Patents by Inventor Gilburt L. CHIANG

Gilburt L. CHIANG 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).

  • Online state estimation and topology identification using advanced metering infrastructure (AMI) measurements
    Patent number: 11824354
    Abstract: A computer system provides online state estimation (SE) and topology identification (TI) using advanced metering infrastructure (AMI) measurements in a distribution network. The computer system obtains input data including the AMI measurements, a network configuration, and line parameters; solves an SE and TI problem formulated from the input data and power equations of the distribution network; and periodically updates states and topology of the distribution network during power system operation. To solve the SE and TI problem, the computer system constructs a mixed-integer convex approximation programming (MICP) model to obtain an initial topology; generates neighboring spanning trees according to the MICP model and the initial topology; evaluates performance of each neighboring spanning tree with a matching index that is an indication of power flow performance; and chooses a tree topology of a neighboring spanning tree having a minimum matching index as a final network topology of the distribution network.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: November 21, 2023
    Assignee: Bigwood Technology, Inc.
    Inventors: Lin Zeng, Dong Liang, Hsiao-Dong Chiang, Gilburt L Chiang
  • Online State Estimation and Topology Identification Using Advanced Metering Infrastructure (AMI) Measurements
    Publication number: 20230072795
    Abstract: A computer system provides online state estimation (SE) and topology identification (TI) using advanced metering infrastructure (AMI) measurements in a distribution network. The computer system obtains input data including the AMI measurements, a network configuration, and line parameters; solves an SE and TI problem formulated from the input data and power equations of the distribution network; and periodically updates states and topology of the distribution network during power system operation. To solve the SE and TI problem, the computer system constructs a mixed-integer convex approximation programming (MICP) model to obtain an initial topology; generates neighboring spanning trees according to the MICP model and the initial topology; evaluates performance of each neighboring spanning tree with a matching index that is an indication of power flow performance; and chooses a tree topology of a neighboring spanning tree having a minimum matching index as a final network topology of the distribution network.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 9, 2023
    Applicant: Bigwood Technology, Inc.
    Inventors: Lin ZENG, Dong LIANG, Hsiao-Dong CHIANG, Gilburt L. CHIANG