Patents by Inventor Gerd Hackenberg

Gerd Hackenberg 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: 8749934
    Abstract: In a photovoltaic system including a plurality of strings, each includes a plurality of photovoltaic modules exclusively connected in series, bus lines to which the strings are connected in parallel, and a converter for feeding electric energy from the bus lines into a power grid. A system voltage drop between the bus lines can be adjusted by a controller of the converter, and a current sensor is provided for each string that at least determines whether a reverse current flows to the string and reports to the controller of the converter whether a reverse current flows to the string, and the controller of the converter reduces the system voltage present between the bus lines to stop the reverse current.
    Type: Grant
    Filed: February 6, 2012
    Date of Patent: June 10, 2014
    Assignee: SMA Solar Technology AG
    Inventor: Gerd Hackenberg
  • Publication number: 20120139347
    Abstract: In a photovoltaic system including a plurality of strings, each includes a plurality of photovoltaic modules exclusively connected in series, bus lines to which the strings are connected in parallel, and a converter for feeding electric energy from the bus lines into a power grid. A system voltage drop between the bus lines can be adjusted by a controller of the converter, and a current sensor is provided for each string that at least determines whether a reverse current flows to the string and reports to the controller of the converter whether a reverse current flows to the string, and the controller of the converter reduces the system voltage present between the bus lines to stop the reverse current.
    Type: Application
    Filed: February 6, 2012
    Publication date: June 7, 2012
    Applicant: SMA Solar Technology AG
    Inventor: Gerd Hackenberg