M7/08 

FIELD: electric engineering.

SUBSTANCE: invention relates to converter equipment and may be used for manufacturing controllable electric d.c. drives for lathes to improve their speed of operation and for converter substations for powering electrified railway roads in electro metallurgical and chemical industries to reduce volumes of rectified voltage pulses and reduce the potion of high harmonica components in a.c. curve. The Suchkov's multistage converter is comprised of three coils (1, 2, 3) of the primary winding connected based on "star" arrangement and coupled with the mains phases A, B, C, and interconnected six coils (4, 5, 6, 7, 8, 9) of the secondary windings and coupled with the converter's rectifier cell. Each coil of secondary transformer windings is a side of "hexagon". The rectifier cells (10, 11, 12, 13, 14, 15) of the cathode group are connected with the units linking the secondary transformer windings by anodes. The rectifier cells (16, 17, 18, 19, 20, 21) of anode group are connected to branches from a half of coil windings in the secondary windings of transformer.

EFFECT: invention allows for achieving technical results related to reduction of direct currents of rectifier cells during converter operation, resulting in increase of converter efficiency and reduction of weight, dimensions and cost.

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