Patents by Inventor Jianbin Liang

Jianbin Liang 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: 12355384
    Abstract: The current profile of excitation current provided to the electrical coils of a switched reluctance machine is controlled to reduce acoustic noise. A plurality of potential current waveforms can be evaluated to select a desired waveform that reduces the acoustic noise level of the switched reluctance machine. A cumulative sound pressure level of the switched reluctance machine can be determined for each potential current waveform. The cumulative sound pressure level can be determined based on a plurality of harmonic sound pressure levels expected to result from the potential current waveform. A desired current waveform can be identified as the potential current waveform associated with an optimal cumulative sound pressure level. The desired current waveform can then be applied to the corresponding phase coil of the switched reluctance machine in order to operate the switched reluctance machine while reducing acoustic noise without sacrificing other motor performance metrics.
    Type: Grant
    Filed: March 2, 2023
    Date of Patent: July 8, 2025
    Assignee: Enedym Inc
    Inventors: Jianbin Liang, Berker Bilgin
  • Patent number: 12270378
    Abstract: A system for controlling pitch angle of a blade of a wind turbine is provided. The system may comprise a switched reluctance motor and an inverter. The motor may be configured to be positioned at a hub of the wind turbine and coupled to the blade. The motor may have a stator and a rotor. The stator may have: (i) multiple stator poles and (ii) coil windings around each of the multiple stator poles. The rotor may be rotatably mounted with respect to the stator. The rotor may have multiple rotor poles and a rotor shaft configured to be coupled to the blade to control the pitch angle of the blade. The inverter may be configured to supply electrical power to the coil windings to control motion of the rotor shaft in response to receiving a pitch angle control signal from a pitch angle control system of the wind turbine.
    Type: Grant
    Filed: December 18, 2023
    Date of Patent: April 8, 2025
    Assignee: ENEDYM INC.
    Inventors: Jianbin Liang, Lea Pommier, Brock Howey, Berker Bilgin
  • Publication number: 20250096716
    Abstract: The current profile of excitation current provided to the electrical coils of a switched reluctance machine is controlled to reduce acoustic noise. A plurality of potential current waveforms can be evaluated to select a desired waveform that reduces the acoustic noise level of the switched reluctance machine. A cumulative sound pressure level of the switched reluctance machine can be determined for each potential current waveform. The cumulative sound pressure level can be determined based on a plurality of harmonic sound pressure levels expected to result from the potential current waveform. A desired current waveform can be identified as the potential current waveform associated with an optimal cumulative sound pressure level. The desired current waveform can then be applied to the corresponding phase coil of the switched reluctance machine in order to operate the switched reluctance machine while reducing acoustic noise without sacrificing other motor performance metrics.
    Type: Application
    Filed: March 2, 2023
    Publication date: March 20, 2025
    Inventors: Jianbin Liang, Berker Bilgin
  • Publication number: 20240218855
    Abstract: A system for controlling pitch angle of a blade of a wind turbine is provided. The system may comprise a switched reluctance motor and an inverter. The motor may be configured to be positioned at a hub of the wind turbine and coupled to the blade. The motor may have a stator and a rotor. The stator may have: (i) multiple stator poles and (ii) coil windings around each of the multiple stator poles. The rotor may be rotatably mounted with respect to the stator. The rotor may have multiple rotor poles and a rotor shaft configured to be coupled to the blade to control the pitch angle of the blade. The inverter may be configured to supply electrical power to the coil windings to control motion of the rotor shaft in response to receiving a pitch angle control signal from a pitch angle control system of the wind turbine.
    Type: Application
    Filed: December 18, 2023
    Publication date: July 4, 2024
    Inventors: Jianbin Liang, Lea Pommier, Brock Howey, Berker Bilgin
  • Publication number: 20230309602
    Abstract: Disclosed in the present disclosure is an intelligent cut tobacco drying control system and method based on volatile moisture content, wherein the system comprises a heat and mass transfer process analysis module, a material and energy accounting module, a prediction model module, a model control module and an abnormality early warning module. The present disclosure analyzes a drying process of the thin sheet shredded tobacco leaf drying machine, can provide theoretical support for building the intelligent control system under changeable conditions and realize intelligent production of drying shredded tobacco leaves. The present disclosure aims to transform the existing control mode and accurately predict the drainage opening by using a fitting model between the volatile moisture content and the drainage opening, so as to realize transformation from artificial control to intelligent control.
    Type: Application
    Filed: March 31, 2023
    Publication date: October 5, 2023
    Inventors: Zijuan Li, Zixian Feng, Shuo Sun, Jiaojiao Chen, Yang Gao, Ting Fang, Wangchang Miao, Jichao Guo, Liyuan Zhao, Xiaohui Jia, Xiaohua Yang, Dongsheng Du, Yanshu Ma, Wenhui Chang, Jianbin Liang, Wei Wei, Cunrui Pang, Yanling Ma