Patents by Inventor Andrew Roscoe

Andrew Roscoe 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).

  • Patent number: 12328008
    Abstract: A method of supplying power to an electrically isolated wind farm is provided including a plurality of wind turbines and a power generator. In a low wind condition, where a wind speed falls below a threshold value, active power and reactive power is supplied from the power generator to a first wind turbine and wind farm passive components. In a second operation mode after the first operation mode, active power is supplied from the power generator to the first wind turbine and a second wind turbine, and reactive power is supplied/consumed by the first wind turbine to the cables and transformers between it and the second wind turbine.
    Type: Grant
    Filed: March 22, 2022
    Date of Patent: June 10, 2025
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Paul Brian Brogan, Douglas Elliott, Thyge Knueppel, Andrew Roscoe
  • Publication number: 20240195183
    Abstract: A method of supplying power to an electrically isolated wind farm is provided including a plurality of wind turbines and a power generator. In a low wind condition, where a wind speed falls below a threshold value, active power and reactive power is supplied from the power generator to a first wind turbine and wind farm passive components. In a second operation mode after the first operation mode, active power is supplied from the power generator to the first wind turbine and a second wind turbine, and reactive power is supplied/consumed by the first wind turbine to the cables and transformers between it and the second wind turbine.
    Type: Application
    Filed: March 22, 2022
    Publication date: June 13, 2024
    Inventors: Paul Brian Brogan, Douglas Elliott, Thyge Knueppel, Andrew Roscoe
  • Patent number: 11394317
    Abstract: A converter network bridge controller for a power converter hardware being connectable to an alternating current electricity network is provided. The controller includes an output unit configured for generating a quadrature voltage component reference to a PWM modulator which determines the switching of the power converter hardware, wherein the quadrature voltage component reference includes a first signal and a second signal. The output unit includes a first part and a second part. The first part is configured for generating the first signal based on a current reference for an active current to be generated by the power converter hardware. The second part is configured for providing the second signal to reduce a difference between a converter active current component of measured feedback current and the current reference for active current.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: July 19, 2022
    Assignee: SIEMENS GAMESA RENEWABLE ENERGY A/S
    Inventors: Paul Brian Brogan, Thyge Knueppel, Andrew Roscoe, Douglas Elliott
  • Publication number: 20210021209
    Abstract: A converter network bridge controller for a power converter hardware being connectable to an alternating current electricity network is provided. The controller includes an output unit configured for generating a quadrature voltage component reference to a PWM modulator which determines the switching of the power converter hardware, wherein the quadrature voltage component reference includes a first signal and a second signal. The output unit includes a first part and a second part. The first part configured for generating the first signal based on a current reference for an active current to be generated by the power converter hardware. The second part is configured for providing the second signal to reduce a difference between a converter active current component of measured feedback current and the current reference for active current.
    Type: Application
    Filed: February 14, 2019
    Publication date: January 21, 2021
    Inventors: Paul Brian Brogan, Thyge Knueppel, Andrew Roscoe, Douglas Elliott
  • Publication number: 20050075812
    Abstract: Representative embodiments are directed to systems and methods for processing analyzer trace data of a multi-tone signal to more accurately estimate the frequencies and amplitudes of the tones of the multi-tone signal. Specifically, trace data may be processed to determine peak trace points. For each identified peak point, an error minimization algorithm minimizes the sum of differences between a plurality of trace points surrounding the respective peak point and the predicted Fourier transform through a raised-cosine window of a theoretical tone. The result of the minimization algorithm identifies the amplitude and frequency of a tone of the multi-tone signal with an appreciable degree of accuracy.
    Type: Application
    Filed: September 18, 2003
    Publication date: April 7, 2005
    Inventor: Andrew Roscoe