Patents by Inventor Claes Bengtsson

Claes Bengtsson 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: 7616087
    Abstract: An installation for transmission of electric power via a high-voltage ac voltage line between two switchgear units located at a large distance from each other. For the transmission of the electric power, the ac voltage line includes at least one extruded cable with an inner electric conductor, an insulating layer of a solid material surrounding the conductor, and an outer screen layer located at ground potential. The installation also includes one or more inductors located along the extent of the cable between the switchgear units and integrated into the cable. The inductors are connected between the conductor of the cable and ground for reactive shunt compensation.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: November 10, 2009
    Assignee: ABB AB
    Inventors: Per Halvarsson, Claes Bengtsson, David Larsson, Johan Karlstrand
  • Patent number: 7245037
    Abstract: An electric network for generation and transmission of electric power, including a power generating part, a point of common connection for the power generating part, a transmission link, a load network, and a reactive power compensator. The transmission link is coupled between the point of common connection and a grid connection point at the load network. The reactive power compensator is coupled to transmission link. The power generating part includes at least one wind turbine with an electric generator of induction type, coupled to the point of common connection. The reactive power compensator includes a capacitor bank and in parallel coupling to the capacitor bank a controllable inductor having a magnetic core, a main winding for alternating current, and a DC-control winding for direct current. The DC-control winding for control of the magnetic flux is set up by the main winding via orthogonal magnetization of the core.
    Type: Grant
    Filed: September 13, 2002
    Date of Patent: July 17, 2007
    Assignee: ABB AB
    Inventors: Lennart Ă„ngquist, Per Halvarsson, Lars Liljestrand, Stefan Valdemarsson, Claes Bengtsson, Willie Wong
  • Publication number: 20060214643
    Abstract: An electric network for generation and transmission of electric power, including a power generating part, a point of common connection for the power generating part, a transmission link, a load network, and a reactive power compensator. The transmission link is coupled between the point of common connection and a grid connection point at the load network. The reactive power compensator is coupled to transmission link. The power generating part includes at least one wind turbine with an electric generator of induction type, coupled to the point of common connection. The reactive power compensator includes a capacitor bank and in parallel coupling to the capacitor bank a controllable inductor having a magnetic core, a main winding for alternating current, and a DC-control winding for direct current. The DC-control winding for control of the magnetic flux is set up by the main winding via orthogonal magnetization of the core.
    Type: Application
    Filed: September 13, 2002
    Publication date: September 28, 2006
    Applicant: ABB AB
    Inventors: Lennart Angquist, Per Hal Varsson, Lars Liljestrand, Stefan Valdemarsson, Claes Bengtsson, Willie Wong
  • Publication number: 20060096953
    Abstract: An installation for transmission of electric power via a high-voltage ac voltage line between two switchgear units located at a large distance from each other. For the transmission of the electric power, the ac voltage line includes at least one extruded cable with an inner electric conductor, an insulating layer of a solid material surrounding the conductor, and an outer screen layer located at ground potential. The installation also includes one or more inductors located along the extent of the cable between the switchgear units and integrated into the cable. The inductors are connected between the conductor of the cable and ground for reactive shunt compensation.
    Type: Application
    Filed: September 12, 2003
    Publication date: May 11, 2006
    Inventors: Per Halvarsson, Claes Bengtsson, David Larsson, Johan Karlstrand