Patents by Inventor Guoju Zhang

Guoju 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).

  • Patent number: 11231845
    Abstract: A display adaptation method for an application executed by a terminal includes: displaying a setting interface for setting at least one zone boundary of an interface safe operation zone, the interface safe operation zone being a zone used for displaying a human-computer interaction control responsive to one or more gesture operations in the application; receiving a boundary setting operation triggered on the setting interface; determining positional parameters of zone boundaries of the interface safe operation zone according to the boundary setting operation; and generating, according to the positional parameters, the interface safe operation zone adapted to the terminal.
    Type: Grant
    Filed: September 9, 2020
    Date of Patent: January 25, 2022
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Junxiang Wang, Guoju Zhang, Yizhong Hu
  • Publication number: 20200409545
    Abstract: A display adaptation method for an application executed by a terminal includes: displaying a setting interface for setting at least one zone boundary of an interface safe operation zone, the interface safe operation zone being a zone used for displaying a human-computer interaction control responsive to one or more gesture operations in the application; receiving a boundary setting operation triggered on the setting interface; determining positional parameters of zone boundaries of the interface safe operation zone according to the boundary setting operation; and generating, according to the positional parameters, the interface safe operation zone adapted to the terminal.
    Type: Application
    Filed: September 9, 2020
    Publication date: December 31, 2020
    Inventors: Junxiang WANG, Guoju ZHANG, Yizhong HU
  • Patent number: 10693293
    Abstract: Methods and apparatus for protecting a direct-current (DC) electric power distribution system that includes one or more AC/DC converters and/or one more DC/DC converters, and one or more loads, connected by DC buses. An example method, which is carried out in response to the detection of a fault somewhere in the system, begins with limiting an output current of each of one or more of the converters so that each of the limited converters outputs a limited DC current at or about a corresponding predetermined current level. After the current limiting of the one or more converters has taken place, one or more protection devices in the system are activated, where the activating at least partly depends on the limited DC currents being at or about the predetermined fault current levels.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: June 23, 2020
    Assignee: ABB Schweiz AG
    Inventors: Li Qi, Jiuping Pan, Yao Chen, Guoju Zhang
  • Patent number: 9893524
    Abstract: The present invention provides coordinated control methods of generator and SVC for improving power plant active power throughput and controller thereof. The method comprises: measuring the required input parameters for the generator and SVC control; judging the system topology and the control mode of SVC to determine the operation mode; and calculating the control reference based on the operation mode to control the generator and/or SVC. The proposed methods and coordinated controllers enable the SVC to share the required reactive power output of the power plant, convert the generator into “unity-power-factor-generator”, and therefore extend the active power output capability of the power plant.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: February 13, 2018
    Assignee: ABB Schweiz AG
    Inventors: Yao Chen, Guoju Zhang, Charles Sao
  • Publication number: 20170054291
    Abstract: Methods and apparatus for protecting a direct-current (DC) electric power distribution system that includes one or more AC/DC converters and/or one more DC/DC converters, and one or more loads, connected by DC buses. An example method, which is carried out in response to the detection of a fault somewhere in the system, begins with limiting an output current of each of one or more of the converters so that each of the limited converters outputs a limited DC current at or about a corresponding predetermined current level. After the current limiting of the one or more converters has taken place, one or more protection devices in the system are activated, where the activating at least partly depends on the limited DC currents being at or about the predetermined fault current levels.
    Type: Application
    Filed: November 4, 2016
    Publication date: February 23, 2017
    Inventors: LI QI, Jiuping Pan, Yao Chen, Guoju Zhang
  • Patent number: 9502899
    Abstract: Method and apparatus for controlling at least one generator and a Static Var Compensator (SVC) to improve dynamic performance of the power plant are provided. The method comprises: obtaining the required input parameters for control of said generators and SVC; determining a control mode of the generators and the SVC; calculating the control references based on the input parameters and the control mode of the generators and the SVC; and controlling the generators and/or the SVC according to the control references. The invention also relates to a corresponding apparatus which can implement the method of the invention.
    Type: Grant
    Filed: April 28, 2013
    Date of Patent: November 22, 2016
    Assignee: ABB SCHWEIZ AG
    Inventors: Yao Chen, Guoju Zhang, Charles Sao
  • Publication number: 20160006379
    Abstract: The present invention discloses a hybrid electrification system of pump station and optimal operation method thereof. Said hybrid electrification system of pump station, comprises a central controller. It further comprises a shared Variable Frequency Drive (VFD) busbar and a common busbar, both of which being connected to said central controller. Said shared VFD busbar is shared by two or more said motor-pump chains and selectively drives one, two or more said motor-pump chains. Compared with the existing prior arts, the proposed solutions are much more intuitive and practical in the field of the pump station.
    Type: Application
    Filed: September 17, 2013
    Publication date: January 7, 2016
    Inventors: ZHAO WANG, YAO CHEN, GUOJU ZHANG
  • Publication number: 20150162749
    Abstract: Method and apparatus for controlling at least one generator and a Static Var Compensator (SVC) to improve dynamic performance of the power plant are provided. The method comprises: obtaining the required input parameters for control of said generators and SVC; determining a control mode of the generators and the SVC; calculating the control references based on the input parameters and the control mode of the generators and the SVC; and controlling the generators and/or the SVC according to the control references. The invention also relates to a corresponding apparatus which can implement the method of the invention.
    Type: Application
    Filed: April 28, 2013
    Publication date: June 11, 2015
    Applicant: ABB TECHNOLOGY LTD.
    Inventors: Yao Chen, Guoju Zhang, Charles Sao
  • Publication number: 20140379152
    Abstract: The present invention provides coordinated control methods of generator and SVC for improving power plant active power throughput and controller thereof. The method comprises: measuring the required input parameters for the generator and SVC control; judging the system topology and the control mode of SVC to determine the operation mode; and calculating the control reference based on the operation mode to control the generator and/or SVC. The proposed methods and coordinated controllers enable the SVC to share the required reactive power output of the power plant, convert the generator into “unity-power-factor-generator”, and therefore extend the active power output capability of the power plant.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 25, 2014
    Inventors: Yao Chen, Guoju Zhang, Charles Sao
  • Publication number: 20140240880
    Abstract: The present invention discloses a coordinated control method for power distribution system with DC bus electrification scheme and apparatus thereof. The method comprises: detecting what kind of disturbances occurs, and at least one of following steps: restoring the voltages of the failed DC buses if power loss is detected on the DC buses due to temporary or permanent failures of upstream power supplies; controlling the voltage of the abnormal DC buses if overvoltage or under-voltage is detected on the DC buses due to internal or external disturbances; and supporting the voltages of the abnormal AC buses if overvoltage or under-voltage is detected on the AC buses due to internal or external disturbances. The methods and apparatus can further improve the fault-ride-through capability for power plant under external or internal disturbances, and facilitate smooth automatic switching process between two DC buses etc.
    Type: Application
    Filed: April 16, 2012
    Publication date: August 28, 2014
    Inventors: Yao Chen, Guoju Zhang, Jiuping Pan, Lars Gertmar, Rongrong Yu, Erich Suter