Patents by Inventor Xinyan Jiao

Xinyan Jiao 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).

  • Tripolar VSC-HVDC transmission system and method
    Patent number: 9948104
    Abstract: A tripolar VSC-HVDC system and method include a rectifier and an inverter formed by a three-phase six-bridge arms modular multilevel converter (MMC) respectively, and two converter valves are arranged on the DC side of the rectifier and inverter respectively. The midpoint of upper and lower converter valves of the rectifier and inverter are connected with a pole 3 DC line by a smoothing reactor. Triggering of the upper and lower converter valves is controlled to change the DC voltage polarity of the pole 3 periodically, and tripolar DC transmission is realized by modulating current orders of the three poles.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: April 17, 2018
    Assignees: NR Electric Co., Ltd., NR Electric Engineering Co., Ltd.
    Inventors: Ming Hu, Zhenxia Shao, Xinyan Jiao, Jie Tian, Yu Lu, Gang Shen
  • TRIPOLAR VSC-HVDC TRANSMISSION SYSTEM AND METHOD
    Publication number: 20160336751
    Abstract: A tripolar VSC-HVDC system and method, include a rectifier and an inverter formed by a three-phase six-bridge arms modular multilevel converter (MMC) respectively, and two converter valves are arranged on the DC side of the rectifier and inverter respectively. The midpoint of upper and lower converter valves of the rectifier and inverter are connected with a pole 3 DC line by a smoothing reactor. Triggering of the upper and lower converter valves is controlled to change the DC voltage polarity of the pole 3 periodically, and tripolar DC transmission is realized by modulating current orders of the three poles.
    Type: Application
    Filed: January 22, 2015
    Publication date: November 17, 2016
    Inventors: Ming Hu, Zhenxia Shao, Xinyan Jiao, Jie Tian, Yu Lu, Gang Shen