Patents by Inventor Farzad Rajaei Salmasi

Farzad Rajaei Salmasi 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).

  • Method and apparatus for estimated inductance and current feedback control of a grid-connected inverter with nonlinear inductor
    Patent number: 9887642
    Abstract: An inverter output current passes from an inverter phase output, through a non-linear inverter side inductor, and into a line that connects through a grid side inductor to a grid phase. An inductance of the inverter side non-linear inductor is estimated, a current passing through the grid side inductor is estimated, and a current through the inverter side inductor is measured. An inverter feeding the inverter output is controlled using a weighted average of the estimated current through the grid side inductor and the inverter side inductor current measurement, applying a weighting using the estimated inductance.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: February 6, 2018
    Inventors: Hossein Safamehr, Tooraj Abbasian Najafabadi, Farzad Rajaei Salmasi
  • METHOD AND APPARATUS FOR ESTIMATED INDUCTANCE AND CURRENT FEEDBACK CONTROL OF A GRID-CONNECTED INVERTER WITH NONLINEAR INDUCTOR
    Publication number: 20170237364
    Abstract: An inverter output current passes from an inverter phase output, through a non-linear inverter side inductor, and into a line that connects through a grid side inductor to a grid phase. An inductance of the inverter side non-linear inductor is estimated, a current passing through the grid side inductor is estimated, and a current through the inverter side inductor is measured. An inverter feeding the inverter output is controlled using a weighted average of the estimated current through the grid side inductor and the inverter side inductor current measurement, applying a weighting using the estimated inductance.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventors: Hossein Safamehr, Tooraj Abbasian Najafabadi, Farzad Rajaei Salmasi