Patents by Inventor Anssi Mäki

Anssi Mäki 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 arrangement in connection with photovoltaic power generator composed of series-connected photovoltaic modules
    Patent number: 9625502
    Abstract: A method and an arrangement are provided in connection with a photovoltaic power generator composed of series-connected photovoltaic modules. The method includes determining a maximum power point voltage (UMPP) and a maximum power point current (IMPP). The method also includes determining the ambient temperature (Tamb), calculating an estimated maximum power point voltage (Uest) by using maximum power point current (IMPP) and the determined ambient temperature (Tamb), comparing the estimated maximum power point voltage with the determined maximum power point (UMPP), and determining on the basis of the comparison whether the generator is operating under uniform conditions or in conditions with two maximum power points.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: April 18, 2017
    Assignee: ABB Oy
    Inventors: Anssi Mäki, Seppo Valkealahti