Patents by Inventor Preston Miller

Preston Miller 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).

  • Apparatus and methods for reducing generator frequency variation
    Patent number: 11418039
    Abstract: A system includes a generator configured to be electrically coupled to a grid, an engine configured to drive the generator, and a solid state generator coupled between the grid and an energy storage device. The system further includes a bias controller configured to detect a frequency of the grid and to responsively provide a bias signal to a speed controller of the engine. The bias controller may include a frequency bias controller configured to generate a frequency bias load sharing signal responsive to the detected frequency of the grid and a load sharing controller that receives the frequency bias load sharing signal and that generates the bias signal responsive to the load sharing signal.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: August 16, 2022
    Assignee: Flexgen Power Systems, Inc.
    Inventors: Tony Olivo, Pasi Taimela, Robert William Johnson, Jr., Mengbin Yang, Preston Miller
  • APPARATUS AND METHODS FOR REDUCING GENERATOR FREQUENCY VARIATION
    Publication number: 20210036638
    Abstract: A system includes a generator configured to be electrically coupled to a grid, an engine configured to drive the generator, and a solid state generator coupled between the grid and an energy storage device. The system further includes a bias controller configured to detect a frequency of the grid and to responsively provide a bias signal to a speed controller of the engine. The bias controller may include a frequency bias controller configured to generate a frequency bias load sharing signal responsive to the detected frequency of the grid and a load sharing controller that receives the frequency bias load sharing signal and that generates the bias signal responsive to the load sharing signal.
    Type: Application
    Filed: February 6, 2019
    Publication date: February 4, 2021
    Inventors: Tony Olivo, Pasi Taimela, Robert William Johnson, JR., Mengbin Yang, Preston Miller