Patents by Inventor Shetul R. Patel

Shetul R. Patel 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: 9240706
    Abstract: Among other things, one or more techniques and/or systems are provided for synchronizing one or more direct current (DC) to alternating current (AC) power sources (e.g., a DC power source coupled to an inverter) for restoration of power to a load. That is, responsive to a grid fault of a grid used to supply power to a load over a common bus, the common bus is isolated from the grid and the load. One or more DC to AC power sources are synchronized through synchronization circuits (e.g., voltage, phase, and/or frequency synchronization) until a total power supply provided by respective synchronized DC to AC power sources is greater than or equal to a target power used to supply the load. Once the target power is achieved, a load circuit breaker is closed so that respective synchronized DC to AC power sources provide power to the load over the common bus.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: January 19, 2016
    Assignee: ABB Technology AG
    Inventors: Shetul R. Patel, Marc Lambert, Francois-Pierre Pepin, Philippe Lautier, Kurt Rothermann, Armando Luigi Nold
  • Publication number: 20140252863
    Abstract: Among other things, one or more techniques and/or systems are provided for synchronizing one or more direct current (DC) to alternating current (AC) power sources (e.g., a DC power source coupled to an inverter) for restoration of power to a load. That is, responsive to a grid fault of a grid used to supply power to a load over a common bus, the common bus is isolated from the grid and the load. One or more DC to AC power sources are synchronized through synchronization circuits (e.g., voltage, phase, and/or frequency synchronization) until a total power supply provided by respective synchronized DC to AC power sources is greater than or equal to a target power used to supply the load. Once the target power is achieved, a load circuit breaker is closed so that respective synchronized DC to AC power sources provide power to the load over the common bus.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: ABB Technology AG
    Inventors: Shetul R. Patel, Marc Lambert, Francois-Pierre Pepin, Philippe Lautier, Kurt Rothermann, Armando Luigi Nold