Patents by Inventor Yayao ZHANG

Yayao ZHANG 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 for impedance prediction of a voltage source converter under variable operating points
    Patent number: 11533043
    Abstract: A method for predicting impedance of a voltage source converter under variable operating points is disclosed, pertaining to the field of analysis of small signal stability in an electrical power system. When the parameters and topology of the control system are fully unknown, the theoretical expression of impedance cannot be applied to a voltage source converter, and impedance is highly dependent on operating points. A fully decoupled impedance model disclosed is constructed in this disclosure.
    Type: Grant
    Filed: March 25, 2021
    Date of Patent: December 20, 2022
    Assignee: HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Qi Qiu, Meng Zhan, Yifan Huang, Yayao Zhang
  • METHOD FOR IMPEDANCE PREDICTION OF A VOLTAGE SOURCE CONVERTER UNDER VARIABLE OPERATING POINTS
    Publication number: 20220200579
    Abstract: A method for predicting impedance of a voltage source converter under variable operating points is disclosed, pertaining to the field of analysis of small signal stability in an electrical power system. When the parameters and topology of the control system are fully unknown, the theoretical expression of impedance cannot be applied to a voltage source converter, and impedance is highly dependent on operating points. A fully decoupled impedance model disclosed is constructed in this disclosure.
    Type: Application
    Filed: March 25, 2021
    Publication date: June 23, 2022
    Inventors: Qi QIU, Meng ZHAN, Yifan HUANG, Yayao ZHANG