Rotating back iron for synchronous motors/generators

Details Rotating back iron for synchronous motors/generators Rotating back iron for synchronous motors/generators

2007-11-06

2007-11-06

Le, Dang (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Rotary

C310S091000

Reexamination Certificate

active

10159074

ABSTRACT:
The present invention relates to systems and methods for a synchronous motor/generator including at least one back iron element which is rotated along with a rotor of the motor/generator. Rotation of the back iron(s) mitigates eddy current losses and improves efficiency in the motor/generator. The motor/generator also includes at least one stator winding supported in a non-conductive structure attached to the machine frame. The motor/generator of the present invention can also include at least one permanent magnet located in the rotor. The permanent magnet(s) cooperates with rotor windings to generate a DC magnetic field for the rotor. The components of the motor/generator can be configured in an axial gap topology, radial gap topology, or any other suitable topology.

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Dr. Anthony Anderson; “Generator Core Failures”, http://www.antony-anderson.com/failure1.htm; p. 1-7, Dec. 1, 2001.

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