Patents by Inventor Jiefeng Wan

Jiefeng Wan 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).

  • Partial discharge (PD) detection apparatus for gas-insulated equipment
    Patent number: 11821932
    Abstract: A partial discharge (PD) detection apparatus for gas-insulated equipment includes a photon collector, an optical splitter, a first photoelectric conversion module, an ultraviolet fluorescent crystal, a second photoelectric conversion module, and a signal processing module, where the ultraviolet fluorescent crystal is configured to convert a second optical radiation signal into an optical radiation signal of an ultraviolet fluorescence band, and the signal processing module is configured to calculate first apparent intensity based on a first voltage signal output by the first photoelectric conversion module, calculate second apparent intensity based on a second voltage signal output by the second photoelectric conversion module, and determine discharge intensity of the optical radiation based on a ratio of the second apparent intensity to the first apparent intensity. Technical solutions of the present disclosure are not affected by an unknown distance between a discharge position and a detection point.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: November 21, 2023
    Assignee: Wuxi Power Supply Branch of State Grid Jiangsu Electric Power Co., Ltd.
    Inventors: Jin Miao, Ping Chen, Yin Gu, Bin Fei, Xi Wu, Haiping Shen, Fen Huang, Zhaoyun Leng, Xinyang Zhou, Junfeng Wu, Jiefeng Wan
  • PARTIAL DISCHARGE (PD) DETECTION APPARATUS FOR GAS-INSULATED EQUIPMENT
    Publication number: 20220308105
    Abstract: A partial discharge (PD) detection apparatus for gas-insulated equipment includes a photon collector, an optical splitter, a first photoelectric conversion module, an ultraviolet fluorescent crystal, a second photoelectric conversion module, and a signal processing module, where the ultraviolet fluorescent crystal is configured to convert a second optical radiation signal into an optical radiation signal of an ultraviolet fluorescence band, and the signal processing module is configured to calculate first apparent intensity based on a first voltage signal output by the first photoelectric conversion module, calculate second apparent intensity based on a second voltage signal output by the second photoelectric conversion module, and determine discharge intensity of the optical radiation based on a ratio of the second apparent intensity to the first apparent intensity. Technical solutions of the present disclosure are not affected by an unknown distance between a discharge position and a detection point.
    Type: Application
    Filed: July 7, 2021
    Publication date: September 29, 2022
    Inventors: Jin Miao, Ping Chen, Yin Gu, Bin Fei, Xi Wu, Haiping Shen, Fen Huang, Zhaoyun Leng, Xinyang Zhou, Junfeng Wu, Jiefeng Wan