Patents by Inventor Yuke Ji

Yuke Ji 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).

  • Parameter design method for series passive impedance adapter applicable to voltage source converter based high voltage direct current (VSC-HVDC) transmission system
    Patent number: 12132315
    Abstract: The present disclosure provides a parameter design method for a series passive impedance adapter applicable to a VSC-HVDC transmission system, to resolve the technical problem that high-frequency resonance may occur when impedance of a VSC-HVDC transmission system is mismatched with that of a sending-end or receiving-end grid. A parameter design goal of the present disclosure is that reactive power consumed by a series passive impedance adapter is not more than A times rated power of a converter, and a loss of the series passive impedance adapter in a fundamental wave is B times the rated power of the converter. The parameter design method for a series passive impedance adapter applicable to a VSC-HVDC transmission system in the present disclosure can realize a positive impedance characteristic within a concerned frequency band and completely eliminate a risk of harmonic resonance.
    Type: Grant
    Filed: June 6, 2021
    Date of Patent: October 29, 2024
    Assignees: ELECTRIC POWER RESEARCH INSTITUTE. CHINA SOUTHERN POWER GRID, CHINA SOUTHERN POWER GRID
    Inventors: Hong Rao, Changyue Zou, Shukai Xu, Yan Li, Xiaobin Zhao, Weiwei Li, Junjie Feng, Shuangfei Yang, Ting Hou, Lingfei Li, Yuke Ji
  • PARAMETER DESIGN METHOD FOR SERIES PASSIVE IMPEDANCE ADAPTER APPLICABLE TO VOLTAGE SOURCE CONVERTER BASED HIGH VOLTAGE DIRECT CURRENT (VSC-HVDC) TRANSMISSION SYSTEM
    Publication number: 20240204528
    Abstract: The present disclosure provides a parameter design method for a series passive impedance adapter applicable to a VSC-HVDC transmission system, to resolve the technical problem that high-frequency resonance may occur when impedance of a VSC-HVDC transmission system is mismatched with that of a sending-end or receiving-end grid. A parameter design goal of the present disclosure is that reactive power consumed by a series passive impedance adapter is not more than A times rated power of a converter, and a loss of the series passive impedance adapter in a fundamental wave is B times the rated power of the converter. The parameter design method for a series passive impedance adapter applicable to a VSC-HVDC transmission system in the present disclosure can realize a positive impedance characteristic within a concerned frequency band and completely eliminate a risk of harmonic resonance.
    Type: Application
    Filed: June 6, 2021
    Publication date: June 20, 2024
    Inventors: Hong Rao, Changyue Zou, Shukai Xu, Yan Li, Xiaobin Zhao, Weiwei Li, Junjie Feng, Shuangfei Yang, Ting Hou, Lingfei Li, Yuke Ji