EXCITATION SYSTEM OF SYNCHRONOUS GENERATOR

摘要

New system excitation of classical synchronous generators includes a rotor and a stator. Rotor (secondary) consists of a shaft (18) with bearings 19 and (20), cylindrical iron core (10,11 and 12) and winding (13). Stator (primary) consists of one or two iron cores ( 17) and (27) with windings ( 16 and 26), distributed around the rotor. Rotor is connected to generator shaft or lies on it (together with its winding). This device looks like a transformer in which the middle column with secondary winding is cut out and stuck on a shaft, together with which it rotates between columns with primary windings. Primary windings are powered from a thyristor excitation regulator. In the rotating secondary winding an AC current is induced, because the magnetic field doesn't change its characteristics when rotating. Endings of the secondary winding (13) are connected to a rectifying part of the classic generator, which powers its excitation coils.