| 摘要 |
A permanent-magnet generator with flux control means, which has a device simple in construction to increase or decrease air gaps for flux path in response to an rpm of a rotor, regulating a magnetic flux flowing in a stator. The permanent-magnet generator is envisaged further curbing the magnetic flux flowing in the stator at high-speed rotation of the rotor, maintaining an output voltage of the generator within prescribed limits at any given time. The stator winding is made up of a three-phase output winding wound on the stator teeth and other three-phase flux regulator winding, the latter winding being reverse in winding direction to the former. The flux regulator winding is connected to the output winding through a flux regulator switch. With the permanent-magnet generator constructed as stated earlier, the on-off operation of the flux regulator switch conjoins with increase or decrease of the air gap for flux path by the flux regulator ring to maintain the output voltage of the generator within a prescribed voltage value.
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