Patents by Inventor Norbert H. Doerry

Norbert H. Doerry has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Excitation control of dual-wound machines for coupling mitigation
    Patent number: 11527942
    Abstract: A dual-wound machine comprises a dual-wound generator supplying power to two separate powered zones. The generator comprises a wound rotor with a field winding and a stator with two sets of phase windings and a field control loop that controls the excitation voltage applied to the field winding and therefore the magnetic field produced by the rotor, in order to maintain a constant field flux in the generator and mitigate dynamic coupling between the two sets of phase windings when supplying power to unbalanced loads.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: December 13, 2022
    Assignees: National Technology & Engineering Solutions of Sandia, LLC, United States of America as represented by the Secretary of the Navy
    Inventors: Lee Joshua Rashkin, Jason C. Neely, Timothy J. McCoy, Norbert H. Doerry
  • Excitation control of dual-wound machines for coupling mitigation
    Publication number: 20200313518
    Abstract: A dual-wound machine comprises a dual-wound generator supplying power to two separate powered zones. The generator comprises a wound rotor with a field winding and a stator with two sets of phase windings and a field control loop that controls the excitation voltage applied to the field winding and therefore the magnetic field produced by the rotor, in order to maintain a constant field flux in the generator and mitigate dynamic coupling between the two sets of phase windings when supplying power to unbalanced loads.
    Type: Application
    Filed: March 26, 2020
    Publication date: October 1, 2020
    Inventors: Lee Joshua Rashkin, Jason C. Neely, Timothy J. McCoy, Norbert H. Doerry