Patents by Inventor Ameet Shridhar Deshpande
Ameet Shridhar Deshpande 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).
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Patent number: 11661919Abstract: A method for controlling a wind turbine connected to an electrical grid includes receiving, via a controller, a state estimate of the wind turbine. The method also includes determining, via the controller, a current condition of the wind turbine using, at least, the state estimate, the current condition defining a set of condition parameters of the wind turbine. Further, the method includes receiving, via the controller, a control function from a supervisory controller, the control function defining a relationship of the set of condition parameters with at least one operational parameter of the wind turbine. Moreover, the method includes dynamically controlling, via the controller, the wind turbine based on the current condition and the control function for multiple dynamic control intervals.Type: GrantFiled: January 20, 2021Date of Patent: May 30, 2023Assignee: General Electric CompanyInventors: Frederick Wilson Wheeler, Dayu Huang, George Theodore Dalakos, Ameet Shridhar Deshpande, Su Liu, Dhiraj Arora, Siyun Wang
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Patent number: 11635060Abstract: A method for operating a wind turbine includes determining one or more loading and travel metrics or functions thereof for one or more components of the wind turbine during operation of the wind turbine. The method also includes generating, at least in part, at least one distribution of cumulative loading data for the one or more components using the one or more loading and travel metrics during operation of the wind turbine. Further, the method includes applying a life model of the one or more components to the at least one distribution of cumulative loading data to determine an actual damage accumulation for the one or more components of the wind turbine to date. Moreover, the method includes implementing a corrective action for the wind turbine based on the damage accumulation.Type: GrantFiled: January 20, 2021Date of Patent: April 25, 2023Assignee: General Electric CompanyInventors: Dayu Huang, Frederick Wilson Wheeler, George Theodore Dalakos, Ameet Shridhar Deshpande, Su Liu
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Publication number: 20230003192Abstract: A method for preventing a pitch bearing failure of a pitch system of a wind turbine includes monitoring, via at least one sensor, one or more electrical signals of a pitch motor of a pitch drive mechanism of the pitch system that drives a pitch bearing of the pitch system. The method also includes analyzing, via the controller, the one or more electrical signals of the pitch motor so as to remove noise and amplify outliers. Moreover, the method includes estimating bearing friction of the pitch bearing using the analyzed one or more electrical signals of the pitch motor. As such, the method includes implementing, via the controller, a control action when the estimated bearing friction of the pitch bearing indicates an anomaly in the pitch bearing.Type: ApplicationFiled: October 30, 2019Publication date: January 5, 2023Inventors: Ameet Shridhar Deshpande, John Joseph Mihok, Ashley Simone Wilford, Michael James Rizzo, Santiago Murcia
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Publication number: 20220228559Abstract: A method for controlling a wind turbine connected to an electrical grid includes receiving, via a controller, a state estimate of the wind turbine. The method also includes determining, via the controller, a current condition of the wind turbine using, at least, the state estimate, the current condition defining a set of condition parameters of the wind turbine. Further, the method includes receiving, via the controller, a control function from a supervisory controller, the control function defining a relationship of the set of condition parameters with at least one operational parameter of the wind turbine. Moreover, the method includes dynamically controlling, via the controller, the wind turbine based on the current condition and the control function for multiple dynamic control intervals.Type: ApplicationFiled: January 20, 2021Publication date: July 21, 2022Inventors: Frederick Wilson Wheeler, Dayu Huang, George Theodore Dalakos, Ameet Shridhar Deshpande, Su Liu, Dhiraj Arora, Siyun Wang
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Publication number: 20220228560Abstract: A method for operating a wind turbine includes determining one or more loading and travel metrics or functions thereof for one or more components of the wind turbine during operation of the wind turbine. The method also includes generating, at least in part, at least one distribution of cumulative loading data for the one or more components using the one or more loading and travel metrics during operation of the wind turbine. Further, the method includes applying a life model of the one or more components to the at least one distribution of cumulative loading data to determine an actual damage accumulation for the one or more components of the wind turbine to date. Moreover, the method includes implementing a corrective action for the wind turbine based on the damage accumulation.Type: ApplicationFiled: January 20, 2021Publication date: July 21, 2022Inventors: Dayu Huang, Frederick Wilson Wheeler, George Theodore Dalakos, Ameet Shridhar Deshpande, Su Liu
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Publication number: 20210115896Abstract: A method for mitigating loads acting on a rotor blade of a wind turbine includes determining, via a state estimator of a controller, a blade state estimation of the rotor blade. The method also includes reconstructing, via the controller, one or more loading signals of the rotor blade from the blade state estimation using modal analysis such that the loading signal(s) include a lead time. Further, the method includes comparing the loading signal(s) of the rotor blade to a loading threshold. Moreover, the method includes implementing a control action based on the comparison such that the lead time provided by the loading signal(s) allows the control action to take effect before a damaging load occurs on the rotor blade.Type: ApplicationFiled: October 15, 2020Publication date: April 22, 2021Inventors: Ameet Shridhar Deshpande, Shuang Gu, Pranav Agarwal, Prashanth Kumar Reddy Vaddi, Bernard Landa, Arne Koerber
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Patent number: 10808681Abstract: A method for controlling a wind turbine based on aerodynamic performance maps that account for blade twist includes controlling the wind turbine based on at least one aerodynamic performance map. Further, the method includes determining at least one speed parameter of the wind turbine. Moreover, the method includes determining a blade torsional stiffness factor. Thus, the method further includes determining, via the processor, a twist correction factor for the aerodynamic performance map as a function of the at least one speed parameter and the blade torsional stiffness factor. The method then includes applying the twist correction factor to the at least one aerodynamic performance map to obtain an adjusted aerodynamic performance map. In addition, the method includes controlling the wind turbine based on the adjusted aerodynamic performance map.Type: GrantFiled: January 23, 2018Date of Patent: October 20, 2020Assignee: General Electric CompanyInventors: Ameet Shridhar Deshpande, Arne Koerber, Sara Simonne Delport
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Patent number: 10774810Abstract: The present disclosure is directed to a method for estimating tower loads, such as tower deflection, of a wind turbine. The method includes receiving an estimate of slow variations in thrust of a tower of the wind turbine. The method also includes determining, via one or more sensors, tower accelerations of the tower of the wind turbine. Thus, the method also includes estimating the tower loads of the wind turbine as a function of the estimate of slow variations in thrust of the tower and the tower accelerations.Type: GrantFiled: April 25, 2016Date of Patent: September 15, 2020Assignee: General Electric CompanyInventors: Ameet Shridhar Deshpande, Pranav Agarwal
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Publication number: 20190226451Abstract: A method for controlling a wind turbine based on aerodynamic performance maps that account for blade twist includes controlling the wind turbine based on at least one aerodynamic performance map. Further, the method includes determining at least one speed parameter of the wind turbine. Moreover, the method includes determining a blade torsional stiffness factor. Thus, the method further includes determining, via the processor, a twist correction factor for the aerodynamic performance map as a function of the at least one speed parameter and the blade torsional stiffness factor. The method then includes applying the twist correction factor to the at least one aerodynamic performance map to obtain an adjusted aerodynamic performance map. In addition, the method includes controlling the wind turbine based on the adjusted aerodynamic performance map.Type: ApplicationFiled: January 23, 2018Publication date: July 25, 2019Inventors: Ameet Shridhar Deshpande, Arne Koerber, Sara Simonne Delport
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Patent number: 10100812Abstract: A wind turbine system is presented. The wind turbine system includes a wind turbine tower, a plurality of blades, a rotor supported by the wind turbine tower and rotatably coupled to the plurality of blades, a torque control device coupled to the rotor, and a control system programmed to predict an over-speeding time T of an occurrence of an over-speed rotor event based at least in part upon a current rotor acceleration and a current rotor speed, that cannot be compensated by an available counter-torque margin of the torque control device, and, in response, to generate pitch commands for the pitch angles of the plurality of blades to avoid the over-speed rotor event.Type: GrantFiled: June 30, 2014Date of Patent: October 16, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Ameet Shridhar Deshpande, Pranav Agarwal
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Patent number: 10047722Abstract: The present disclosure is directed to a method for controlling a wind turbine having a rotor with a plurality of rotor blades mounted thereto based on a spatial wind speed distribution. The method includes monitoring, via at least one sensor, one or more operating conditions of the wind turbine. The method also includes determining a rotor azimuth angle of the wind turbine. In addition, the method includes determining, via a physics-based model, at least one individual wind speed for one or more of the rotor blades of the wind turbine based on the one or more operating conditions and the rotor azimuth angle. The method also includes determining a spatial wind speed distribution of the wind turbine based on the at least one individual wind speed. Thus, the method further includes controlling the wind turbine based on the spatial wind speed distribution.Type: GrantFiled: July 28, 2016Date of Patent: August 14, 2018Assignee: General Electric CompanyInventors: Prashanth Kumar Reddy Vaddi, Venkata Krishna Vadlamudi, Pranav Agarwal, Ameet Shridhar Deshpande
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Patent number: 9926912Abstract: The present disclosure is directed to a system and method for estimating an overall wind coherence acting on a wind turbine and using same to dynamically adapt the gain or bandwidth of pitch or torque or yaw control logic within a wind turbine. The method includes generating, via sensors, a plurality of sensor signals reflective of wind conditions near the wind turbine. The method also includes filtering, via at least one filter, the sensor signals at a predetermined frequency range considered damaging for turbine sub-system loading. Thus, the method also includes estimating an overall damaging wind coherence acting on the wind turbine as a function of distance-normalized wind coherences, which themselves are derived from auto and cross-covariances of pairs of filtered signals. The distance normalization uses a model of natural coherence dissipation with distance.Type: GrantFiled: August 30, 2016Date of Patent: March 27, 2018Assignee: General Electric CompanyInventors: Ameet Shridhar Deshpande, Timothy J. McCoy, Sandeep Gupta
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Publication number: 20180058425Abstract: The present disclosure is directed to a system and method for estimating an overall wind coherence acting on a wind turbine and using same to dynamically adapt the gain or bandwidth of pitch or torque or yaw control logic within a wind turbine. The method includes generating, via sensors, a plurality of sensor signals reflective of wind conditions near the wind turbine. The method also includes filtering, via at least one filter, the sensor signals at a predetermined frequency range considered damaging for turbine sub-system loading. Thus, the method also includes estimating an overall damaging wind coherence acting on the wind turbine as a function of distance-normalized wind coherences, which themselves are derived from auto and cross-covariances of pairs of filtered signals. The distance normalization uses a model of natural coherence dissipation with distance.Type: ApplicationFiled: August 30, 2016Publication date: March 1, 2018Inventors: Ameet Shridhar Deshpande, Timothy J. McCoy, Sandeep Gupta
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Publication number: 20180030955Abstract: The present disclosure is directed to a method for controlling a wind turbine having a rotor with a plurality of rotor blades mounted thereto based on a spatial wind speed distribution. The method includes monitoring, via at least one sensor, one or more operating conditions of the wind turbine. The method also includes determining a rotor azimuth angle of the wind turbine. In addition, the method includes determining, via a physics-based model, at least one individual wind speed for one or more of the rotor blades of the wind turbine based on the one or more operating conditions and the rotor azimuth angle. The method also includes determining a spatial wind speed distribution of the wind turbine based on the at least one individual wind speed. Thus, the method further includes controlling the wind turbine based on the spatial wind speed distribution.Type: ApplicationFiled: July 28, 2016Publication date: February 1, 2018Inventors: Prashanth Kumar Reddy Vaddi, Venkata Krishna Vadlamudi, Pranav Agarwal, Ameet Shridhar Deshpande
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Publication number: 20180003154Abstract: A method for constrained control of a wind turbine includes receiving a plurality of operating parameters corresponding to the wind turbine. The plurality of operating parameters includes a wind preview parameter and a plurality of constraint parameters. The method further includes generating a constraint parameter estimate corresponding to a future time instant for at least one constraint parameter of the plurality of constraint parameters based on the plurality of operating parameters and a wind preview model. The method also includes predicting an extreme event corresponding to the at least one constraint parameter based on the constraint parameter estimate. The method includes determining a control parameter value corresponding to a wind turbine control parameter among a plurality of wind turbine control parameters. The method also includes operating the wind turbine using a feedforward control technique based on the control parameter value to circumvent the extreme event.Type: ApplicationFiled: June 30, 2016Publication date: January 4, 2018Inventors: Ameet Shridhar Deshpande, Pranav Agarwal, Conner Brooks Shane
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Publication number: 20170306926Abstract: The present disclosure is directed to a method for estimating tower loads, such as tower deflection, of a wind turbine. The method includes receiving an estimate of slow variations in thrust of a tower of the wind turbine. The method also includes determining, via one or more sensors, tower accelerations of the tower of the wind turbine. Thus, the method also includes estimating the tower loads of the wind turbine as a function of the estimate of slow variations in thrust of the tower and the tower accelerations.Type: ApplicationFiled: April 25, 2016Publication date: October 26, 2017Inventors: Ameet Shridhar Deshpande, Pranav Agarwal
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Patent number: 9587629Abstract: A wind turbine system is presented. The wind turbine system includes a tower, a plurality of blades, a rotor supported by the tower and rotatably coupled to the plurality of blades, a control unit programmed to predict a net energy of the tower at one or more future points in time, and if the predicted net energy is within a design limit, then continue with baseline operating control models for normal operation of the wind turbine system, if the predicted net energy exceeds the design limit, then use a non-linear tower damping model to generate tower damping commands to control tower damping of the wind turbine system.Type: GrantFiled: June 30, 2014Date of Patent: March 7, 2017Assignee: General Electric CompanyInventors: Ameet Shridhar Deshpande, Pranav Agarwal
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Publication number: 20150377213Abstract: A wind turbine system is presented. The wind turbine system includes a tower, a plurality of blades, a rotor supported by the tower and rotatably coupled to the plurality of blades, a control unit programmed to predict a net energy of the tower at one or more future points in time, and if the predicted net energy is within a design limit, then continue with baseline operating control models for normal operation of the wind turbine system, if the predicted net energy exceeds the design limit, then use a non-linear tower damping model to generate tower damping commands to control tower damping of the wind turbine system.Type: ApplicationFiled: June 30, 2014Publication date: December 31, 2015Inventors: Ameet Shridhar Deshpande, Pranav Agarwal
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Publication number: 20150377216Abstract: A wind turbine system is presented. The wind turbine system includes a wind turbine tower, a plurality of blades, a rotor supported by the wind turbine tower and rotatably coupled to the plurality of blades, a torque control device coupled to the rotor, and a control system programmed to predict an over-speeding time T of an occurrence of an over-speed rotor event based at least in part upon a current rotor acceleration and a current rotor speed, that cannot be compensated by an available counter-torque margin of the torque control device, and, in response, to generate pitch commands for the pitch angles of the plurality of blades to avoid the over-speed rotor event.Type: ApplicationFiled: June 30, 2014Publication date: December 31, 2015Inventors: Ameet Shridhar Deshpande, Pranav Agarwal
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Patent number: 8649911Abstract: A technique is provided for operating a wind farm at increased rated power output. The technique includes sensing a plurality of operating parameters of the wind turbine generator, assessing the plurality of operating parameters with respect to respective design ratings for the operating parameters, and intermittently increasing a rated power output of the wind turbine generator based upon the assessment.Type: GrantFiled: June 3, 2005Date of Patent: February 11, 2014Assignee: General Electric CompanyInventors: Aaron John Avagliano, Ralph Teichmann, Kirk Gee Pierce, Paul David Hopewell, Ameet Shridhar Deshpande, Sukru Alper Eker