Patents by Inventor Qiuyu SHI

Qiuyu SHI 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).

  • Publication number: 20250175072
    Abstract: A driving circuit for a switching device is provided. The driving circuit comprises a pulse width modulation circuit and a waveform conversion circuit. An output terminal of the pulse width modulation circuit is connected to an input terminal of the waveform conversion circuit, and an output terminal of the waveform conversion circuit is connected to a control terminal of the switching device. The waveform conversion circuit comprises a resistor-capacitor series circuit, the pulse width modulation circuit is configured to output a level pulse signal for turning on the switching device, and the resistor-capacitor series circuit is configured to reduce an edge slope of the level pulse signal.
    Type: Application
    Filed: November 27, 2024
    Publication date: May 29, 2025
    Inventor: Qiuyue SHI
  • Publication number: 20240429705
    Abstract: A vertical thyristor switch for a controllable surge arrester includes an insulating sleeve and a vertical cylindrical switch core body encapsulated inside the insulating sleeve. The switch core body includes thyristor valve sections, a reactor, driving units, a voltage equalizing assembly section, a structural member and a connecting member; and after being connected to the driving units on one side of the thyristor valve sections, the thyristor valve sections are arranged, together with the voltage equalizing assembly section, in a space of a lower section of the structural member, an upper section of the structural member is provided with the reactor, and components inside the switch core body are electrically connected through the connecting member.
    Type: Application
    Filed: September 5, 2024
    Publication date: December 26, 2024
    Applicants: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE CO., LTD., STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER COMPANY, STATE GRID CORPORATION OF CHINA
    Inventors: Guoliang ZHAO, Weiguo LI, Qiuyu SHI, Xianshan GUO, Guangyao QIAO, Fangyi LI, Yunfei XU, Haijun LIU, Yanjiao JIN, Zhe CHENG
  • Patent number: 12165796
    Abstract: A power electronic transformer structure includes: a support, a high-frequency transformer, a base, high-voltage side modules, and a low-voltage side module. The high-voltage side modules are respectively located at the front, top, and back of the support; the low-voltage side module is located at the bottom of the support; the high-frequency transformer is located at the middle of the support.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: December 10, 2024
    Assignee: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE CO., LTD.
    Inventors: Zhanfeng Deng, Jun Ge, Guoliang Zhao, Zhenjiang Shi, Feng Wang, Qiuyu Shi, Wei Kang, Guangyao Qiao
  • Publication number: 20220093313
    Abstract: A power electronic transformer structure includes: a support, a high-frequency transformer, a base, high-voltage side modules, and a low-voltage side module. The high-voltage side modules are respectively located at the front, top, and back of the support; the low-voltage side module is located at the bottom of the support; the high-frequency transformer is located at the middle of the support.
    Type: Application
    Filed: February 1, 2019
    Publication date: March 24, 2022
    Applicant: GLOBAL ENERGY INTERCONNECTION RESEARCH INSTITUTE CO., LTD.
    Inventors: Zhanfeng DENG, Jun GE, Guoliang ZHAO, Zhenjiang SHI, Feng WANG, Qiuyu SHI, Wei KANG, Guangyao QIAO