Patents by Inventor Xiaohe ZHANG

Xiaohe 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).

  • Wind turbine generator including at least two power transmission systems connected in parallel with each other and control method therefor
    Patent number: 10826349
    Abstract: The disclosure provides a wind turbine generator and a control method thereof. The wind turbine generator comprises at least two power transmission systems connected each other in parallel and a control system comprising an upper controller and control subsystems corresponding to the power transmission systems and comprising bottom controllers. The bottom controllers monitor operating state parameters of functional units in corresponding power transmission systems, and when determining corresponding functional units meet abnormal conditions according to operating state parameters, send operating state parameters of corresponding functional units to the upper controller; the upper controller generates operating instructions when determining faults of the corresponding functional units occur according to operating state parameters of corresponding functional units, to control power transmission systems to work according to operation instructions.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: November 3, 2020
    Assignee: Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.
    Inventors: Haifei Zhu, Pei Niu, Gang Deng, Xiaohe Zhang
  • Wind power generator vibration inhibition method and device
    Patent number: 10340831
    Abstract: A vibration suppression method and device of a wind power generator is provided. The method includes: calculating a specified value of a flux-weakening control parameter of the generator according to a preset value of an electromagnetic active power of the generator and a frequency of the generator; and controlling the generator according to the specified value of the flux-weakening control parameter of the generator. The method and device reduce the magnetic load of the generator by the flux-weakening control, thereby suppress vibration and noise of the generator.
    Type: Grant
    Filed: November 25, 2015
    Date of Patent: July 2, 2019
    Assignee: Beijing Goldwind Science & Creation Windpower Equipment Co., Ltd.
    Inventors: Yong Liu, Xiaohe Zhang, Xiang Zhao
  • WIND TURBINE AND CONTROL METHOD THEREFOR
    Publication number: 20190006912
    Abstract: The disclosure provides a wind turbine generator and a control method thereof. The wind turbine generator comprises at least two power transmission systems connected each other in parallel and a control system comprising an upper controller and control subsystems corresponding to the power transmission systems and comprising bottom controllers. The bottom controllers monitor operating state parameters of functional units in corresponding power transmission systems, and when determining corresponding functional units meet abnormal conditions according to operating state parameters, send operating state parameters of corresponding functional units to the upper controller; the upper controller generates operating instructions when determining faults of the corresponding functional units occur according to operating state parameters of corresponding functional units, to control power transmission systems to work according to operation instructions.
    Type: Application
    Filed: August 2, 2017
    Publication date: January 3, 2019
    Applicant: BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.
    Inventors: Haifei ZHU, Pei NIU, Gang DENG, Xiaohe ZHANG
  • WIND POWER GENERATOR VIBRATION INHIBITION METHOD AND DEVICE
    Publication number: 20180175764
    Abstract: A vibration suppression method and device of a wind power generator is provided. The method includes: calculating a specified value of a flux-weakening control parameter of the generator according to a preset value of an electromagnetic active power of the generator and a frequency of the generator; and controlling the generator according to the specified value of the flux-weakening control parameter of the generator. The method and device reduce the magnetic load of the generator by the flux-weakening control, thereby suppress vibration and noise of the generator.
    Type: Application
    Filed: November 25, 2015
    Publication date: June 21, 2018
    Applicant: BEIJING GOLDWIND SCIENCE & CREATION WINDPOWER EQUIPMENT CO., LTD.
    Inventors: Yong LIU, Xiaohe ZHANG, Xiang ZHAO