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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：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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公开(公告)号：US20190219032A1
公开(公告)日：2019-07-18
申请号：US15874124
申请日：2018-01-18
Applicant: General Electric Company
Inventor： Lijun He , Liwei Hao , John Mihok
CPC classification number: F03D17/00 , F03D7/0224 , F03D80/50 , F03D80/70 , F05B2260/79 , F05B2260/80 , G01M13/04
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：US10273940B2
公开(公告)日：2019-04-30
申请号：US15152664
申请日：2016-05-12
Applicant: General Electric Company
Inventor： Di Pan , Liwei Hao , Lijun He , Stefan Grubic
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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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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Patent Agency Ranking
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：US11081917B2
公开(公告)日：2021-08-03
申请号：US16203621
申请日：2018-11-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： David Allan Torrey , Mohamed Osama , Joseph John Zierer , Lijun He , Andrew Thomas Cross
Abstract: An electric machine includes at least one rotor module. A rotor module includes a rotor hub having a hub body, and a plurality of first protrusions and a plurality of second protrusions. One or more first protrusions include an elongated portion and a head portion. One or more second protrusions include a wedge-shaped profile. The rotor module further includes a magnetic core having a plurality of core members disposed on the rotor hub. A core member of the plurality of core members is disposed such that the head portion of the first protrusion located between the adjacent second protrusions engages with the core member, and each of the one or more second protrusions extends at least partially in a space between adjacent core members of the plurality of core members. Moreover, the rotor module includes a permanent magnet disposed in a space between the adjacent core members.
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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：US20200177039A1
公开(公告)日：2020-06-04
申请号：US16203621
申请日：2018-11-29
Applicant: GENERAL ELECTRIC COMPANY
Inventor： David Allan Torrey , Mohamed Osama , Joseph John Zierer , Lijun He , Andrew Thomas Cross
Abstract: An electric machine includes at least one rotor module. A rotor module includes a rotor hub having a hub body, and a plurality of first protrusions and a plurality of second protrusions. One or more first protrusions include an elongated portion and a head portion. One or more second protrusions include a wedge-shaped profile. The rotor module further includes a magnetic core having a plurality of core members disposed on the rotor hub. A core member of the plurality of core members is disposed such that the head portion of the first protrusion located between the adjacent second protrusions engages with the core member, and each of the one or more second protrusions extends at least partially in a space between adjacent core members of the plurality of core members. Moreover, the rotor module includes a permanent magnet disposed in a space between the adjacent core members.
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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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