REACTIVE POWER CORRECTOR Russian patent published in 2002 - IPC

FIELD: electrical engineering; converter engineering. SUBSTANCE: reactive power corrector designed for correcting reactive power and regulating active power, as well as for raising power characteristics, reducing power distortions, and regulating input power taken off each phase lead of supply mains has three-phase potential transformer, burden, three single-phase current transformers, three single-phase voltage sensors, three-phase bridge rectifier, three first comparison gates, capacitive filter, adjustable-gain amplifiers, second comparison gates, load voltage selector, correcting voltage adjustment selector, and three identical control units. Each control unit has single-phase rectifier, two singlephase controlled rectifiers with control systems, two intermediate capacitors with voltage sensors, two single-phase inverters with control systems, clocked flip-flop, relay-type two-position hysteresisloop regulator, and differentiating circuit. EFFECT: improved power characteristics, enhanced speed, enlarged control range. 1 dwg