VOLTAGE AND FREQUENCY REGULATOR FOR OFF-LINE INDUCTION GENERATOR Russian patent published in 2003 - IPC

FIELD: electrical engineering; induction generator voltage and frequency regulation. SUBSTANCE: device affording regulation of off-line induction generator voltage and frequency has induction generator connected to field capacitors; series-connected frequency changer, output filter, current transformers unit, potential transformers unit, and output terminals; cosine synchronization unit connected to induction generator output and to control signal shaping units; connected to the latter are also master frequency oscillator and frequency regulator. Each control-signal shaping unit has first, second, and third pulse shapers, two AND gates, two pulse distributors, two pulse amplifiers, sawtooth voltage generator, voltage divider, current sensor, and type-of-curve generator. EFFECT: reduced mass of field capacitors, enhanced regulation quality in asymmetric modes of operation. 1 cl, 2 dwg