| 摘要 |
A rotation device rotates a rotor iron core (5) having a rotor winding (4) together with a commutator (8) with respect to a fixed iron core (2) having a field winding (1) and being excited. The rotation device includes a brush (12) in contact with the commutator (8) and rotated by a synchronous motor (9), a DC power source (14) for applying DC voltage to the brush (12), a windmill (7) for rotating a rotor (6), and an AC power source connected as an exiting power source of the field winding (1) and a drive power source of the synchronous motor (9). |
