Patents by Inventor Brooke Armstrong Stratton

Brooke Armstrong Stratton 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).

  • Control system and method for voltage stabilization in electric power system
    Patent number: 6573691
    Abstract: Variable shunt and series connected reactors are used in a complimentary combination in an electric arc furnace to provide improved flicker control. A power control system for an time-varying AC load, such as an electric arc furnace, connected to an AC power supply line includes a first variable reactance intermediate the power supply line and the load, and a second variable reactance connected in parallel with the power supply line. A control system is provided for (i) monitoring load current and adjusting the first variable reactance in response to changes in the monitored load current; and (ii) monitoring reactive power draw by the load and adjusting the second variable reactance in response to changes in the monitored reactive power draw. The first variable reactance and second variable reactance are each primarily used to mitigate flicker at different times during the load operation.
    Type: Grant
    Filed: October 17, 2001
    Date of Patent: June 3, 2003
    Assignees: Hatch Associates Ltd., Satcon Power Systems Canada Ltd.
    Inventors: Thomas Lai Wai Ma, Brooke Armstrong Stratton
  • CONTROL SYSTEM AND METHOD FOR VOLTAGE STABILIZATION IN ELECTRIC POWER SYSTEM
    Publication number: 20030076075
    Abstract: Variable shunt and series connected reactors are used in a complimentary combination in an electric arc furnace to provide improved flicker control. A power control system for an time-varying AC load, such as an electric arc furnace, connected to an AC power supply line includes a first variable reactance intermediate the power supply line and the load, and a second variable reactance connected in parallel with the power supply line. A control system is provided for (i) monitoring load current and adjusting the first variable reactance in response to changes in the monitored load current; and (ii) monitoring reactive power draw by the load and adjusting the second variable reactance in response to changes in the monitored reactive power draw. The first variable reactance and second variable reactance are each primarily used to mitigate flicker at different times during the load operation.
    Type: Application
    Filed: October 17, 2001
    Publication date: April 24, 2003
    Inventors: Thomas Lai Wai Ma, Brooke Armstrong Stratton