Methods and apparatus for controlling electromagnetic flux in dynamoelectric machines
AssigneeGeneral Electric Company
InventorDaniel M. Saban
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Abstract
A method of adjusting speed and torque of a dynamoelectric machine is disclosed. The machine includes a main winding, and a divided winding each configured to generate a plurality of poles. The method includes the steps of energizing the main winding and controlling the amount of electromagnetic flux at each pole.
Claims23
A method of adjusting speed and torque of a dynamoelectric machine, the machine including a main winding, an auxiliary winding, and a divided winding connected in series with the auxiliary winding, the divided winding configured to generate a plurality of poles, said method comprising the steps of:
- energizing the main winding;
- controlling an amount of electromagnetic flux at each pole;
- and
- energizing at least one set of poles of the divided winding with a power source, the power source energizing both the main winding and the divided winding.
A dynamoelectric machine comprising:
- a stator mounted in a housing and comprising a bore therethrough, said stator further comprising a main winding comprising a plurality of poles and configured to be connected to a power source, an auxiliary winding configured to be connected to a power source to provide an increased amount of torque to at least one of the plurality of poles, and a divided winding configured to be connected to the power source to change an amount of electromagnetic flux generated in at least one of the plurality of poles, said divided winding comprising a first plurality of consecutive windings wound about a plurality of “odd” poles and a second plurality of consecutive windings wound about a plurality of“even” poles;
- and
- a rotor comprising a rotor core having a bore therethrough and a substantially straight shaft extending through said rotor core bore, said rotor rotatably mounted in the housing and extending through said stator bore, said shaft rotatably supported by a set of bearings.
Dependencies are inferred from the claim text.