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US 2025/0218655 A1Published application
Wireless excitation system
OwnerTsarafidy Raminosoa, Jason L. Pries +2inventors
InventorsTsarafidy Raminosoa, Jason L. Pries, Randy H. Wiles, Jonathan P. Wilkins
Life of this patent
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Abstract
A system is provided for transferring power between a stator and a rotor of an excitation system. The stator and the rotor may form part of a rotary transformer that includes a primary winding and a secondary winding, where power is transferred from the primary winding to the secondary winding or conversely from the secondary winding to the primary winding.
Claims50
An excitation system comprising:
- a rotary transformer including:
- a stator that includes a primary winding and a primary ferromagnetic-material core, wherein the primary winding includes first and second portions spaced apart to define a stator gap (PG),
- a shaft configured to rotate relative to the stator during operation of the rotary transformer,
- a rotor affixed to the shaft to rotate along with the shaft while being spaced apart from the stator by a predetermined gap (G) defined at least in part by the stator gap, the rotor including a secondary winding, and
- a rotor support affixed to the rotor and configured to encapsulate the rotor, the rotor support being disposed within the stator gap between the primary winding and the secondary winding;
- and
- a primary compensation circuit electrically coupled with the primary winding of the stator, the primary compensation circuit configured to be in resonance with the primary winding,
- wherein the primary winding and the secondary winding have radial overlap.
5 more elements
-6. (canceled)
-13. (canceled)
-41. (canceled)
An excitation system comprising:
- a rotary transformer including:
- a stator that includes a primary winding, wherein the primary winding includes first and second portions spaced apart to define a stator gap;
- a shaft configured to rotate relative to the stator during operation of the rotary transformer,
- a rotor affixed to the shaft to rotate along with the shaft, the rotor including a secondary winding operably spaced apart from the primary winding by a gap defined at least in part by the stator gap, and
- a rotor support affixed to the rotor, the rotor support being disposed within the stator gap between the primary winding and the secondary winding;
- and
- a primary compensation circuit electrically coupled with the primary winding of the stator, the primary compensation circuit configured to be in resonance with the primary winding,
- wherein the primary winding and the secondary winding have radial overlap.
5 more elements
-52. (canceled)
-56. (canceled)
A wireless power system comprising:
- a stator having a first winding that includes first and second portions spaced apart to define a stator gap;
- a rotor having a second winding operably spaced apart from the first winding by a gap defined at least in part by the stator gap, the rotor operable to rotate relative to the stator;
- a rotor support affixed to the rotor, the rotor support being disposed within the stator gap between first winding and the second winding;
- a shaft coupled to the rotor, the shaft configured to rotate relative to the stator in conjunction with the rotor, wherein the shaft, the stator, and the rotor are disposed relative to each other in a radial-flux configuration;
- and
- a first compensation circuit electrically coupled with the first winding of the stator, the first compensation circuit configured to be in resonance with the first winding.
3 more elements
-69. (canceled)
Dependencies are inferred from the claim text.