| 摘要 |
FIELD: reactive power correction in three-phase loads. ^ SUBSTANCE: proposed reactive-power corrector has three-phase transformer, three single-phase inverters with control systems, rectifier, three single-phase current transformers, potential transformer, three single-phase reactive-current sensors, three voltage sensors, three comparison gates, and load; in addition it is provided with newly introduced unit of off-line voltage inverters, active and reactive power computing unit, active and reactive power ac component computing unit, desired current computing unit, off-line voltage inverter control unit, and current transformers of off-line voltage inverters. ^ EFFECT: enhanced mean power factor of enterprises, reduced maintenance charges. ^ 1 cl, 1 dwg |
