THREE-PHASE VOLTAGE REGULATOR Russian patent published in 1998 - IPC

FIELD: no-break power supplies ensuring steady rated output voltage in case of input voltage drop below rated value; voltage-controlled drives. SUBSTANCE: each phase of regulator has series- connected LC filter with chokes 1 and capacitors 2, input switch with fully controlled valves 3 and diodes 4, output filter built up of chokes 5, and loads 6; regulator also has storage chokes 7 and storage capacitors 8, three-phase bridge rectifier built around diodes 9-14, and output switch 15 in the form of fully controlled valve. EFFECT: enlarged functional capabilities; reduced number of controlled valves. 2 dwg