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公开(公告)号：US20210131400A1
公开(公告)日：2021-05-06
申请号：US16676192
申请日：2019-11-06
Applicant: General Electric Company
Inventor： Lijun He , Honggang Wang , Alexandre Lagarde , Virginie Peron , Raphael de Rocca-Serra , Arvind Kumar Tiwari , Liwei Hao
Abstract: A method of operating a wind converter is provided. The method includes receiving a plurality of forecasted datasets. The forecasted datasets include event signals for the wind converter during fast transient operating conditions (OCs) and operational data for the wind converter having a low sampling rate. The method further includes estimating a converter life consumption during normal OCs and a converter life consumption during the fast transient OCs. Further, the method includes computing a total converter life consumption of the wind converter. Moreover, the method includes predicting, using a remaining useful life (RUL) prediction module, an RUL for the wind converter based on the total converter life consumption. The method further includes adjusting operation of the wind converter by adjusting operating variables of the wind converter.
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公开(公告)号：US10161988B2
公开(公告)日：2018-12-25
申请号：US15309529
申请日：2015-05-14
Applicant: General Electric Company
Inventor： Prabhakar Neti , Yingneng Zhou , Liwei Hao
IPC: G01R31/02 , G01R31/12 , E21B43/12 , E21B47/00 , E21B17/00 , E21B41/00 , H01B9/02 , H02G9/02 , E21B47/12 , F04D13/06 , F04D13/08
Abstract: A system (100, 200) is presented. The system includes a fluid lifting device (102, 202) located inside a well (106, 206), and comprising an electrical motor (108, 208), a three phase cable (114, 214) for coupling the fluid lifting device to a power source (112, 212), at least one high sensitivity differential current transformer (104, 203, 204) for generating imbalance signals (128, 227) representative of an imbalance current in at least one of the electrical motor and the three phase cable, wherein the at least one high sensitivity differential current transformer is disposed such that the at least one high sensitivity differential current transformer surrounds at least a portion of the three phase cable, and a processing subsystem (136, 236) for monitoring the health of at least one of the fluid lifting device and the three phase cable based on the imbalance signals.
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公开(公告)号：US11473564B2
公开(公告)日：2022-10-18
申请号：US15874124
申请日：2018-01-18
Applicant: General Electric Company
Inventor： Lijun He , Liwei Hao , John Mihok
Abstract: A system and method for monitoring a pitch system of a wind turbine includes monitoring, via one or more first sensors, at least one electrical condition of the pitch system. The method also includes monitoring, via one or more second sensors, at least one mechanical condition of the pitch system. Further, the method includes receiving, via a controller communicatively coupled to the one or more first and second sensors, sensor signals representing the at least one electrical condition and the at least one mechanical condition of the pitch system. Thus, the method includes determining, via the controller, a bearing condition of a pitch bearing of the pitch system based on the at least one electrical condition and the at least one mechanical condition of the pitch system.
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公开(公告)号：US20180348303A1
公开(公告)日：2018-12-06
申请号：US15610992
申请日：2017-06-01
Applicant: General Electric Company
Inventor： Jayakrishnan Unnikrishnan , Lijun He , Brett Alexander Matthews , Liwei Hao
Abstract: Systems and methods for detecting faults are provided. A method for determining a fault condition for a component of a drivetrain in a wind turbine can include receiving an acoustic signal from an acoustic signal measuring device. The method can further include receiving a vibration signal from a vibration signal measuring device. The method can further include analyzing the acoustic signal to determine an analyzed acoustic signal. The method can further include analyzing the vibration signal to determine an analyzed vibration signal. The method can further include determining a fault condition for the component based at least in part on the analyzed acoustic signal and analyzed vibration signal. The fault condition can further be determined based at least in part on an analyzed electrical signal.
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公开(公告)号：US20170328349A1
公开(公告)日：2017-11-16
申请号：US15152664
申请日：2016-05-12
Applicant: General Electric Company
Inventor： Di Pan , Liwei Hao , Lijun He , Stefan Grubic
CPC classification number: F03D17/00 , F03D7/0224 , F03D80/70 , F05B2260/80 , Y02E10/721 , Y02E10/723
Abstract: The present disclosure is directed to a system and method for detecting damage of a pitch bearing of a wind turbine. The pitch bearing is part of a pitch drive system having a plurality of pitch drive motors. The method includes measuring at least one electrical signal of the pitch drive system. The method also includes processing the electrical signal(s) of the pitch drive system and comparing the electrical signals of the pitch drive system with a baseline threshold. Thus, the method also includes determining whether damage is present in the pitch bearing based, at least in part, on the comparison, wherein the electrical signal(s) exceeding the baseline threshold is indicative of damage in the pitch bearing.
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Patent Agency Ranking
公开(公告)号：US12241452B2
公开(公告)日：2025-03-04
申请号：US17783356
申请日：2019-12-17
Applicant: General Electric Company
Inventor： Lijun He , Mohammad Attia , Biao Fang , Liwei Hao , Karim Younsi , Honggang Wang
Abstract: A method for monitoring at least one rotor blade of a wind turbine includes implementing, via a controller, a control scheme for monitoring blade damage of the at least one rotor blade. The control scheme includes monitoring at least one electrical condition of a pitch system of the wind turbine. The method also includes converting the electrical condition(s) of the pitch system into a frequency domain. Further, the method includes determining one or more peaks of the frequency domain around a frequency component related to a natural frequency of the rotor blade. Moreover, the method includes determining a frequency deviation between the one or more peaks of the frequency domain and the frequency component related to the natural frequency of the rotor blade. As such, a frequency deviation outside of a predetermined frequency range is indicative of a rotor blade anomaly. Thus, the method includes implementing a control action when the frequency deviation is outside of the predetermined frequency range.
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公开(公告)号：US20230011028A1
公开(公告)日：2023-01-12
申请号：US17783356
申请日：2019-12-17
Applicant: General Electric Company
Inventor： Lijun He , Mohammad Attia , Biao Fang , Liwei Hao , Karim Younsi , Honggang Wang
Abstract: A method for monitoring at least one rotor blade of a wind turbine includes implementing, via a controller, a control scheme for monitoring blade damage of the at least one rotor blade. The control scheme includes monitoring at least one electrical condition of a pitch system of the wind turbine. The method also includes converting the electrical condition(s) of the pitch system into a frequency domain. Further, the method includes determining one or more peaks of the frequency domain around a frequency component related to a natural frequency of the rotor blade. Moreover, the method includes determining a frequency deviation between the one or more peaks of the frequency domain and the frequency component related to the natural frequency of the rotor blade. As such, a frequency deviation outside of a predetermined frequency range is indicative of a rotor blade anomaly. Thus, the method includes implementing a control action when the frequency deviation is outside of the predetermined frequency range.
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公开(公告)号：US20200293032A1
公开(公告)日：2020-09-17
申请号：US16562570
申请日：2019-09-06
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Honggang Wang , Weizhong Yan , Lijun He , Liwei Hao
Abstract: embodiments are directed to a system, method, and article for monitoring a power substation asset. During an offline analysis mode, training data may be acquired and processing, and one or more classifiers may be generated for an online anomaly detection and localization mode. During the online anomaly detection and localization mode, power system related data may be received from field devices, a state of a substation system and of the power substation asset component and an unclassified state of one or instances may be generated based on the one or more classifiers. An alert may be generated to indicate the state of the substation system and of the power substation asset.
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公开(公告)号：US20180115011A1
公开(公告)日：2018-04-26
申请号：US15331421
申请日：2016-10-21
Applicant: General Electric Company
Inventor： Keith Garrette Brown , Liwei Hao , Darren Bawden Hickey , Kevin Joseph Gavel , John Raymond Krahn , Qin Chen , Lili Zhang , Daniel Qi Tan
IPC: H01M8/2485 , H01M8/0662
CPC classification number: H01M8/2485 , F16L25/0072 , F16L25/026 , F16L55/24 , H01M8/0662 , H01M2008/1293 , H01M2250/10 , Y02B90/14 , Y02E60/525
Abstract: A flange assembly for use with a SOFC system includes a first flange, a second flange, and a dielectric element coupled between the first flange and the second flange. The dielectric element includes an outer cylindrical surface and an inner cylindrical surface. The inner cylindrical surface defines a cylindrical region having a circumference. The inner cylindrical surface also defines a channel that extends radially about the circumference of the cylindrical region.
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公开(公告)号：US12074530B2
公开(公告)日：2024-08-27
申请号：US16676192
申请日：2019-11-06
Applicant: General Electric Company
Inventor： Lijun He , Honggang Wang , Alexandre Lagarde , Virginie Peron , Raphael de Rocca-Serra , Arvind Kumar Tiwari , Liwei Hao
CPC classification number: H02M5/458 , F03D9/255 , G01R31/2617 , G01R31/2642 , G05B13/04 , G05B23/0283 , H02J3/381 , H02J2300/28
Abstract: A method of operating a wind converter is provided. The method includes receiving a plurality of forecasted datasets. The forecasted datasets include event signals for the wind converter during fast transient operating conditions (OCs) and operational data for the wind converter having a low sampling rate. The method further includes estimating a converter life consumption during normal OCs and a converter life consumption during the fast transient OCs. Further, the method includes computing a total converter life consumption of the wind converter. Moreover, the method includes predicting, using a remaining useful life (RUL) prediction module, an RUL for the wind converter based on the total converter life consumption. The method further includes adjusting operation of the wind converter by adjusting operating variables of the wind converter.
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