Patents by Inventor CHUJIE ZENG

CHUJIE ZENG 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).

  • Forced oscillation source location determination based on oscillation mode angle analysis using synchrophasor data
    Patent number: 11340271
    Abstract: A method includes performing by a processor: receiving a plurality of synchrophasor measurements of a power system signal associated with a time interval from a plurality of phasor measurement units (PMUs), respectively, each of the plurality of synchrophasor measurements including a phase angle, frequency value, and a timestamp associated with the synchrophasor measurement; determining, for each of the plurality of PMUs, a dominant mode frequency of a forced oscillation signal component of the power system signal based on the frequency value and the phase angle; determining, for each of the plurality of PMUs, a mode angle of the forced oscillation signal component at the dominant mode frequency; and determining a geographic forced oscillation source location for a source of the forced oscillation signal component based on the plurality of mode angles associated with each of the plurality of PMUs, respectively, and geographic locations of the plurality of PMUs.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: May 24, 2022
    Assignee: UNIVERSITY OF TENNESSEE RESEARCH FOUNDATION
    Inventors: Yilu Liu, Weikang Wang, Wenpeng Yu, Chujie Zeng, Lin Zhu
  • FORCED OSCILLATION SOURCE LOCATION DETERMINATION BASED ON OSCILLATION MODE ANGLE ANALYSIS USING SYNCHROPHASOR DATA
    Publication number: 20220034947
    Abstract: A method includes performing by a processor: receiving a plurality of synchrophasor measurements of a power system signal associated with a time interval from a plurality of phasor measurement units (PMUs), respectively, each of the plurality of synchrophasor measurements including a phase angle, frequency value, and a timestamp associated with the synchrophasor measurement; determining, for each of the plurality of PMUs, a dominant mode frequency of a forced oscillation signal component of the power system signal based on the frequency value and the phase angle; determining, for each of the plurality of PMUs, a mode angle of the forced oscillation signal component at the dominant mode frequency; and determining a geographic forced oscillation source location for a source of the forced oscillation signal component based on the plurality of mode angles associated with each of the plurality of PMUs, respectively, and geographic locations of the plurality of PMUs.
    Type: Application
    Filed: July 31, 2020
    Publication date: February 3, 2022
    Inventors: YILU LIU, WEIKANG WANG, WENPENG YU, CHUJIE ZENG, LIN ZHU