EXCITATION SYSTEM OF SYNCHRONOUS GENERATOR WITH FORCING AND PARALLEL OPERATION CORRECTOR Russian patent published in 2024 - IPC H02P9/14 H02P9/30 

FIELD: electrical machines.

SUBSTANCE: invention relates to the excitation regulation of synchronous generators used in autonomous sources of electrical energy. The excitation system includes a synchronous generator (1) having an armature winding (2) and an inductor winding (3), which is connected to the output of the first rectifier (4), summing transformer (5) with primary current winding (6), primary voltage winding (7), secondary winding (8) and control winding (9), which is connected to the output of the voltage corrector (10), external constant source current (11), electronic key (12), current transformer (13), shunt (14), to which the second rectifier (15) is connected, analogue-to-digital converter (ADC) (16), first (17) and second (18) memory registers, pulse distributor (19), generator (20) of stable frequency pulses, subtractor (21) and master register (22), first numerical comparator (23), first differentiator (24), RS flip-flop (25), second differentiator 26, transistor (27), digital-to-analogue converter (DAC) (28), shaper-limiter (29), inverter (30), first logical element AND (31). The excitation system is additionally equipped with a reactive power sensor with a digital output (32), a second numerical comparator (33), a pulse divider (34), a second (35) and third (36) AND logic elements, a PARALLEL OPERATION switch (37) and a reverse counter (38).

EFFECT: increased forcing capacity of the generator excitation system and maintaining the reactive power balance during the transition process during parallel operation.

1 cl, 1 dwg