Patents by Inventor Yongtao TIAN

Yongtao TIAN 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).

  • Fault location method, system and application of two-level VSC type photovoltaic connected bidirectional flexible DC distribution network
    Patent number: 11933835
    Abstract: The present invention relates to the technical field of fault location of distributed energy resources connected flexible DC distribution network, and disclosed a fault location method, system and application of bipolar short-circuit of two-level VSC-type photovoltaic-connected flexible DC distribution network, wherein, directions of positive currents of DC feeders during fault are used to locate a fault section; a bipolar short-circuit distance measurement model covering interactions and responses of systems is established according to equivalent circuits of transient periods; and fault location is done by obtaining a distance to fault with electric parameters and information of the fault.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: March 19, 2024
    Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
    Inventors: Zhihua Zhang, Mingming Sun, Yongtao Tian, Hao Wang, Kun Wang, Chengmin Liu
  • FAULT LOCATION METHOD, SYSTEM AND APPLICATION OF TWO-LEVEL VSC TYPE PHOTOVOLTAIC CONNECTED BIDIRECTIONAL FLEXIBLE DC DISTRIBUTION NETWORK
    Publication number: 20230400498
    Abstract: The present invention relates to the technical field of fault location of distributed energy resources connected flexible DC distribution network, and disclosed a fault location method, system and application of bipolar short-circuit of two-level VSC-type photovoltaic-connected flexible DC distribution network, wherein, directions of positive currents of DC feeders during fault are used to locate a fault section; a bipolar short-circuit distance measurement model covering interactions and responses of systems is established according to equivalent circuits of transient periods; and fault location is done by obtaining a distance to fault with electric parameters and information of the fault.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 14, 2023
    Inventors: Zhihua ZHANG, Mingming SUN, Yongtao TIAN, Hao WANG, Kun WANG, Chengmin LIU