Patents by Inventor Denis Rigot

Denis Rigot 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).

  • Steam turbine governing system for maintaining synchronization and process for performing the same
    Patent number: 9309779
    Abstract: The invention relates to a steam turbine governing system for maintaining synchronization between an electrical grid and an electric generator, driven by a steam turbine, after the occurrence of a grid short circuit at the electrical grid. The governing system includes a governor adapted to control an arrangement of valves for regulating the steam flow in the steam turbine and means for measuring the voltage drop at the output of the electric generator. The governing system further includes means for measuring the electric power drop at the output of the electric generator. The governor is adapted to initiate operation of the arrangement of valves of the steam turbine in response to a voltage drop exceeding a predetermined value and to an electric power drop exceeding a predetermined value.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: April 12, 2016
    Assignee: ALSTOM Technology Ltd
    Inventors: Martin Toulemonde, Caroline Jaillot, Denis Rigot
  • STEAM TURBINE GOVERNING SYSTEM FOR MAINTAINING SYNCHRONIZATION AND PROCESS FOR PERFORMING THE SAME
    Publication number: 20140294561
    Abstract: The invention relates to a steam turbine governing system for maintaining synchronization between an electrical grid and an electric generator, driven by a steam turbine, after the occurrence of a grid short circuit at the electrical grid. The governing system includes a governor adapted to control an arrangement of valves for regulating the steam flow in the steam turbine and means for measuring the voltage drop at the output of the electric generator. The governing system further includes means for measuring the electric power drop at the output of the electric generator. The governor is adapted to initiate operation of the arrangement of valves of the steam turbine in response to a voltage drop exceeding a predetermined value and to an electric power drop exceeding a predetermined value.
    Type: Application
    Filed: March 25, 2014
    Publication date: October 2, 2014
    Inventors: Martin TOULEMONDE, Caroline Jaillot, Denis Rigot