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Patent Agency Ranking
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：US10254270B2
公开(公告)日：2019-04-09
申请号：US15418847
申请日：2017-01-30
Applicant: General Electric Company
Inventor： Radislav Alexandrovich Potyrailo , Michael Garry , John Mihok , Robert Mcleod
IPC: G01N27/02 , G01N33/28 , G01M13/021
Abstract: A system includes a resonant sensor in contact with oil within a gearbox of a rotor system, such as a wind turbine, and one or more processors. The sensor includes electrodes and a sensing circuit that generates electrical stimuli having frequencies applied to the oil at different times during a life of the gearbox. The processors receive electrical signals from the resonant sensor representative of impedance responses of the oil to the electrical stimuli. The processors analyze the impedance responses and determine a concentration of a polar analyte in the oil at different times. The processors calculate a degradation value for the gearbox based on the concentration of the polar analyte. Responsive to the degradation value exceeding a designated threshold, the processors at least one of schedule maintenance for the rotor system, provide an alert to schedule maintenance, or prohibit operation of the rotor system until maintenance is performed.
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公开(公告)号：US20170138922A1
公开(公告)日：2017-05-18
申请号：US15418847
申请日：2017-01-30
Applicant: General Electric Company
Inventor： Radislav Alexandrovich Potyrailo , Michael Garry , John Mihok , Robert Mcleod
CPC classification number: G01N33/2888 , G01M13/021 , G01N27/026
Abstract: A system includes a resonant sensor in contact with oil within a gearbox of a rotor system, such as a wind turbine, and one or more processors. The sensor includes electrodes and a sensing circuit that generates electrical stimuli having frequencies applied to the oil at different times during a life of the gearbox. The processors receive electrical signals from the resonant sensor representative of impedance responses of the oil to the electrical stimuli. The processors analyze the impedance responses and determine a concentration of a polar analyte in the oil at different times. The processors calculate a degradation value for the gearbox based on the concentration of the polar analyte. Responsive to the degradation value exceeding a designated threshold, the processors at least one of schedule maintenance for the rotor system, provide an alert to schedule maintenance, or prohibit operation of the rotor system until maintenance is performed.
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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：US11378063B2
公开(公告)日：2022-07-05
申请号：US16797593
申请日：2020-02-21
Applicant: GENERAL ELECTRIC COMPANY
Inventor： Zhanpan Zhang , Peter Alan Gregg , Jin Xia , John Mihok , Guangliang Zhao , Bouchra Bouqata
Abstract: A method of correcting turbine underperformance includes calculating a power production curve using monitored data, detecting changes between the monitored data and a baseline power production curve, generating operability curves for paired operational variables from the monitored data, detecting changes between the operability curves and corresponding baseline operability curves, comparing the changes to a respective predetermined metric, and if the change exceeds the metric, providing feedback to a turbine control system identifying at least one of the paired operational variables for each paired variable in excess of the metric. A system and a non-transitory computer-readable medium are also disclosed.
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