STATOR WINDING OF DUAL-SPEED INDUCTION GENERATOR Russian patent published in 2005 - IPC

FIELD: electromechanical engineering; off-line power supplies for different output voltage frequencies.

SUBSTANCE: proposed stator winding has six pairs of concentrically disposed variable-pitch coil groups with single-layer coils of external coil groups and double-layer ones of internal coil groups. Connected in first phase are first and fourth pairs of coil groups, in second phase, third and sixth coil groups, in third phase, fifth and second coil groups. Differentially connected in each phase are variable-pitch coil groups of different pairs. Starting leads of internal coil groups of first, third, and fifth pairs are interconnected at neutral point. Phase leads are formed by finishing leads of coil groups of first, third, and fifth pairs. Additional phase leads are formed from interconnected starting leads of external coil groups and finishing leads of internal ones of fourth, sixth, and second pairs connected in star or star-star; field capacitors are connected to phase leads in compliance with generator load. Proposed design of this winding makes it possible to produce power supplies for different current frequencies at same voltage and same speed of drive motor.

EFFECT: enlarged functional capabilities.

1 cl, 5 dwg