Patents by Inventor Rajni Kant Burra
Rajni Kant Burra 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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Publication number: 20160197559Abstract: A system includes a source side converter for being electrically coupled to a generator of a power source, a line side converter for being electrically coupled to a power network, a DC link coupled between the source side converter and the line side converter, and a controller for generating source side switching signals based on a current or torque of the generator and a virtual impedance signal for system damping or reactive power compensation when at least one detected signal of the system is not normal. A method for controlling the system is also included.Type: ApplicationFiled: December 1, 2015Publication date: July 7, 2016Inventors: Zhuohui TAN, Jinping GAO, Rajni Kant BURRA, Govardhan Ganireddy
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Publication number: 20160065105Abstract: The present disclosure is directed to a system and method for optimizing operation of a wind turbine. The method includes providing a voltage regulator between a power grid and the wind turbine. The voltage regulator is configured to control at least one voltage condition of the wind turbine. Another step includes monitoring, via one or more sensors, at least one operating condition and at least one voltage condition of the wind turbine. The method also includes comparing, via a controller, at least one of the operating condition or the voltage condition with a predetermined threshold to determine a margin-to-threshold ratio. Thus, a further step includes controlling the voltage regulator based on the comparison so as to maximize the margin-to-threshold ratio.Type: ApplicationFiled: September 3, 2014Publication date: March 3, 2016Inventors: Edward Wayne Hardwicke, JR., Cornelius Edward Holliday, Rajni Kant Burra
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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: 20150240784Abstract: A system for automatic generation control in a wind farm is provided. The system includes a wind farm controller for controlling the plurality of energy storage elements. The wind farm controller receives an automatic generation control set point from an independent system operator, generates a farm-level storage power set point for the wind farm based on the automatic generation control set point, generates individual storage power set points for the plurality of energy storage elements based on states of charge of the respective energy storage elements, and controls the plurality of energy storage elements based on the individual storage power set points for dispatching storage power to perform automatic generation control.Type: ApplicationFiled: February 18, 2015Publication date: August 27, 2015Inventors: Deepak Raj SAGI, Mark Edward CARDINAL, Avijit SAHA, Rajni Kant BURRA, Govardhan GANIREDDY
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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
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Publication number: 20150184632Abstract: A method for controlling a wind farm including a plurality of wind turbines is provided. The method includes computing an error between a farm-level base point power and a measured wind farm power, generating an aggregated farm-level active power set point for the wind farm based on the error and a frequency response set point, generating aggregated turbine-level active power set points based on the aggregated farm-level active power set point, transmitting the aggregated turbine-level active power set points, determining aero power set points and storage power set points for the respective wind turbines and energy storage elements of the respective wind turbines from the aggregated turbine-level active power set points, and controlling the plurality of wind turbines for delivering aero power based on the respective aero power set points and controlling the energy storage elements to provide storage power based on the respective storage power set points.Type: ApplicationFiled: December 18, 2014Publication date: July 2, 2015Inventors: Deepak Raj SAGI, Avijit SAHA, Govardhan GANIREDDY, Mark Edward CARDINAL, Rajni Kant BURRA
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Publication number: 20140145439Abstract: A yaw backup system is provided. The yaw backup system includes an energy storage medium for storing auxiliary power. The yaw backup system also includes a yaw controller for coordinating delivery of power from the energy storage medium to a yaw motor for controlling a yaw angle of a wind turbine during grid loss conditions. The yaw controller executes the steps of receiving wind direction signals over time from a sensor, altering a tolerance level of a wind turbine based on changes in the wind direction signals over time and controlling delivery of power to the yaw motor from the auxiliary power of the energy storage medium based on the tolerance level to control the yaw angle for reducing a load on the wind turbine induced by wind.Type: ApplicationFiled: November 7, 2013Publication date: May 29, 2014Applicant: General Electric CompanyInventors: Rajni Kant BURRA, Govardhan GANIREDDY, Victor Robert ABATE, Keith Andrew LONGTIN, Herman Lucas Norbert WIEGMAN, Robert William DELMERICO
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Publication number: 20130234680Abstract: A method for damping power oscillation in a power system includes generating synchronized generator speed signals by time stamping a plurality of generator speed signals. The synchronized speed signals are transmitted to a control station for determining power oscillations in the power system. The control station provides damping control signals to a plurality of damping devices based on power oscillations in the power system.Type: ApplicationFiled: March 8, 2013Publication date: September 12, 2013Applicant: GENERAL ELECTRIC COMPANYInventors: Amol Rajaram Kolwalkar, Rajni Kant Burra, Gurunath Gurrala
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Patent number: 8237301Abstract: A stabilization system for a power generation system including non-conventional energy source coupled to a utility grid, the stabilization system comprising: a deadband limiter configured for detecting when a signal of the power generation system is outside of a signal range; a power shaper configured for providing a transient power generation adjustment signal in response to the signal being outside of the signal range; and a limit controller to configured to prevent the adjustment signal from causing the energy source of the power generation system to operate outside of at least one operating constraint.Type: GrantFiled: January 31, 2008Date of Patent: August 7, 2012Assignee: General Electric CompanyInventors: Robert William Delmerico, Rajni Kant Burra
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Patent number: 8227929Abstract: A power generation system having a wind turbine blade assembly, a generator mechanically coupled to the blade assembly, and a power converter coupled to the generator is provided. An energy storage device and a bidirectional converter coupling the energy storage device to the power converter are also provided in the system. An inertia controller is provided for generating a first transient signal to regulate active power from the wind turbine system when a power grid signal is outside of a respective signal range. The system further includes an energy storage controller for providing a second transient signal to the bidirectional converter to regulate a power to or from the energy storage device based upon the first transient signal, power generating system conditions or combinations thereof.Type: GrantFiled: September 25, 2009Date of Patent: July 24, 2012Assignee: General Electric CompanyInventors: Rajni Kant Burra, Robert William Delmerico, Sumit Bose, Divya Kurthakoti Chandrashekhara
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Publication number: 20110137481Abstract: A system for providing energy and other ancillary services to a power grid including a renewable energy source. One or more power converters are integrated with the renewable energy source. A battery-based energy storage system is also integrated with the renewable energy source. A control system including an algorithmic software operates to control at least one power converter together with the battery-based energy storage system to supply stored battery energy to the grid when the cost of extracting the stored battery energy supplied to the grid via the battery-based energy storage system is less than the market price paid for the stored energy supplied by the battery-based energy storage system.Type: ApplicationFiled: December 23, 2009Publication date: June 9, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Devon Leigh Manz, Robert William Delmerico, Sumit Bose, Nicholas Wright Miller, Rajni Kant Burra, Kathleen Ann O'Brien
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Patent number: 7952232Abstract: Commands are generated for controlling a state of charge of an energy storage device coupled between an energy source and an auxiliary load. Commands are also generated for providing from the energy storage device to the auxiliary load and for using power from the energy storage device for controlling a DC link voltage, energy source torque, grid side power flow, or combinations thereof. Commands may also be generated to provide frequency compatible power to auxiliary loads of the energy source.Type: GrantFiled: March 13, 2008Date of Patent: May 31, 2011Assignee: General Electric CompanyInventors: Rajni Kant Burra, Robert William Delmerico, Ralph Teichmann, Abhitap Jain, Mark Shu
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Publication number: 20110074151Abstract: A power generation system having a wind turbine blade assembly, a generator mechanically coupled to the blade assembly, and a power converter coupled to the generator is provided. An energy storage device and a bidirectional converter coupling the energy storage device to the power converter are also provided in the system. An inertia controller is provided for generating a first transient signal to regulate active power from the wind turbine system when a power grid signal is outside of a respective signal range. The system further includes an energy storage controller for providing a second transient signal to the bidirectional converter to regulate a power to or from the energy storage device based upon the first transient signal, power generating system conditions or combinations thereof.Type: ApplicationFiled: September 25, 2009Publication date: March 31, 2011Applicant: GENERAL ELECTRIC COMPANYInventors: Rajni Kant Burra, Robert William Delmerico, Sumit Bose, Divya Kurthakoti Chandrashekhara
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Publication number: 20090230689Abstract: Commands are generated for controlling a state of charge of an energy storage device coupled between an energy source and an auxiliary load. Commands are also generated for providing from the energy storage device to the auxiliary load and for using power from the energy storage device for controlling a DC link voltage, energy source torque, grid side power flow, or combinations thereof. Commands may also be generated to provide frequency compatible power to auxiliary loads of the energy source.Type: ApplicationFiled: March 13, 2008Publication date: September 17, 2009Applicant: GENERAL ELECTRICInventors: Rajni Kant Burra, Robert William Delmerico, Ralph Teichmann, Abhitap Jain, Mark Shu
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Publication number: 20090194995Abstract: A stabilization system for a power generation system including non-conventional energy source coupled to a utility grid, the stabilization system comprising: a deadband limiter configured for detecting when a signal of the power generation system is outside of a signal range; a power shaper configured for providing a transient power generation adjustment signal in response to the signal being outside of the signal range; and a limit controller to configured to prevent the adjustment signal from causing the energy source of the power generation system to operate outside of at least one operating constraint.Type: ApplicationFiled: January 31, 2008Publication date: August 6, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Robert William Delmerico, Rajni Kant Burra