Hybrid alternator with voltage regulator

Details Hybrid alternator with voltage regulator Hybrid alternator with voltage regulator

1995-06-02

1997-05-20

Stephan, Steven L.

Electricity: single generator systems

Generator control

Combined permanent magnet and wound field structure

322 49, 322 89, H02P 914

Patent

active

056315449

ABSTRACT:
A hybrid alternator includes a stator winding and a rotor winding. The stator winding includes a neutral point having a neutral point voltage and is preferably arranged as a three phase winding with the neutral point being located at the center junction of three stator winding portions arranged in a "Y" configuration. The rotor winding is mounted on a rotor which also includes permanent magnets. The rotor winding has a first end connected to the neutral point on the stator winding and a second end connected to a switching circuit. The rotor winding produces a magnetic flux field that additively combines with the permanent magnetic flux field from the permanent magnets when the switching circuit connects the second end of the rotor winding to a voltage greater than the neutral point voltage and produces a magnetic flux field that subtractively combines with the permanent magnetic flux field when the switching circuit connects the second end to a voltage less than the neutral point voltage.

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