Patents by Inventor Yufei RAO

Yufei RAO 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).

  • Energy storage transient power coordinated control method for restraining subsequent commutation failures
    Patent number: 11888315
    Abstract: The invention discloses an energy storage transient power coordinated control method for restraining subsequent commutation failures, which includes: detecting DC current, AC bus voltage and arc quenching angle on the inverter side; Controlling the energy storage power station to enter the transient control mode when the DC current is greater than the first current threshold or the AC bus voltage is less than the voltage threshold or the arc quenching angle is less than the first arc quenching angle threshold. By detecting the DC current and arc quenching angle on the inverter side, the active power output time instruction and reactive power output time instruction are determined respectively. The active power output amplitude instruction is determined by detecting the AC bus voltage, and the reactive power output amplitude instruction is determined by using the constraint of the total energy storage capacity.
    Type: Grant
    Filed: July 30, 2021
    Date of Patent: January 30, 2024
    Assignees: STATE GRID HENAN ELECTRIC POWER RESEARCH INSTITUTE, HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chenghao Li, Wei Yao, Mingyang Liu, Hongyu Zhou, Wei Cui, Jingyu Wen, Ning Zhou, Yufei Rao, Ze Gao, Han Xiao
  • ENERGY STORAGE TRANSIENT POWER COORDINATED CONTROL METHOD FOR RESTRAINING SUBSEQUENT COMMUTATION FAILURES
    Publication number: 20230135970
    Abstract: The invention discloses an energy storage transient power coordinated control method for restraining subsequent commutation failures, which includes: detecting DC current, AC bus voltage and arc quenching angle on the inverter side; Controlling the energy storage power station to enter the transient control mode when the DC current is greater than the first current threshold or the AC bus voltage is less than the voltage threshold or the arc quenching angle is less than the first arc quenching angle threshold. By detecting the DC current and arc quenching angle on the inverter side, the active power output time instruction and reactive power output time instruction are determined respectively. The active power output amplitude instruction is determined by detecting the AC bus voltage, and the reactive power output amplitude instruction is determined by using the constraint of the total energy storage capacity.
    Type: Application
    Filed: July 30, 2021
    Publication date: May 4, 2023
    Applicants: STATE GRID HENAN ELECTRIC POWER RESEARCH INSTITUTE, HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY
    Inventors: Chenghao LI, Wei YAO, Mingyang LIU, Hongyu ZHOU, Wei CUI, Jingyu WEN, Ning ZHOU, Yufei RAO, Ze GAO, Han XIAO