Patents by Inventor Yvonne Zwirchmayr

Yvonne Zwirchmayr 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 and device for recognizing faults in a photovoltaic system
    Patent number: 9553215
    Abstract: The invention relates to a method and a device for recognizing faults in a photovoltaic system (1). A first output voltage (U0, UMPP) of the system (1) and/or a first parameter derived from the output voltage (U0, UMPP) is determined at a first point in time in a first operating state of the photovoltaic system (1). At a second point in time in a second operating state comparable to the first operating state, a second output voltage (U0, UMPP) and/or a second parameter of the system (1) derived from the output voltage (U0, UMPP) is determined. Finally, a deviation between the first and the second output voltage (U0, UMPP) and/or between the first and the second parameter is identified and a fault notification is output if the deviation exceeds a predeterminable threshold.
    Type: Grant
    Filed: October 11, 2010
    Date of Patent: January 24, 2017
    Assignee: Fronius International GmbH
    Inventors: Michael Ammer, Thomas Muehlberger, Roland Proetsch, Yvonne Zwirchmayr
  • METHOD AND DEVICE FOR RECOGNIZING FAULTS IN A PHOTOVOLTAIC SYSTEM
    Publication number: 20120247542
    Abstract: The invention relates to a method and a device for recognizing faults in a photovoltaic system (1). A first output voltage (U0, UMPP) of the system (1) and/or a first parameter derived from the output voltage (U0, UMPP) is determined at a first point in time in a first operating state of the photovoltaic system (1). At a second point in time in a second operating state comparable to the first operating state, a second output voltage (U0, UMPP) and/or a second parameter of the system (1) derived from the output voltage (U0, UMPP) is determined. Finally, a deviation between the first and the second output voltage (U0, UMPP) and/or between the first and the second parameter is identified and a fault notification is output if the deviation exceeds a predeterminable threshold.
    Type: Application
    Filed: October 11, 2010
    Publication date: October 4, 2012
    Applicant: FRONIUS INTERNATIONAL GMBH
    Inventors: Michael Ammer, Thomas Muehlberger, Roland Proetsch, Yvonne Zwirchmayr