Patents by Inventor Andreas Umland

Andreas Umland 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).

  • Levelling partial powers flowing via the individual phases of a multi-phase AC grid
    Patent number: 9270117
    Abstract: For levelling the partial powers which flow at a grid connection point between a multi-phase AC power grid having a plurality of phase conductors and a unit for feeding electric energy into the AC power grid having a multi-phase inverter as well as electric consumer loads connected to the AC power grid, via the individual phase conductors, differences between the partial powers flowing via the individual phase conductors are determined and are reduced by feeding different partial powers with the inverter into the individual phase conductors.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: February 23, 2016
    Assignee: SMA Solar Technology AG
    Inventor: Andreas Umland
  • Levelling Partial Powers Flowing via the Individual Phases of a Multi-Phase AC Grid
    Publication number: 20120280566
    Abstract: For levelling the partial powers which flow at a grid connection point between a multi-phase AC power grid having a plurality of phase conductors and a unit for feeding electric energy into the AC power grid having a multi-phase inverter as well as electric consumer loads connected to the AC power grid, via the individual phase conductors, differences between the partial powers flowing via the individual phase conductors are determined and are reduced by feeding different partial powers with the inverter into the individual phase conductors.
    Type: Application
    Filed: July 16, 2012
    Publication date: November 8, 2012
    Applicant: SMA Solar Technology AG
    Inventor: Andreas Umland