Patents by Inventor Vivek Gopalakrishnan

Vivek Gopalakrishnan 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: 9523972
    Abstract: An exemplary method and apparatus are directed to distributed waveform recording for fault monitoring and analysis of a fault condition in a power distribution system. One or more instrument transformers along with merging units and a plurality of Intelligent Electronic Devices (IEDs) distributed in a plurality of hierarchical levels. The distributed waveform recording corresponds to a fault event at different levels in the power distribution system data is carried out by at least two devices configured to detect an event for recording and perform waveform recording. The data used for waveform recording and the data for detection of the event are based on a single stream of the sampled measured value data and are thereby are time synchronized.
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: December 20, 2016
    Assignee: ABB Schweiz AG
    Inventors: Vivek Gopalakrishnan, Sasi Kumar S. R., Bernhard Deck
  • Patent number: 9478973
    Abstract: An exemplary method and system are disclosed for coordinated transfer of control in a substation system having IED or logical devices/servers using GOOSE messages with preconfigured data models with logical nodes containing one or more data objects including private data objects (DO) connected in the substation communication network. The method for transfer of control can be illustrated for hot-standby device management and for other applications such as logical isolation of merging unit in a substation and load sharing between IEDs. The method can be used for devices that do not have MMS stack.
    Type: Grant
    Filed: October 1, 2012
    Date of Patent: October 25, 2016
    Assignee: ABB Schweiz AG
    Inventors: Senthil Kumar Sundaram, Sasi Kumar, Vivek Gopalakrishnan, Wolfgang Wimmer
  • Patent number: 8942970
    Abstract: A method is disclosed for configuring an intelligent electronic device (IED) that includes enabling dynamic capability of the IED by a flexible data modeling technique to dynamically adapt a data model based on an application requirement using a configuration tool. A substation automation system is also disclosed which includes a local system equipment having a plurality of IEDs associated with the local system equipment and an IED configuration tool configured to interact with the firmware of each IED to configure the IED based on application requirements. The application configuration tool can include dynamic capability information of the IED to enable a flexible data model in the IED.
    Type: Grant
    Filed: December 9, 2009
    Date of Patent: January 27, 2015
    Assignee: ABB Research Ltd.
    Inventors: Sasi Kumar, Vivek Gopalakrishnan, Tobias Gentzell, Ganesh Kulathu
  • Patent number: 8880658
    Abstract: A method, a substation automation apparatus and an intelligent electronic device (IED) are disclosed which are, for example, not limited only to publishing data (data emanating) from the IED. An exemplary method includes assigning a unique identifier to one or more data fields, where the one or more data fields is associated with a short address attribute in the data emanating from the intelligent electronic device; and dynamically updating the identifier based on user specific configuration data by an IED application configuration tool. The IED can include a list of functions; (e.g., each function being represented as a logical node; and each logical node containing data objects); and a flexible addressing scheme for configuring the data objects and publishing data from the IED, but not only data emanating from IED.
    Type: Grant
    Filed: December 2, 2011
    Date of Patent: November 4, 2014
    Assignee: ABB Technology Ltd
    Inventors: Ganesh Kulathu, Uwe Klich, Sasi Kumar, Vivek Gopalakrishnan, Tobias Gentzell, Padmasri Krishnamurthy
  • Publication number: 20140136002
    Abstract: An exemplary method and apparatus are directed to distributed waveform recording for fault monitoring and analysis of a fault condition in a power distribution system. One or more instrument transformers along with merging units and a plurality of Intelligent Electronic Devices (IEDs) distributed in a plurality of hierarchical levels. The distributed waveform recording corresponds to a fault event at different levels in the power distribution system data is carried out by at least two devices configured to detect an event for recording and perform waveform recording. The data used for waveform recording and the data for detection of the event are based on a single stream of the sampled measured value data and are thereby are time synchronized.
    Type: Application
    Filed: December 27, 2013
    Publication date: May 15, 2014
    Applicant: ABB RESEARCH LTD
    Inventors: Vivek GOPALAKRISHNAN, Sasi KUMAR S.R., Bernhard DECK
  • Publication number: 20120191959
    Abstract: A method is disclosed for configuring an intelligent electronic device (IED) that includes enabling dynamic capability of the IED by a flexible data modeling technique to dynamically adapt a data model based on an application requirement using a configuration tool. A substation automation system is also disclosed which includes a local system equipment having a plurality of IEDs associated with the local system equipment and an IED configuration tool configured to interact with the firmware of each IED to configure the IED based on application requirements. The application configuration tool can include dynamic capability information of the IED to enable a flexible data model in the IED.
    Type: Application
    Filed: December 9, 2009
    Publication date: July 26, 2012
    Applicant: ABB RESEARCH LTD
    Inventors: Sasi Kumar, Vivek Gopalakrishnan, Tobias Gentzell, Ganesh Kulathu
  • Publication number: 20120173958
    Abstract: A method, a substation automation apparatus and an intelligent electronic device (IED) are disclosed which are, for example, not limited only to publishing data (data emanating) from the IED. An exemplary method includes assigning a unique identifier to one or more data fields, where the one or more data fields is associated with a short address attribute in the data emanating from the intelligent electronic device; and dynamically updating the identifier based on user specific configuration data by an IED application configuration tool. The IED can include a list of functions; (e.g., each function being represented as a logical node; and each logical node containing data objects); and a flexible addressing scheme for configuring the data objects and publishing data from the IED, but not only data emanating from IED.
    Type: Application
    Filed: December 2, 2011
    Publication date: July 5, 2012
    Applicant: ABB TECHNOLOGY LTD
    Inventors: Ganesh KULATHU, Uwe Klich, Sasi Kumar, Vivek Gopalakrishnan, Tobias Gentzell, Padmasri Krishnamurthy