Patents by Inventor Yajing Gao

Yajing Gao 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).

  • Method and device for obtaining three-phase power flow of power distribution network with ungrounded transformers
    Patent number: 9625929
    Abstract: A method for obtaining a three-phase power flow of a power distribution network and a device for obtaining a three-phase power flow of a power distribution network are provided. The method includes steps of: selecting a three-phase power transformer in the power distribution network and configuring a secondary side of the three-phase power transformer with an ungrounded neutral connection, such that the three-phase power transformer satisfies a preset voltage-current relationship; adding a constraint condition to the preset voltage-current relationship to correct a three-phase admittance matrix of the three-phase power transformer; and applying the three-phase admittance matrix to a preset algorithm to obtain a three-phase power flow of the power distribution network.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: April 18, 2017
    Assignees: Tsinghua University, Guizhou Power Grid Information & Telecommunication Co., Ltd.
    Inventors: Wenchuan Wu, Boming Zhang, Qing Zou, Hongbin Sun, Fei Li, Qinglai Guo, Yi Liu, Yajing Gao, Hongjia Miao, Yuan Ji
  • METHOD AND DEVICE FOR OBTAINING THREE-PHASE POWER FLOW OF POWER DISTRIBUTION NETWORK WITH UNGROUNDED TRANSFORMERS
    Publication number: 20150199301
    Abstract: A method for obtaining a three-phase power flow of a power distribution network and a device for obtaining a three-phase power flow of a power distribution network are provided. The method comprises steps of: selecting a three-phase power transformer with an ungrounded neutral connection in the power distribution network; correcting a three-phase admittance matrix of the three-phase power transformer; and applying the three-phase admittance matrix to a preset algorithm to obtain a three-phase power flow of the power distribution network.
    Type: Application
    Filed: May 30, 2014
    Publication date: July 16, 2015
    Applicants: TSINGHUA UNIVERSITY, Guizhou Power Grid Information & Telecommunication Co., Ltd.
    Inventors: Wenchuan Wu, Boming Zhang, Qing Zou, Hongbin Sun, Fei Li, Qinglai Guo, Yi Liu, Yajing Gao, Hongjia Miao, Yuan Ji