Patents by Inventor Thomas Ortmann

Thomas Ortmann 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).

  • Tracking method and tracking device for a voltage converter for a photovoltaic system
    Patent number: 9444365
    Abstract: The disclosure relates to a tracking method for a voltage transformer, in particular an inverter, of a photovoltaic system. In the method, an intermediate circuit voltage is repeatedly decreased or increased in one direction to a lower or higher voltage by voltage steps of a specified magnitude. The method is characterized in that an average rate of change of the intermediate circuit voltage in a partial time period between two voltage steps is limited by a maximum average rate of change, the maximum average rate of change being defined according to the magnitude of the intermediate circuit voltage. The disclosure further relates to a tracking device designed to perform the tracking method and to an inverter equipped with the tracking device.
    Type: Grant
    Filed: April 24, 2014
    Date of Patent: September 13, 2016
    Assignee: SMA SOLAR TECHNOLOGY AG
    Inventors: Martin Bock, Tobias Mueller, Thomas Ortmann, Alexander Unru
  • TRACKING METHOD AND TRACKING DEVICE FOR A VOLTAGE CONVERTER FOR A PHOTOVOLTAIC SYSTEM
    Publication number: 20140233263
    Abstract: The disclosure relates to a tracking method for a voltage transformer, in particular an inverter, of a photovoltaic system. In the method, an intermediate circuit voltage is repeatedly decreased or increased in one direction to a lower or higher voltage by voltage steps of a specified magnitude. The method is characterized in that an average rate of change of the intermediate circuit voltage in a partial time period between two voltage steps is limited by a maximum average rate of change, the maximum average rate of change being defined according to the magnitude of the intermediate circuit voltage. The disclosure further relates to a tracking device designed to perform the tracking method and to an inverter equipped with the tracking device.
    Type: Application
    Filed: April 24, 2014
    Publication date: August 21, 2014
    Inventors: Martin Bock, Tobias Mueller, Thomas Ortmann, Alexander Unru