Patents by Inventor Sami Pettersson

Sami Pettersson 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 ARRANGEMENT FOR ESTIMATING ANGULAR FREQUENCY
    Publication number: 20110241652
    Abstract: An exemplary method and arrangement for estimating the frequency and the positive sequence of a fundamental component of a measured three-phase voltage are disclosed (???).
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Applicant: ABB Research Ltd
    Inventors: Gerardo Escobar, Antonio Coccia, Leonardo-Augusto Serpa, Sami Pettersson, Yales De-Novaes
  • CONTROL METHOD FOR SINGLE-PHASE GRID-CONNECTED LCL INVERTER
    Publication number: 20110221420
    Abstract: A method of controlling the grid-side current of a single-phase grid-connected converter having an LCL filter connected between the output of the converter and the grid. The method includes measuring a grid voltage (vS) and at least one signal in a group of signals consisting of a grid-side current (i0), a converter-side current (i1) and a capacitor voltage (vC0).
    Type: Application
    Filed: February 18, 2011
    Publication date: September 15, 2011
    Applicant: ABB Research Ltd.
    Inventors: Antonio COCCIA, Gerardo Escobar, Leonardo-Augusto Serpa, Mikko Paakkinen, Sami Pettersson