Alternator with voltage regulation
AssigneeMoteurs Leroy-Somer
InventorsEmile Mouni, Samuel Moser
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Abstract
The present invention relates to an alternator to be electrically connected to a load, the alternator including a rotor including: a rotary field, an excitation winding, a dissipative component and a switchover system allowing the rotary field to be connected selectively to the excitation winding or to the dissipative component, and a controller controlling the switchover system so as to regulate the current in the rotary field and, in response to a reduction in the load applied to the alternator, connects the dissipative component to the rotary field to dissipate the inductive energy that has built up in the rotary field.
Claims22
Alternator to be electrically linked to a load, the alternator comprising:
- a rotor comprising:
- a rotary field of a primary machine,
- an exciting armature
- a dissipative component, and
- a switching system making it possible to selectively link the rotary field to the exciting armature and to the dissipative component, and
- a controller controlling the switching system so as to regulate current in the rotary field by pulse width modulation and, in response to a reduction in the load applied to the alternator, link the dissipative component to the rotary field to dissipate inductive energy stored in the rotary field, the duty cycle and the pulse width modulation being a function of the output voltage of the primary machine.
Alternator according to claim 4, including a coiled exciting inductor.
Dependencies are inferred from the claim text.