Patents by Inventor Charles Trevor Gaunt

Charles Trevor Gaunt 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: 11843249
    Abstract: A system and method for determining currents for injection into or extraction from a power network are provided. In a method conducted at a point of common coupling to the network, Thévenin parameter data structures for each of a Thévenin voltage, resistance and inductance, are compiled. An offset data structure including offset values is compiled for application to corresponding values of the Thévenin voltage data structure to output an offset Thévenin voltage data structure. Offset values are calculated to satisfy physical constraints associated with the network. An optimal point of common coupling power data structure and the offset Thévenin voltage data structure are used to calculate current components for determining current for injection into or extraction from corresponding lines at the point of common coupling to reduce total electrical transmission losses of the network. The method may use the frequency domain and may include using frequency-dependent Thévenin parameters.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: December 12, 2023
    Assignee: University of Cape Town
    Inventors: Charles Trevor Gaunt, Michel Malengret
  • Publication number: 20220158451
    Abstract: A system and method for determining currents for injection into or extraction from a power network are provided. In a method conducted at a point of common coupling to the network, Thévenin parameter data structures for each of a Thévenin voltage, resistance and inductance, are compiled. An offset data structure including offset values is compiled for application to corresponding values of the Thévenin voltage data structure to output an offset Thévenin voltage data structure. Offset values are calculated to satisfy physical constraints associated with the network. An optimal point of common coupling power data structure and the offset Thévenin voltage data structure are used to calculate current components for determining current for injection into or extraction from corresponding lines at the point of common coupling to reduce total electrical transmission losses of the network. The method may use the frequency domain and may include using frequency-dependent Thévenin parameters.
    Type: Application
    Filed: April 3, 2020
    Publication date: May 19, 2022
    Inventors: Charles Trevor Gaunt, Michel Malengret
  • Patent number: 10164434
    Abstract: Systems and methods for injecting power into or extracting power out of a power network are provided. In a method, Thevenin parameters, in the form of at least a Thevenin voltage and a Thevenin resistance, of an equivalent Thevenin circuit are obtained with respect to each wire of the PCC. A total Thevenin power for all the wires is obtained, based on a specific amount of power at the PCC and the obtained Thevenin parameters. The method calculates an optimal current to be injected into or extracted from the PCC so as to inject or extract a specific amount of power. The calculation is based on the total Thevenin power and the Thevenin parameters. The method controls an injection or extraction of current at the PCC in accordance with the optimal current.
    Type: Grant
    Filed: December 17, 2014
    Date of Patent: December 25, 2018
    Assignee: UNIVERSITY OF CAPE TOWN
    Inventors: Michel Malengret, Charles Trevor Gaunt
  • Publication number: 20160322818
    Abstract: Systems and methods for injecting power into or extracting power out of a power network are provided. In a method, Thevenin parameters, in the form of at least a Thevenin voltage and a Thevenin resistance, of an equivalent Thevenin circuit are obtained with respect to each wire of the PCC. A total Thevenin power for all the wires is obtained, based on a specific amount of power at the PCC and the obtained Thevenin parameters. The method calculates an optimal current to be injected into or extracted from the PCC so as to inject or extract a specific amount of power. The calculation is based on the total Thevenin power and the Thevenin parameters. The method controls an injection or extraction of current at the PCC in accordance with the optimal current.
    Type: Application
    Filed: December 17, 2014
    Publication date: November 3, 2016
    Applicant: UNIVERSITY OF CAPE TOWN
    Inventors: Michel Malengret, Charles Trevor Gaunt