Patents by Inventor Akshay KRISHNAMURTY
Akshay KRISHNAMURTY 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: 10781795Abstract: The present disclosure is directed to a method for detecting a mass imbalance in a rotor of a wind turbine. The method includes receiving, with a computing device, sensor data indicative of an operating characteristic of the wind turbine. The method also includes determining, with the computing device, a mean amplitude of a designated frequency component of the operating characteristic. Furthermore, the method includes determining, with the computing device, when a mass imbalance is present within the rotor based on the mean amplitude of the designated frequency component.Type: GrantFiled: November 13, 2017Date of Patent: September 22, 2020Assignee: General Electric CompanyInventors: Oladodja Achraf Gbadamassi, Akshay Krishnamurty Ambekar, Soeren Georg
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Patent number: 10711766Abstract: A method implemented using at least one processor module includes receiving a plurality of operational parameters corresponding to a plurality of wind turbines and obtaining a plurality of source sound power values corresponding to the plurality of wind turbines. The method further includes obtaining a receptor sound pressure value corresponding to a receptor location and estimating an attenuation model based on the plurality of source sound power values, and the receptor sound pressure value. The attenuation model disclosed herein comprises a plurality of attenuation coefficients. The method also includes determining at least one turbine set-point corresponding to at least one wind turbine among the plurality of wind turbines based on the plurality of attenuation coefficients, and the plurality of turbine operational parameters.Type: GrantFiled: July 30, 2015Date of Patent: July 14, 2020Assignee: General Electric CompanyInventors: Akshay Krishnamurty Ambekar, Vishal Cholapadi Ravindra, Benoit Philippe Petitjean, Kalpit Vikrambhai Desai
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Patent number: 10371124Abstract: The present disclosure is directed to a system and method for determining wake losses of a wind farm. The wind farm includes a plurality of wind turbines. The method includes operating the wind farm in a first operational mode. Another step includes collecting turbine-level data from at least one upstream wind turbines in the wind farm during the first operational mode. The method also includes estimating a freestream farm-level power output for the wind farm during first operational mode based, at least in part, on the collected turbine-level data. A further step includes measuring an actual farm-level power output for the wind farm for the first operational mode. Thus, the method also includes determining the wake losses of the wind farm for the first operational mode as a function of the measured actual farm-level power output and the estimated freestream farm-level power output.Type: GrantFiled: May 17, 2016Date of Patent: August 6, 2019Assignee: General Electric CompanyInventors: Megan Wilson, Stefan Kern, Akshay Krishnamurty Ambekar
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Publication number: 20190183997Abstract: Provided herein are methods of sorting antigen-specific IgM memory B cells (MBCs), compositions and methods comprising such antigen-specific IgM MBCs, and recombinant antibody or antigen-binding fragments isolated from such antigen-specific IgM MBCs. As demonstrated herein, IgM and IgD MBCs are unique populations of cells with distinct phenotypic, functional and survival properties. Accordingly, the antigen-specific IgM MBCs and antibodies and antigen-binding fragments derived from these cells described herein are useful in therapeutic applications in vaccine strategies and treatment of infectious diseases.Type: ApplicationFiled: July 21, 2017Publication date: June 20, 2019Applicants: UNIVERSITY OF WASHINGTON, SEATTLE CHILDREN'S HOSPITAL D/B/A SEATTLE CHILDREN'S RESEARCH INSTITUTEInventors: Marion PEPPER, Akshay KRISHNAMURTY, David J. RAWLINGS, Christopher THOUVENEL
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Publication number: 20190145381Abstract: The present disclosure is directed to a method for detecting a mass imbalance in a rotor of a wind turbine. The method includes receiving, with a computing device, sensor data indicative of an operating characteristic of the wind turbine. The method also includes determining, with the computing device, a mean amplitude of a designated frequency component of the operating characteristic. Furthermore, the method includes determining, with the computing device, when a mass imbalance is present within the rotor based on the mean amplitude of the designated frequency component.Type: ApplicationFiled: November 13, 2017Publication date: May 16, 2019Inventors: Oladodja Achraf Gbadamassi, Akshay Krishnamurty Ambekar, Soeren Georg
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Patent number: 10100813Abstract: Methods and systems for optimizing operation of a wind farm are disclosed. The method includes providing a farm-level wake model for the wind farm based on historical wake parameters corresponding to reference sets of interacting wind turbines in the wind farm. Another step includes monitoring one or more real-time wake parameters for wind turbines in the wind farm. A further step includes identifying at least two interacting wind turbines from the reference sets based on the wake parameters. Another step includes determining a wake offset angle between the interacting wind turbines as a function of at least one of a wind direction, a geometry between the interacting wind turbines, or a wake meandering component. The method also includes continuously updating the wake model online based at least partially on the wake parameters and the wake offset angle and controlling the interacting wind turbines based on the updated wake model.Type: GrantFiled: November 24, 2014Date of Patent: October 16, 2018Assignee: General Electric CompanyInventors: Vishal Cholapadi Ravindra, Akshay Krishnamurty Ambekar, Siddhanth Chandrashekar
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Patent number: 10066604Abstract: A method for optimizing a hybrid wind system including a wind farm having a plurality of wind turbines and one or more energy storage units, is presented. The method includes acquiring actual wind power data associated with one or more dispatch windows. The method includes determining forecasted wind farm power estimates corresponding to the dispatch windows using a plurality of forecast schemes. The method includes computing difference values by comparing the forecasted wind farm power estimates to the actual wind power data. The method includes identifying a wind power forecast scheme based at least in part on the computed difference values and balancing a penalty to the grid with life consumption of the energy storage units while regulating the wind turbines and the energy storage units based at least in part on a subsequent forecasted wind farm power estimate generated using the identified wind power forecast scheme.Type: GrantFiled: May 12, 2015Date of Patent: September 4, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Dipankar Deb, Akshay Krishnamurty Ambekar, Deepak Raj Sagi
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Patent number: 10050447Abstract: A multi-farm wind power dispatch management system is provided which includes wind turbine dispatch controllers for controlling wind power dispatch of respective wind farm components and wind farm dispatch management systems for receiving respective wind farm component operating parameters and generating respective farm-level operating parameters. The system also includes group dispatch management systems for receiving the farm-level operating parameters and generating respective group level operating parameters.Type: GrantFiled: March 26, 2014Date of Patent: August 14, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Rajni Kant Burra, Avijit Saha, Venkatarao Ryali, Govardhan Ganireddy, Akshay Krishnamurty Ambekar, Deepak Raj Sagi
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Patent number: 10018185Abstract: A system for commissioning a wind turbine is provided. The system includes a test wind turbine, one or more additional wind turbines coupled to the test wind turbine, and a control system. The control system includes a first control module for controlling the one or more additional wind turbines to act as a power source and provide power to the test wind turbine. The control system also includes a second control module for controlling the one or more additional wind turbines to act as a load for dissipating test power generated by the test wind turbine.Type: GrantFiled: December 29, 2014Date of Patent: July 10, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Sumitha Mohan, Minesh Ashok Shah, Rajni Kant Burra, Govardhan Ganireddy, Akshay Krishnamurty Ambekar, Murali Mohan Baggu Data Venkata Satya, Allen Michael Ritter
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Patent number: 9983087Abstract: A system is presented. The system includes a stator component, a rotor component rotating inside the stator component, a plurality of features disposed on the periphery of the stator component or the rotor component, and a processing subsystem for determining at least one of an amount of rotor imbalance and an orientation of the rotor imbalance at least based upon feature-to-feature speed variation of the plurality of features.Type: GrantFiled: December 10, 2014Date of Patent: May 29, 2018Assignee: GENERAL ELECTRIC COMPANYInventors: Mahesh Raveendranatha Panicker, Aninda Bhattacharya, Akshay Krishnamurty Ambekar, Bret Dwayne Worden
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Publication number: 20170335827Abstract: The present disclosure is directed to a system and method for determining wake losses of a wind farm. The wind farm includes a plurality of wind turbines. The method includes operating the wind farm in a first operational mode. Another step includes collecting turbine-level data from at least one upstream wind turbines in the wind farm during the first operational mode. The method also includes estimating a freestream farm-level power output for the wind farm during first operational mode based, at least in part, on the collected turbine-level data. A further step includes measuring an actual farm-level power output for the wind farm for the first operational mode. Thus, the method also includes determining the wake losses of the wind farm for the first operational mode as a function of the measured actual farm-level power output and the estimated freestream farm-level power output.Type: ApplicationFiled: May 17, 2016Publication date: November 23, 2017Inventors: Megan Wilson, Stefan Kern, Akshay Krishnamurty Ambekar
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Patent number: 9551322Abstract: Embodiments of methods and systems for optimizing operation of a wind farm are presented. The method includes receiving new values corresponding to at least some wake parameters for wind turbines in the wind farm. The method further includes identifying new sets of interacting wind turbines from the wind turbines based on the new values. Additionally, the method includes developing a farm-level predictive wake model for the new sets of interacting wind turbines based on the new values and historical wake models determined using historical values of the wake parameters corresponding to reference sets of interacting wind turbines in the wind farm. Furthermore, the method includes adjusting one or more control settings for at least the new sets of interacting wind turbines based on the farm-level predictive wake model.Type: GrantFiled: April 21, 2015Date of Patent: January 24, 2017Assignee: GENERAL ELECTRIC COMPANYInventors: Akshay Krishnamurty Ambekar, Krishnarao Dattaram Dhuri, Siddhanth Chandrashekar, Kalpit Vikrambhai Desai, Anup Menon
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Publication number: 20160169765Abstract: A system is presented. The system includes a stator component, a rotor component rotating inside the stator component, a plurality of features disposed on the periphery of the stator component or the rotor component, and a processing subsystem for determining at least one of an amount of rotor imbalance and an orientation of the rotor imbalance at least based upon feature-to-feature speed variation of the plurality of features.Type: ApplicationFiled: December 10, 2014Publication date: June 16, 2016Inventors: Mahesh Raveendranatha Panicker, Aninda Bhattacharya, Akshay Krishnamurty Ambekar, Bret Dwayne Worden
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Publication number: 20160146190Abstract: Methods and systems for optimizing operation of a wind farm are disclosed. The method includes providing a farm-level wake model for the wind farm based on historical wake parameters corresponding to reference sets of interacting wind turbines in the wind farm. Another step includes monitoring one or more real-time wake parameters for wind turbines in the wind farm. A further step includes identifying at least two interacting wind turbines from the reference sets based on the wake parameters. Another step includes determining a wake offset angle between the interacting wind turbines as a function of at least one of a wind direction, a geometry between the interacting wind turbines, or a wake meandering component. The method also includes continuously updating the wake model online based at least partially on the wake parameters and the wake offset angle and controlling the interacting wind turbines based on the updated wake model.Type: ApplicationFiled: November 24, 2014Publication date: May 26, 2016Inventors: Vishal Cholapadi Ravindra, Akshay Krishnamurty Ambekar, Siddhanth Chandrashekar
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Publication number: 20160049792Abstract: A multi-farm wind power dispatch management system is provided which includes wind turbine dispatch controllers for controlling wind power dispatch of respective wind farm components and wind farm dispatch management systems for receiving respective wind farm component operating parameters and generating respective farm-level operating parameters. The system also includes group dispatch management systems for receiving the farm-level operating parameters and generating respective group level operating parameters.Type: ApplicationFiled: March 26, 2014Publication date: February 18, 2016Applicant: General Electric CompanyInventors: Rajni Kant BURRA, Avijit SAHA, Venkatarao RYALI, Govardhan GANIREDDY, Akshay Krishnamurty AMBEKAR, Deepak Raj SAGI
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Publication number: 20160032894Abstract: A method implemented using at least one processor module includes receiving a plurality of operational parameters corresponding to a plurality of wind turbines and obtaining a plurality of source sound power values corresponding to the plurality of wind turbines. The method further includes obtaining a receptor sound pressure value corresponding to a receptor location and estimating an attenuation model based on the plurality of source sound power values, and the receptor sound pressure value. The attenuation model disclosed herein comprises a plurality of attenuation coefficients. The method also includes determining at least one turbine set-point corresponding to at least one wind turbine among the plurality of wind turbines based on the plurality of attenuation coefficients, and the plurality of turbine operational parameters.Type: ApplicationFiled: July 30, 2015Publication date: February 4, 2016Inventors: Akshay Krishnamurty AMBEKAR, Vishal Cholapadi RAVINDRA, Benoit Philippe PETITJEAN, Kalpit Vikrambhai DESAI
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Publication number: 20150330365Abstract: A method for optimizing a hybrid wind system including a wind farm having a plurality of wind turbines and one or more energy storage units, is presented. The method includes acquiring actual wind power data associated with one or more dispatch windows. The method includes determining forecasted wind farm power estimates corresponding to the dispatch windows using a plurality of forecast schemes. The method includes computing difference values by comparing the forecasted wind farm power estimates to the actual wind power data. The method includes identifying a wind power forecast scheme based at least in part on the computed difference values and balancing a penalty to the grid with life consumption of the energy storage units while regulating the wind turbines and the energy storage units based at least in part on a subsequent forecasted wind farm power estimate generated using the identified wind power forecast scheme.Type: ApplicationFiled: May 12, 2015Publication date: November 19, 2015Inventors: Dipankar Deb, Akshay Krishnamurty Ambekar, Deepak Raj Sagi
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Publication number: 20150308416Abstract: Embodiments of methods and systems for optimizing operation of a wind farm are presented. The method includes receiving new values corresponding to at least some wake parameters for wind turbines in the wind farm. The method further includes identifying new sets of interacting wind turbines from the wind turbines based on the new values. Additionally, the method includes developing a farm-level predictive wake model for the new sets of interacting wind turbines based on the new values and historical wake models determined using historical values of the wake parameters corresponding to reference sets of interacting wind turbines in the wind farm. Furthermore, the method includes adjusting one or more control settings for at least the new sets of interacting wind turbines based on the farm-level predictive wake model.Type: ApplicationFiled: April 21, 2015Publication date: October 29, 2015Inventors: Akshay Krishnamurty AMBEKAR, Krishnarao Dattaram DHURI, Siddhanth CHANDRASHEKAR, Kalpit Vikrambhai DESAI, Anup MENON
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Publication number: 20150184642Abstract: A system for commissioning a wind turbine is provided. The system includes a test wind turbine, one or more additional wind turbines coupled to the test wind turbine, and a control system. The control system includes a first control module for controlling the one or more additional wind turbines to act as a power source and provide power to the test wind turbine. The control system also includes a second control module for controlling the one or more additional wind turbines to act as a load for dissipating test power generated by the test wind turbine.Type: ApplicationFiled: December 29, 2014Publication date: July 2, 2015Inventors: Sumitha MOHAN, Minesh Ashok SHAH, Rajni Kant BURRA, Govardhan GANIREDDY, Akshay Krishnamurty AMBEKAR, Murali Mohan BAGGU DATA VENKATA SATYA, Allen Michael RITTER