Patent ID: 11894737
Assignee: GE AVIO S.R.L.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  F | IPC H

Claim 0:
1. A rotating field machine, the rotating field machine comprising:
a stator;
a rotor, the rotor being mounted for rotation with respect to the stator;
wherein the stator comprises:
a first winding, the first winding being an excitation winding configured to receive an excitation current; and
a second winding physically decoupled from the first winding, wherein the second winding is a power winding configured to accommodate power flow through the rotating field machine;

wherein the excitation winding and the power winding are located in the stator such that the excitation winding and power winding are in electrical quadrature with respect to one another;
wherein the excitation winding is associated with a d-axis current and the power winding is associated with a q-axis current for the rotating field machine, the first winding 90° out of electrical phase with respect to the second winding;
the rotating field machine further comprising a power converter and a control device, the control device being configured to operate the rotating field machine in either a starting mode or a generating mode, wherein the control device is configured so that, during the starting mode, both the excitation winding and the power winding are coupled to the power converter, and is further configured so that, in the generating mode, the power winding is decoupled from the power converter.