Patents by Inventor Bartosz Jan Brusilowicz

Bartosz Jan Brusilowicz 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).

  • Reference signal generating method for distance and directional protection elements
    Patent number: 11043803
    Abstract: The present disclosure relates to generating reference signals for distance and directional elements in power systems. For example, an intelligent electronic device (IED) may receive A-phase, B-phase, and C-phase electrical measurements of a power system. The IED may transform the A-phase, B-phase, and C-phase measurements to a d-component, a q-component, and a 0-component. The IED may include an adaptive notch filter that reduces or eliminates a double frequency component that may be present when step changes of frequency and/or amplitude occur and/or when the A-phase, B-phase, and C-phase measurements have different amplitudes. By reducing the double frequency component, the IED may generate a more accurate ? which may allow for more accurately tracking changes to the polarizing source. Further, the IED may separately add inertia to the estimated angular frequency used in generating a reference signal.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: June 22, 2021
    Assignee: Schweitzer Engineering Laboratories, Inc.
    Inventor: Bartosz Jan Brusilowicz
  • REFERENCE SIGNAL GENERATING METHOD FOR DISTANCE AND DIRECTIONAL PROTECTION ELEMENTS
    Publication number: 20210028611
    Abstract: The present disclosure relates to generating reference signals for distance and directional elements in power systems. For example, an intelligent electronic device (IED) may receive A-phase, B-phase, and C-phase electrical measurements of a power system. The IED may transform the A-phase, B-phase, and C-phase measurements to a d-component, a q-component, and a 0-component. The IED may include an adaptive notch filter that reduces or eliminates a double frequency component that may be present when step changes of frequency and/or amplitude occur and/or when the A-phase, B-phase, and C-phase measurements have different amplitudes. By reducing the double frequency component, the IED may generate a more accurate ? which may allow for more accurately tracking changes to the polarizing source. Further, the IED may separately add inertia to the estimated angular frequency used in generating a reference signal.
    Type: Application
    Filed: July 22, 2019
    Publication date: January 28, 2021
    Applicant: Schweitzer Engineering Laboratories, Inc.
    Inventor: Bartosz Jan Brusilowicz