SYSTEM FOR EXCITATION OF SYNCHRONOUS GENERATOR WITH CONTROLLABLE EXTERNAL FORCING Russian patent published in 2023 - IPC H02P9/14 H02P9/30 

FIELD: power engineering.

SUBSTANCE: invention relates to electrical machines, namely to regulation of excitation of synchronous generators used in autonomous electrical energy sources. The excitation system includes synchronous generator (1) with windings of anchor (2) and inductor (3), first rectifier (4). Summing transformer (5) has following windings: primary current (6); primary voltage (7); secondary (8), and control (9), which is connected to voltage adjuster (10). An external DC source is connected in parallel to inductor (3) through common electronic key (12). Current transformer (13) is connected in series with winding of anchor (2), to which shunt (14) and second rectifier (15) are connected. In addition, the system includes analogue-to-digital converter (16), first (17) and second (18) memory register, pulse distributor (19), stable frequency pulse generator (20), subtractor (21), setting register (22), numerical comparator (23), first differentiator (24), RS trigger (25), second differentiator (26), transistor (27), digital-to-analogue converter (28), limiter generator (29), invertor (30), and logical element AND (31). The system has high accuracy of excitation forcing excluding excitation re-regulation in forcing and a simplified circuit providing increased reliability.

EFFECT: increase in the reliability due to simplification of a circuit.

1 cl, 1 dwg