Patents by Inventor Siye RUAN

Siye RUAN 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).

  • Direct-current transmission line protection method and system based on pure current characteristics
    Patent number: 11973340
    Abstract: A line current iM(k0) of an M side of a first direct-current transmission line is collected at a moment k0. A line current iM(k0?ts) thereof is collected at k0?ts. At a moment k0, a differential value diM(k0) of a current of the side of the first direct-current transmission line is calculated according to the line current iM(k0) and the line current iM(k0?ts). It is determined whether the differential value diM(k0) of the current meets a protection enabling criteria. If so, direct-current protection for the M side of the first direct-current transmission line is enabled. A line current iM(j) of the M side of the first direct-current transmission line is collected at a moment j. A line current iM(j?ts) thereof is collected at a moment j?ts. A differential value diM(j) of the current of the M side of the first direct-current transmission line at the moment j is calculated according to the line current iM(j) and the line current iM(j?ts).
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: April 30, 2024
    Assignees: CHINA ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA
    Inventors: Zexin Zhou, Huanzhang Liu, Pengfei Lv, Hong Cao, Xingguo Wang, Siye Ruan, Dingxiang Du, Yong Li, Guosheng Yang, Mingliang Jin
  • DIRECT-CURRENT TRANSMISSION LINE PROTECTION METHOD AND SYSTEM BASED ON PURE CURRENT CHARACTERISTICS
    Publication number: 20220285931
    Abstract: Disclosed are a direct-current transmission line protection method and system based on pure current characteristics.
    Type: Application
    Filed: June 18, 2020
    Publication date: September 8, 2022
    Applicants: CHINA ELECTRIC POWER RESEARCH INSTITUTE, STATE GRID CORPORATION OF CHINA
    Inventors: Zexin ZHOU, Huanzhang LIU, Pengfei LV, Hong CAO, Xingguo WANG, Siye RUAN, Dingxiang DU, Yong LI, Guosheng YANG, Mingliang JIN