CONVERTER OF THREE-PHASE ALTERNATING VOLTAGE TO DIRECT VOLTAGE Russian patent published in 2017 - IPC H02M7/10 

FIELD: electricity.

SUBSTANCE: converter comprises three-phase transformer with primary winding connected to a triangle and three groups of secondary phase windings, each connected in Y connection, the terminal of each phase winding, the first of the Y connection is connected to similar electrodes of first gates, other electrodes of which are connected to similar outputs of opposite-phase windings of second group and similar output of single-phase winding of third group, the common point of the second group winding is connected to the first end terminal of two identical counter series connected single-phase windings of the fourth group, the phase terminals of the windings of the second and third groups are connected to the like electrodes of the second gates, which common point forms the first pole, and the phase terminals of the first group windings are connected to the like electrodes of the third gates, which common point forms the second pole, wherein the number of turns of the phase winding of the second group equals to 1.8794⋅w, and the number of turns of the phase winding of the third group is 1.5321⋅w, where w is the number of turns of the phase winding of the third group is 1.5321, where w is number of turns of phase winding of first group, the second end terminal of windings of fourth group is connected to the common point of winding of third group, number of turns of each phase winding of the fourth group is equal to quotient of division by two of difference of winding turns number of second and third groups.

EFFECT: equal gate switching angles with minimum amount of secondary three-phase windings of transformer windings.

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