| 摘要 |
<p>A rotor in a electrical machine comprises a magnetic core (11) having at least two poles, a plurality of winding assemblies (21, 22), one for each pole, and a damper winding enclosing at least a portion of the magnetic core (11) and winding assemblies (21, 22). The damper winding has (i) a plurality of electrically conductive rings (33) concentric with a rotational axis of the magnetic core (11) and (ii) a plurality of bars (31, 32) extending parallel to the rotational axis of the magnetic core (11) and connecting to each of the rings (33). A radially outward surface of each of the bars (31, 32) is connected to a respective radially inner surface of each of the rings (33). A spindle (18) of the magnetic core (11) has first and second flat surfaces extending perpendicular to a direct axis of the magnetic core (11). The magnetic core (11) may include first and second projections extending in opposite directions along the quadrature axis. <IMAGE></p> |
