| 摘要 |
FIELD: electricity.SUBSTANCE: in excitation system of synchronous generator, external DC source (11) is connected parallel to inductor (3) via common electronic switch (12). Current converter (13) is connected in series with armature winding (2) and connected to bypass (14) and second rectifier (15). Excitation system includes analogue to digital converter (16), two storage registers (17, 18), pulse distributor (19), stable frequency pulse generator (20), substractor (21), reference register (22), numeric comparator (23), two differentiators (24, 26), RS trigger (25), logic OR element (27), START bus (28), limiting generator (29), inverter (30), logic AND element (31), resistors from first 32-1 to Nth 32-N and section electronic switches from first 33-1 to Nth 33-N. Resistance Rof resistor 32-i is determined by formula R=R/2where Ris resistance of resistor 32-1.EFFECT: increased precision of excitation forcing.1 dwg |
