Patents by Inventor Lihan HE

Lihan HE 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: 11125433
    Abstract: A method for combustion tuning, comprises collecting exhaust parameters indicating combustion status of a boiler by a sensor array; determining whether the exhaust parameters of the boiler match a preset optimization target; and optimizing combustion, if the exhaust parameters do not match the preset optimization target by selecting a model from a model repository based on a current boiler condition, wherein the model corresponds to a relationship between model input variables and the exhaust parameters; determining at least one optimized model input variable of the boiler for realizing the optimization target, based on the selected model; and adjusting actuators of the boiler according to the optimized model input variable.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: September 21, 2021
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Honggang Wang, Lihan He, Zhilin Wu, Yao Chen, Wei Zhou, Guang Xu, David Kelly Moyeda
  • Patent number: 10018177
    Abstract: A wind turbine includes a rotor comprising multiple blades mounted on a hub, MIMUs mounted on each blade for sensing parameter signals thereof, and a control system. The control system includes a wind speed calculation unit, a wind shear calculation unit, a pitch angle compensation command calculation unit, and a pitch control unit. The wind speed calculation unit is used for calculating wind speeds at the blades based at least on the sensed parameter signals. The wind shear calculation unit is used for calculating a characteristic shear exponent based at least on the calculated wind speeds. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based at least on the calculated characteristic shear exponent. The pitch control unit is used for adjusting the pitch angles of the blades based on the calculated pitch angle compensation commands.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: July 10, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Xu Fu, Lihan He, Hai Qiu, Gerald Addison Curtin, Jr., Myungkeun Yoon
  • Patent number: 9587627
    Abstract: A wind turbine includes multiple blades, multiple Micro Inertial Measurement Units (MIMUs) for sensing parameter signals of the blades, and a control system. The control system includes a blade bending moment calculation unit, a blade bending moment error signal calculation unit, and a pitch angle compensation command calculation unit. The blade bending moment calculation unit is used for calculating blade bending moment values of the blades based at least on the sensed parameters. The blade bending moment error signal calculation unit is used for calculating blade bending moment error signals of the blades based on the calculated blade bending moment values of the blades and multiple blade bending moment commands. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based on the calculated blade bending moment error signals to adjust pitch angles of the blades respectively.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: March 7, 2017
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Xu Fu, Na Ni, Qiang Li, Zhilin Wu, Lihan He, Hai Qiu, Yong Yang, Gerald Addison Curtin, Jr., Myungkeun Yoon
  • Patent number: 9442152
    Abstract: A fault location system for a distribution network is disclosed. The fault location system includes at least one sensor and a fault location evaluation apparatus. The at least one sensor is located on the distribution network, for sensing current and dividing the distribution network into at least two regions. The fault location evaluation apparatus includes a fault region determination unit for determining which one of the at least two regions is a fault region where a fault occurs therein by calculating the sensed current from the at least one sensor.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: September 13, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Zhilin Wu, Ilia Voloh, Lihan He, Zhihan Xu
  • Publication number: 20160091203
    Abstract: A method for combustion tuning, comprises collecting exhaust parameters indicating combustion status of a boiler by a sensor array; determining whether the exhaust parameters of the boiler match a preset optimization target; and optimizing combustion, if the exhaust parameters do not match the preset optimization target by selecting a model from a model repository based on a current boiler condition, wherein the model corresponds to a relationship between model input variables and the exhaust parameters; determining at least one optimized model input variable of the boiler for realizing the optimization target, based on the selected model; and adjusting actuators of the boiler according to the optimized model input variable.
    Type: Application
    Filed: September 24, 2015
    Publication date: March 31, 2016
    Inventors: Honggang WANG, Lihan HE, Zhilin WU, Yao CHEN, Wei ZHOU, Guang XU, David Kelly MOYEDA
  • Publication number: 20150118047
    Abstract: A method for determining parameters of a wind turbine is disclosed. The method may generally include receiving signals from at least one Micro Inertial Measurement Unit (MIMU) mounted on or within a component of the wind turbine and determining at least one parameter of the wind turbine based on the signals received from the at least one MIMU.
    Type: Application
    Filed: January 27, 2012
    Publication date: April 30, 2015
    Inventors: Ken Yoon, Brandon Shane Gerber, Lisa Kamdar Ammann, Hai Qiu, Yong Yang, Zhilin Wu, Xu Fu, Lihan He, Na Ni, Qiang Li
  • Publication number: 20150086362
    Abstract: A wind turbine includes a rotor comprising multiple blades mounted on a hub, MIMUs mounted on each blade for sensing parameter signals thereof, and a control system. The control system includes a wind speed calculation unit, a wind shear calculation unit, a pitch angle compensation command calculation unit, and a pitch control unit. The wind speed calculation unit is used for calculating wind speeds at the blades based at least on the sensed parameter signals. The wind shear calculation unit is used for calculating a characteristic shear exponent based at least on the calculated wind speeds. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based at least on the calculated characteristic shear exponent. The pitch control unit is used for adjusting the pitch angles of the blades based on the calculated pitch angle compensation commands.
    Type: Application
    Filed: September 5, 2014
    Publication date: March 26, 2015
    Inventors: Xu FU, Lihan HE, Hai QIU, Gerald Addison CURTIN, JR., Myungkeun YOON
  • Publication number: 20150048841
    Abstract: A fault location system for a distribution network is disclosed. The fault location system includes at least one sensor and a fault location evaluation apparatus. The at least one sensor is located on the distribution network, for sensing current and dividing the distribution network into at least two regions. The fault location evaluation apparatus includes a fault region determination unit for determining which one of the at least two regions is a fault region where a fault occurs therein by calculating the sensed current from the at least one sensor.
    Type: Application
    Filed: August 13, 2014
    Publication date: February 19, 2015
    Inventors: Lihan He, Ilia Voloh, Zhilin Wu, Zhihan Xu
  • Publication number: 20140037448
    Abstract: A wind turbine includes multiple blades, multiple Micro Inertial Measurement Units (MIMUs) for sensing parameter signals of the blades, and a control system. The control system includes a blade bending moment calculation unit, a blade bending moment error signal calculation unit, and a pitch angle compensation command calculation unit. The blade bending moment calculation unit is used for calculating blade bending moment values of the blades based at least on the sensed parameters. The blade bending moment error signal calculation unit is used for calculating blade bending moment error signals of the blades based on the calculated blade bending moment values of the blades and multiple blade bending moment commands. The pitch angle compensation command calculation unit is used for calculating pitch angle compensation commands of the blades based on the calculated blade bending moment error signals to adjust pitch angles of the blades respectively.
    Type: Application
    Filed: July 1, 2013
    Publication date: February 6, 2014
    Inventors: Xu FU, NA NI, Qiang LI, Zhilin WU, Lihan HE, Hai QIU, Yong YANG, Gerald Addison CURTIN, JR., Myungkeun YOON