Patents by Inventor Lee Joshua Rashkin

Lee Joshua Rashkin 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).

  • 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
  • Patent number: 10326279
    Abstract: Systems and methods for identifying an island condition in a power distribution system and disconnecting distributed generators in the case of islanding. The systems and methods are used to enable reliable detection of island formation with high false-trip immunity, for any combination of distributed energy resources, and for distributed energy resources using grid support functions.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: June 18, 2019
    Assignees: Northern Plains Power Technologies, Sandia Corporation
    Inventors: Michael Ropp, Scott Perlenfein, Jason C. Neely, Sigifredo Gonzalez, Lee Joshua Rashkin
  • Publication number: 20170077703
    Abstract: Systems and methods for identifying an island condition in a power distribution system and disconnecting distributed generators in the case of islanding. The systems and methods are used to enable reliable detection of island formation with high false-trip immunity, for any combination of distributed energy resources, and for distributed energy resources using grid support functions.
    Type: Application
    Filed: July 18, 2016
    Publication date: March 16, 2017
    Inventors: Michael Ropp, Scott Perlenfein, Jason C. Neely, Sigifredo Gonzalez, Lee Joshua Rashkin