Patents by Inventor Moritz Welker

Moritz Welker 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 for three-phase supply into an alternating voltage network, and three-phase inverter
    Patent number: 11855459
    Abstract: A method for three-phase infeed of electrical power from a DC source into a three-phase AC grid by means of an inverter includes measuring phase-specific grid voltages of the three-phase AC grid, and determining a grid frequency from the measured phase-specific grid voltages. The method also includes generating phase-specific voltage reference values from the phase-specifically measured grid voltages and the determined grid frequency, and generating phase-specific target current values using phase-specific predetermined target current amplitude values, the phase-specific voltage reference values and respective grid voltage amplitudes.
    Type: Grant
    Filed: September 13, 2021
    Date of Patent: December 26, 2023
    Assignee: SMA Solar Technology AG
    Inventors: Alexander Unru, Moritz Welker, Neidhardt Bechtel, Sybille Pape
  • METHOD FOR THREE-PHASE SUPPLY INTO AN ALTERNATING VOLTAGE NETWORK, AND THREE-PHASE INVERTER
    Publication number: 20210408793
    Abstract: A method for three-phase infeed of electrical power from a DC source into a three-phase AC grid by means of an inverter includes measuring phase-specific grid voltages of the three-phase AC grid, and determining a grid frequency from the measured phase-specific grid voltages. The method also includes generating phase-specific voltage reference values from the phase-specifically measured grid voltages and the determined grid frequency, and generating phase-specific target current values using phase-specific predetermined target current amplitude values, the phase-specific voltage reference values and respective grid voltage amplitudes.
    Type: Application
    Filed: September 13, 2021
    Publication date: December 30, 2021
    Inventors: Alexander Unru, Moritz Welker, Neidhardt Bechtel, Sybille Pape