Patents by Inventor Shashidhar Nibhanupudi

Shashidhar Nibhanupudi 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).

  • Patent number: 10084409
    Abstract: A brushless synchronous machine with a limiter for main field voltage and a method of limiting main field voltage in a brushless synchronous machine are described. The machine includes a regulator to use a field current to excite main field windings and generate the main field voltage. The machine also includes a limiter to limit the field current to maintain the main field voltage corresponding to the field current below a limit based on a transfer function.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: September 25, 2018
    Assignee: General Electric Company
    Inventors: Sreedhar Desabhatla, Shashidhar Nibhanupudi
  • Publication number: 20150349696
    Abstract: A brushless synchronous machine with a limiter for main field voltage and a method of limiting main field voltage in a brushless synchronous machine are described. The machine includes a regulator to use a field current to excite main field windings and generate the main field voltage. The machine also includes a limiter to limit the field current to maintain the main field voltage corresponding to the field current below a limit based on a transfer function.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 3, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sreedhar Desabhatla, Shashidhar Nibhanupudi
  • Patent number: 9157406
    Abstract: A method for initializing a generator may include sending a field reference voltage to an exciter that may provide a direct current (DC) current and a DC voltage to a rotor of a generator based on a current set point that corresponds to the field reference voltage. The method may then include receiving a voltage feedback signal output by the generator, determining one or more locations of one or more poles of the generator based on the voltage feedback signal, and sending one or more firing signals to one or more switches of a starter after determining the locations of the poles, such that the switches couple the voltage to a stator of the generator.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: October 13, 2015
    Assignee: General Electric Company
    Inventors: Sreedhar Desabhatla, William Robert Pearson, John Andrew Leonard, John Carver Maters, Shashidhar Nibhanupudi, Sudeep Pathak
  • Publication number: 20150219055
    Abstract: A method for initializing a generator may include sending a field reference voltage to an exciter that may provide a direct current (DC) current and a DC voltage to a rotor of a generator based on a current set point that corresponds to the field reference voltage. The method may then include receiving a voltage feedback signal output by the generator, determining one or more locations of one or more poles of the generator based on the voltage feedback signal, and sending one or more firing signals to one or more switches of a starter after determining the locations of the poles, such that the switches couple the voltage to a stator of the generator.
    Type: Application
    Filed: February 5, 2014
    Publication date: August 6, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Sreedhar Desabhatla, William Robert Pearson, John Andrew Leonard, John Carver Maters, Shashidhar Nibhanupudi, Sudeep Pathak
  • Patent number: 8964337
    Abstract: Systems and methods for monitoring excitation of a generator based on a faulty status of a generator breaker are provided. According to one embodiment, a system may include a controller and a processor communicatively coupled to the controller. The processor may be configured to receive, from a contact associated with a generator breaker, a reported status of the generator breaker, receive operational data associated with one or more parameters of a generator associated with the generator breaker, and correlate the reported status of the generator breaker and the operational data. Based on the correlation, the processor may establish an actual status of the generator breaker, and, based on the actual status, selectively modify a mode of excitation of the generator.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: February 24, 2015
    Assignee: General Electric Company
    Inventors: Abhinandan Sharma, Shashidhar Nibhanupudi, Sridhar Nedunsezian
  • Publication number: 20140185166
    Abstract: Systems and methods for monitoring excitation of a generator based on a faulty status of a generator breaker are provided. According to one embodiment, a system may include a controller and a processor communicatively coupled to the controller. The processor may be configured to receive, from a contact associated with a generator breaker, a reported status of the generator breaker, receive operational data associated with one or more parameters of a generator associated with the generator breaker, and correlate the reported status of the generator breaker and the operational data. Based on the correlation, the processor may establish an actual status of the generator breaker, and, based on the actual status, selectively modify a mode of excitation of the generator.
    Type: Application
    Filed: December 28, 2012
    Publication date: July 3, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Abhinandan Sharma, Shashidhar Nibhanupudi, Sridhar N
  • Patent number: 8478568
    Abstract: A system for predicting a condition includes an electric machine having slip rings and an exciter providing current and voltage to the electric machine through the slip rings. The system also includes a monitoring device that measures the current and voltage provided by the exciter to the electric machine and that forms a regression model from a current sample and compares values from a next sample to values predicted by the regression model.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: July 2, 2013
    Assignee: General Electric Company
    Inventors: Sreedhar Desabhatla, Shashidhar Nibhanupudi
  • Publication number: 20120105022
    Abstract: A system for predicting a condition includes an electric machine having slip rings and an exciter providing current and voltage to the electric machine through the slip rings. The system also includes a monitoring device that measures the current and voltage provided by the exciter to the electric machine and that forms a regression model from a current sample and compares values from a next sample to values predicted by the regression model.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Applicant: General Electric Company
    Inventors: Sreedhar Desabhatla, Shashidhar Nibhanupudi