BIPOLAR WINDING OF ASYNCHRONOUS MACHINE Russian patent published in 2012 - IPC H02K17/14 H02K3/28 

FIELD: electricity.

SUBSTANCE: bipolar winding of asynchronous machine consists of twelve coil groups. The first three outputs of winding as per star circuit are formed from the beginning of the first coil group, from the beginning of the fifth coil group, from the beginning of the ninth coil group; the next three outputs of winding as per triangle circuit are formed from combined beginnings of the second, seventh and twelfth coil groups, from combined beginnings of the fourth, sixth and eleventh coil groups, from combined beginnings of the third, eighth and tenth coil groups; at that, end of the first coil group is connected to end of the seventh coil group; the end of the second coil group is connected to the end of the eighth coil group; the end of the fifth coil group is connected to end of the eleventh coil group; end of the sixth coil group is connected to end of the twelfth coil group; end of the ninth coil group is connected to the end of the third coil group; end of the tenth coil group is connected to end of the fourth coil group; at that, the first three outputs of winding as per star circuit and the other three outputs of winding as per triangle circuit are intended to be connected to network during motor operation, and during asynchronous generator operation the above mentioned first three outputs as per star circuit are connected to excitation capacitors; the next three outputs of winding as per triangle circuit are intended to be connected to generator load.

EFFECT: enlarging functional capabilities of the proposed bipolar winding during operation of asynchronous machine with such winding in motor and generator modes; increasing energy properties of asynchronous machine during its operation in generator mode by avoiding the action of upper spatial harmonics; connection of the part of proposed bipolar winding as per triangle circuit eliminates the occurrence of the most expressed third temporary harmonic generated with saturated magnetic conductor.

5 dwg