Patents by Inventor YONGWANG ZHANG

YONGWANG ZHANG 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).

  • VIRTUAL PAYMENT METHOD AND SYSTEM
    Publication number: 20220374889
    Abstract: A virtual payment method and system. A first virtual account is associated with a physical account, and a second virtual account is associated with the physical account. That is, virtual accounts of different accounts are all associated with the physical account. During the payment for flight ticket booking information by means of virtual payment, it is an exchange of a virtual currency between different virtual accounts associated with the same physical account. During the process, balances in virtual accounts that exchange virtual currencies with each other change, but the total amount in the physical account associated with a plurality of different virtual accounts remains unchanged, that is, the actual currency amount in the physical account does not change. The present invention would not he restricted by an implementation measure of the Central Bank.
    Type: Application
    Filed: November 3, 2020
    Publication date: November 24, 2022
    Applicant: TravelSky Technology Limited
    Inventors: Zhidan Zhang, Sujuan Zhang, Ying Xin, Yanna Li, Xue Li, Xiaoliang Wang, Xiaofeng Fei, Yongwang Zhang, Zhonglin Jiang, Xinhui Song
  • Method and device for controlling local voltage
    Patent number: 10218176
    Abstract: A method and a device for controlling a local voltage are provided. The method includes: obtaining a first voltage value of a high-voltage side bus in a local transformer substation; determining a control strategy according to a starting threshold value for a voltage enhancement control, a starting threshold value for an under-voltage load shedding and the first voltage value of the high-voltage side bus; and performing the control strategy to control a charging power of an electric vehicle charging station corresponding to the local transformer substation, so as to control the local voltage of the local transformer substation.
    Type: Grant
    Filed: January 28, 2016
    Date of Patent: February 26, 2019
    Assignees: TSINGHUA UNIVERSITY, ELECTRIC POWER RESEARCH INSTITUTE OF GUANGDONG POWER GRID CO., LTD.
    Inventors: Qinglai Guo, Hongbin Sun, Boming Zhang, Wenchuan Wu, Huaichang Ge, Mingye Zhang, Yongwang Zhang, Wei Zhao, Guoying Lin
  • METHOD AND DEVICE FOR CONTROLLING LOCAL VOLTAGE
    Publication number: 20160233685
    Abstract: A method and a device for controlling a local voltage are provided. The method includes: obtaining a first voltage value of a high-voltage side bus in a local transformer substation; determining a control strategy according to a starting threshold value for a voltage enhancement control, a starting threshold value for an under-voltage load shedding and the first voltage value of the high-voltage side bus; and performing the control strategy to control a charging power of an electric vehicle charging station corresponding to the local transformer substation, so as to control the local voltage of the local transformer substation.
    Type: Application
    Filed: January 28, 2016
    Publication date: August 11, 2016
    Inventors: QINGLAI GUO, HONGBIN SUN, BOMING ZHANG, WENCHUAN WU, HUAICHANG GE, MINGYE ZHANG, YONGWANG ZHANG, WEI ZHAO, GUOYING LIN