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US 11,936,252 B2Granted
Exciter windings for wide speed operation
AssigneeHamilton Sundstrand Corporation (HSC)
InventorsAndreas C. Koenig, Dhaval Patel
Life of this patent
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Abstract
An exciter comprises a stator armature defining a plurality of circumferentially spaced apart winding slots separated by respective stator teeth. first exciter winding with multiple phases, a second exciter winding with multiple phases. The individual windings of the first and second exciter windings are seated in the winding slots. For each phase of each of the first and second exciter windings there are two leads configured to connect to a generator control unit (GCU).
Claims12
An exciter comprising:
- a stator armature defining a plurality of circumferentially spaced apart winding slots separated by respective stator teeth;
- a first exciter winding, wherein individual windings of the first exciter winding are seated in the winding slots;
- a second exciter winding, wherein individual windings of the second exciter winding are seated in the winding slots;
- and
- wherein for each phase of each of the first and second exciter windings there are two leads configured to connect to a generator control unit (GCU), wherein a main machine is electrically connected to a power bus through a main machine output line, wherein the generator control unit includes a power supply, a controller, and a converter, wherein the controller is configured to receive input from the main machine output line, wherein the controller is configured to switch between the first exciter winding and a second exciter winding for power conversion based on the input received from the main machine output line, wherein the first exciter winding is used at a first shaft speed and the second exciter winding is used at a second shaft speed, the first speed being different than the second speed.
2 more elements
A generator system comprising:
- a generator;
- and
- a generator control unit electrically connected to the generator, the generator having an exciter, a rectifier, and a main machine operatively connected to a rotating shaft, the exciter including,
- a first exciter winding with multiple phases and a second exciter winding with multiple phases, wherein the main machine is electrically connected to a power bus through a main machine output line, wherein the generator control unit includes a power supply, a controller, and a converter, wherein the controller is configured to receive input from the main machine output line, wherein the controller is configured to switch between the first exciter winding and a second exciter winding for power conversion based on the input received from the main machine output line, wherein the first exciter winding is used at a first shaft speed and the second exciter winding is used at a second shaft speed, the first speed being different than the second speed.
1 more element
Dependencies are inferred from the claim text.