Patents by Inventor Thay Chau

Thay Chau 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).

  • Method for mitigating negative sequence effect resulting from non-symmetrical short circuit failure of synchronous electric machine based systems
    Patent number: 8125747
    Abstract: A drive system for a multi-phase electric machine with a permanent magnet rotor, the drive system may comprise conduction paths for each phase. Detectors on each of the conduction paths may determine electrical condition of the conduction path. At least one selectable interconnection path may be present between all of the conduction paths and at least one selectable interconnection path may be operable to connect all of the conduction paths together responsively to at least one of the detectors determining that the electrical condition of its respective electrical path is representative of a predetermined electrical fault condition so that heating of the rotor during continued rotation of the rotor is prevented.
    Type: Grant
    Filed: March 16, 2009
    Date of Patent: February 28, 2012
    Assignee: Honeywell International Inc.
    Inventors: Evgeni Ganev, Leroy Allen Fizer, Cuong Nguyen, Thay Chau
  • METHOD FOR MITIGATING NEGATIVE SEQUENCE EFFECT RESULTING FROM NON-SYMMETRICAL SHORT CIRCUIT FAILURE OF SYNCHRONOUS ELECTRIC MACHINE BASED SYSTEMS
    Publication number: 20100232076
    Abstract: A drive system for a multi-phase electric machine with a permanent magnet rotor, the drive system may comprise conduction paths for each phase. Detectors on each of the conduction paths may determine electrical condition of the conduction path. At least one selectable interconnection path may be present between all of the conduction paths. The at least one selectable interconnection path may be operable to connect all of the conduction paths together responsively to one or more of the detectors determining that the electrical condition of its respective electrical path is representative of a predetermined electrical fault condition so that heating of the rotor during continued rotation of the rotor is prevented.
    Type: Application
    Filed: March 16, 2009
    Publication date: September 16, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventors: EVGENI GANEV, LEROY ALLEN FIZER, CUONG NGUYEN, THAY CHAU