Patents by Inventor Shanqiang Gu

Shanqiang Gu 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 APPARATUS FOR LIMITING LIGHTNING OVERVOLTAGE OF DIRECT-CURRENT POWER TRANSMISSION LINE
    Publication number: 20250141218
    Abstract: The present invention belongs to the technical field of lightning protection of power transmission lines, and in particular, relates to a method for limiting lightning overvoltage of a direct-current power transmission line. By means of using operation date of a line itself, lightning current monitoring data, and parameters of an environment where the line is located, a line dynamic operation function curve and a line lightning-protection performance function curve are both corrected to obtain a more realistic voltage difference, thus achieving reliable protection actions and state sensing of a lightning arrester on the line. An apparatus for limiting a lightning overvoltage of a direct-current power transmission line is further provided in the present invention to cooperate with the implementation of the method.
    Type: Application
    Filed: December 29, 2024
    Publication date: May 1, 2025
    Inventors: Shanqiang Gu, Jian Wang, Shuai Wan, Wei Cao, Jian Li, Zhe Li, Yuhe Fang, Chun Zhao, Xin Liu, Zihao Liu
  • Method for determining lightning hazard distribution of power network
    Patent number: 9360352
    Abstract: A method for determining a lightning hazard distribution of a power network, includes: deriving a shielding failure lightning hazard distribution of the power network and a back flashover lightning hazard distribution of the power network from the number of ground lightning in each grid and ranges of hazardous currents, and deriving a historical lightning hazard distribution of the power network from a lightning faults database of the power network and the grids; and determining the lightning hazard distribution of the power network by integrating the shielding failure lightning hazard distribution of the power network, the back flashover lightning hazard distribution of the power network and the historical lightning hazard distribution of the power network.
    Type: Grant
    Filed: April 7, 2009
    Date of Patent: June 7, 2016
    Assignees: Wuhan NARI Limited Company of State Grid Electric Power Research Institute, State Grid Electric Power Research Institute, North China Electric Power Research Institute Co., Ltd.
    Inventors: Jiahong Chen, Jian Wang, Xuefang Tong, Yaxin Liu, Qin Zhang, Yi Luo, Haitao Wang, Wanxing Feng, Shanqiang Gu, Xiaolan Li
  • METHOD FOR DETERMINING LIGHTNING HAZARD DISTRIBUTION OF POWER NETWORK
    Publication number: 20100286954
    Abstract: A method for determining a lightning hazard distribution of a power network, includes: deriving a shielding failure lightning hazard distribution of the power network and a back flashover lightning hazard distribution of the power network from the number of ground lightning in each grid and ranges of hazardous currents, and deriving a historical lightning hazard distribution of the power network from a lightning faults database of the power network and the grids; and determining the lightning hazard distribution of the power network by integrating the shielding failure lightning hazard distribution of the power network, the back flashover lightning hazard distribution of the power network and the historical lightning hazard distribution of the power network.
    Type: Application
    Filed: April 7, 2009
    Publication date: November 11, 2010
    Applicants: WUHAN NARI LIMITED COMPANY OF STATE GRID ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID ELECTRIC POWER RESEARCH INSTITUTE, NORTH CHINA ELECTRIC POWER RESEARCH INSTITUTE CO., LTD.
    Inventors: Jiahong Chen, Jian Wang, Xuefang Tong, Yaxin Liu, Qin Zhang, Yi Luo, Haitao Wang, Wanxing Feng, Shanqiang Gu, Xiaolan Li