STEPLESSLY VARIABLE SATURATION COMPENSATION CHOKE Russian patent published in 2018 - IPC H01F29/14 H02P13/12 H02J3/18 G05F1/32 G05F1/38 

FIELD: ELECTRICAL EQUIPMENT.

SUBSTANCE: INVENTION RELATES TO ELECTRICAL EQUIPMENT. STEPLESSLY VARIABLE SATURATION COMPENSATION CHOKE CONTAINS A LAMINATED CORE WITH TWO RODS (1, 2) WITH A WINDING FOR EACH PHASE THAT ARE CONNECTED BY A YOKE. ON EACH ROD (1, 2) HOUSES BRANCH (3, 4) WITH A WINDING OF THE NETWORK WINDING. HIGH-VOLTAGE ENDS OF BOTH BRANCHES (3, 4) OF THE PHASE WINDING ARE CONNECTED TO THE PHASE CONDUCTOR, AND THE ENDS (N1, N2) OF THESE BRANCHES – TO A SOURCE OF CONSTANT VOLTAGE. DC POWER SUPPLY COMPRISES TWO STABILIZED, UNIPOLE GROUNDED RECTIFIERS (6, 7) OF A CURRENT WITH OPPOSITE POLARITIES, AND ALSO TWO ELECTRONIC TRANSISTOR SWITCHES (5A, 5B) CONTROLLED BY CONTROL SYSTEM (14) FOR EACH PHASE. CONTROL SYSTEM (14) IS DESIGNED IN SUCH A WAY THAT THE DC POWER SUPPLY OF BOTH BRANCHES (3, 4) OF THE NETWORK WINDING OF ONE PHASE IS CARRIED OUT BY A PULSED METHOD THROUGH CORRESPONDING ELECTRONIC TRANSISTOR SWITCH (5A, 5B), AND DC POWER IS SUPPLIED TO BOTH BRANCHES (3, 4) OF THE MAINS WINDING WITH OPPOSITE POLARITY FROM DIFFERENT RECTIFIERS (6, 7) OF THE CURRENT.

EFFECT: REDUCED POWER OF DC VOLTAGE SOURCES, DEGREE OF DISTORTION OF THE OPERATING CURRENT AND THE CONTROL ERROR, ALONG WITH REDUCED NUMBER OF DC POWER SOURCES.

9 CL, 5 DWG