Patents by Inventor Jonathan C. Kim

Jonathan C. Kim 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).

  • ARC FAULT DETECTION USING CURRENT SIGNAL DEMODULATION, OUTLIER ELIMINATION, AND AUTOCORRELATION ENERGY THRESHOLDS
    Publication number: 20230400500
    Abstract: A series PV arc fault detection method and apparatus demodulates a current signal provided by a DC power source to an inverter to eliminate a DC component and periodic noise. Autocorrelation coefficients are generated from the demodulated current signal to monitor noise energy and variation and, based on the noise energy, a determination is made if an arc fault has occurred.
    Type: Application
    Filed: April 19, 2023
    Publication date: December 14, 2023
    Applicants: MERSEN USA EP Corp., Northeastern University
    Inventors: Roy A. Ball, Jonathan C. Kim, Bradley M. Lehman
  • Arc fault detection based on photovoltaic operating characteristics and extraction of pink noise behavior
    Patent number: 11768252
    Abstract: Pink noise analysis, along with unique properties of the photovoltaic (PV) operating point of both the instantaneous current and voltage signal, is used to distinguish arc faults from other noisy loads or PV degradations.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: September 26, 2023
    Assignees: MERSEN USA EP CORP., Northeastern University
    Inventors: Roy A. Ball, Jonathan C. Kim, Bradley M. Lehman
  • ARC FAULT DETECTION BASED ON PHOTOVOLTAIC OPERATING CHARACTERISTICS AND EXTRACTION OF PINK NOISE BEHAVIOR
    Publication number: 20220299578
    Abstract: Pink noise analysis, along with unique properties of the photovoltaic (PV) operating point of both the instantaneous current and voltage signal, is used to distinguish arc faults from other noisy loads or PV degradations.
    Type: Application
    Filed: March 18, 2022
    Publication date: September 22, 2022
    Applicants: MERSEN USA EP CORP., Northeastern University
    Inventors: Roy A. Ball, Jonathan C. Kim
  • Method for AC arc fault detection using multidimensional energy points
    Patent number: 10509067
    Abstract: A method for detecting an arc fault in AC circuits. The method includes monitoring disturbances in an AC voltage signal by analyzing multi-dimensional energy points. A voltage signal is captured and the zero-crossing, minimum peak, and maximum peak are identified. Arcing signatures between the maximum and minimum peaks of the captured AC voltage signal are analyzed to detect an arc fault.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: December 17, 2019
    Assignees: Mersen USA Newburyport-MA, LLC, Northeastern University
    Inventors: Jonathan C. Kim, Bradley M. Lehman, Dorin Octavian Neacsu, Roy Ball
  • METHOD FOR AC ARC FAULT DETECTION USING MULTIDIMENSIONAL ENERGY POINTS
    Publication number: 20190011489
    Abstract: A method for detecting an arc fault in AC circuits. The method includes monitoring disturbances in an AC voltage signal by analyzing multi-dimensional energy points. A voltage signal is captured and the zero-crossing, minimum peak, and maximum peak are identified. Arcing signatures between the maximum and minimum peaks of the captured AC voltage signal are analyzed to detect an arc fault.
    Type: Application
    Filed: July 6, 2017
    Publication date: January 10, 2019
    Applicants: Mersen USA Newburyport-MA, LLC, Northeastern University
    Inventors: Jonathan C. Kim, Bradley M. Lehman, Dorin Octavian Neacsu, Roy Ball