Patents by Inventor Pinwan Thiwanka Bandara Wijekoon

Pinwan Thiwanka Bandara Wijekoon 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).

  • Load tap changer
    Patent number: 9557754
    Abstract: A method of switching taps of an on-load tap changer includes providing a main finger, a first side finger including a first solid state switch and a second side finger including a second solid state switch. The main finger, the first side finger and the second side finger are utilized to provide a connection between the taps and a power terminal of the on-load tap changer. The method also includes triggering the on-load tap changer to shift the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received and utilizing the first solid state switch and the second solid state switch to commutate a current during the tap change operation.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: January 31, 2017
    Assignee: General Electric Company
    Inventors: Ara Panosyan, Eva-Maria Baerthlein, Simon Herbert Schramm, Stefan Schroeder, Rohit Kumar Gupta, Pinwan Thiwanka Bandara Wijekoon, Malcolm Graham Smith, Jr.
  • LOAD TAP CHANGER
    Publication number: 20150301538
    Abstract: A method of switching taps of an on-load tap changer includes providing a main finger, a first side finger including a first solid state switch and a second side finger including a second solid state switch. The main finger, the first side finger and the second side finger are utilized to provide a connection between the taps and a power terminal of the on-load tap changer. The method also includes triggering the on-load tap changer to shift the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received and utilizing the first solid state switch and the second solid state switch to commutate a current during the tap change operation.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ara Panosyan, Eva-Maria Baerthlein, Simon Herbert Schramm, Stefan Schroeder, Rohit Kumar Gupta, Pinwan Thiwanka Bandara Wijekoon, Malcolm Graham Smith, Jr.
  • System and method for controlling power in a distribution system
    Patent number: 9042129
    Abstract: An integrated power quality control system includes a transformer with a primary winding, a secondary winding and a compensation winding wound on a magnetic core. A power electronic converter in the system provides a reference voltage to the compensation winding for injecting a series voltage in the secondary winding of the transformer. A controller is utilized to generate a reference control voltage for the power electronic converter based on a power quality control requirement.
    Type: Grant
    Filed: November 15, 2012
    Date of Patent: May 26, 2015
    Assignee: General Electric Company
    Inventors: Pinwan Thiwanka Bandara Wijekoon, Ara Panosyan, Manoj Ramprasad Shah
  • POWER QUALITY CONTROL
    Publication number: 20140133185
    Abstract: An integrated power quality control system includes a transformer with a primary winding, a secondary winding and a compensation winding wound on a magnetic core. A power electronic converter in the system provides a reference voltage to the compensation winding for injecting a series voltage in the secondary winding of the transformer. A controller is utilized to generate the reference voltage for the power electronic converter based on a power quality control requirement.
    Type: Application
    Filed: November 15, 2012
    Publication date: May 15, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Pinwan Thiwanka Bandara Wijekoon, Ara Panosyan, Manoj Ramprasad Shah