Patents by Inventor Erik Kolby-Nielsen

Erik Kolby-Nielsen 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).

  • Wind mill power flow control with dump load and power converter
    Patent number: 8436490
    Abstract: A wind mill apparatus for generating electric power to a grid point of an electric network. The apparatus includes a wind rotor, an electric generator operatively connected to the wind rotor, and an electric multiphase ac link operatively connecting the generator to the grid point. The ac link includes a first current path including a switchgear, a second current path including a dc link including a first converter operatively connected to the generator, a second converter operatively connected to the grid point, and a capacitor operatively connected between the conductors of the dc link. The ac link further includes a connectable multiphase dump load for blocking during a fault condition on the network the reactive power flow in the ac link, yet providing a reduced transfer of active power.
    Type: Grant
    Filed: August 30, 2006
    Date of Patent: May 7, 2013
    Assignee: ABB Research Ltd.
    Inventors: Lars Gertmar, Hans Christian Christensen, Erik Kolby Nielsen, Jouko Niiranen, Stefan Thorburn-Johansson, Leif-Erik Wraee
  • Wind mill power flow control with dump load and power converter
    Publication number: 20100292852
    Abstract: A wind mill apparatus for generating electric power to a grid point of an electric network. The apparatus includes a wind rotor, an electric generator operatively connected to the wind rotor, and an electric multiphase ac link operatively connecting the generator to the grid point. The ac link includes a first current path including a switchgear, a second current path including a dc link including a first converter operatively connected to the generator, a second converter operatively connected to the grid point, and a capacitor operatively connected between the conductors of the dc link. The ac link further includes a connectable multiphase dump load for blocking during a fault condition on the network the reactive power flow in the ac link, yet providing a reduced transfer of active power.
    Type: Application
    Filed: August 30, 2006
    Publication date: November 18, 2010
    Inventors: Lars Gertmar, Hans Christian Christensen, Erik Kolby Nielsen, Jouko Niiranen, Stefan Thorburn-Johansson, Leif-Erik Wraae
  • Electric Power Flow Control
    Publication number: 20090171509
    Abstract: A farm including a plurality of electric power generation units connected to a grid point of a power network. The power generation units are organized in a plurality of upstream branches. Each upstream branch is separable from an adjacent downstream branch by an interrupter.
    Type: Application
    Filed: December 27, 2004
    Publication date: July 2, 2009
    Applicant: ABB RESEARCH LTD.
    Inventors: Sture Lindahl, Juhani Mantere, Lars Gertmar, Hans Christian Christensen, Erik Kolby-Nielsen, Leif-Erik Wraae