Patents by Inventor NICOLAS SOELLNER

NICOLAS SOELLNER 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: 10938213
    Abstract: A converter station includes two line-commutated converters for energy transmission through a bipolar high voltage direct current transmission link. The two converters are electrically connected in an anti-parallel circuit to the same pole of the high-voltage direct current transmission link. One of the converters is operated as a rectifier in an AC grid and the other converter is operated as an inverter in the AC grid. A station reactive power exchanged by the converter station with the AC grid is controlled by real power stipulations for converter real powers which are exchanged between the converters and the AC grid. A method for operating the converter station is also provided.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: March 2, 2021
    Assignee: Siemens Aktiengesellschaft
    Inventors: Johann Messner, Nicolas Soellner
  • Publication number: 20210036634
    Abstract: A converter station has two line-commutated converters for energy transmission via a bipolar high voltage direct current transmission line. In a first operating mode of the converter station the two converters are electrically connected in an anti-parallel circuit to the same pole of the high voltage direct current transmission link and one of the converters is operated as a rectifier and the other converter is operated as an inverter in an network. In a second operating mode the two converters are connected to different poles of the high voltage direct current transmission link and both converters are operated as either rectifiers or inverters in the AC network. In both operating modes a station active power exchanged between the converter station and the AC network is controlled by active power specifications for converter active powers which are exchanged between the converters and the AC network.
    Type: Application
    Filed: November 22, 2017
    Publication date: February 4, 2021
    Applicant: Siemens Aktiengesellschaft
    Inventors: Johann MESSNER, Nicolas SÖLLNER
  • Publication number: 20200389031
    Abstract: A converter station includes two line-commutated converters for energy transmission through a bipolar high voltage direct current transmission link. The two converters are electrically connected in an anti-parallel circuit to the same pole of the high-voltage direct current transmission link. One of the converters is operated as a rectifier in an AC grid and the other converter is operated as an inverter in the AC grid. A station reactive power exchanged by the converter station with the AC grid is controlled by real power stipulations for converter real powers which are exchanged between the converters and the AC grid. A method for operating the converter station is also provided.
    Type: Application
    Filed: November 22, 2017
    Publication date: December 10, 2020
    Inventors: JOHANN MESSNER, NICOLAS SOELLNER