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US 2008/0290764 A1Published application
Electrodynamic machine control
AssigneeHamilton Sundstrand Corporation
InventorDavid G. Halsey
Life of this patent
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Abstract
An electrodynamic machine has a winding and a switching arrangement effectively dividing the winding into individually controllable portions. During a first operating condition, current flows through the entire winding in a manner controlled by the switching arrangement. In a second condition, the switching arrangement restricts current flow to only a portion of the winding. The second condition effectively reduces the inductive capacity of the winding.
Claims16
An electrodynamic machine, comprising:
- a winding;
- and
- a switching arrangement associated with the winding, wherein the switching arrangement permits a flow of current through at least a first portion of the winding in a first condition and restricts a flow of current to only a second, smaller portion of the winding in a second, different condition.
A method of controlling an electrodynamic machine comprising:
- permitting current to flow through an entire winding in a first condition;
- and
- restricting the current to flow through only a portion of the winding in a second, different condition.
Dependencies are inferred from the claim text.