ALEXANDRIA, Va., Feb. 3 -- United States Patent no. 12,540,599, issued on Feb. 3, was assigned to Nordex Energy SE & Co. KG (Hamburg, Germany) and Ingenieurbuero Hoffmann GmbH (Landsberg OT Peissen, Germany).
"Method for operating a wind turbine and wind turbine" was invented by Christian Wessels (Hamburg, Germany) and Nils Hoffmann (Halle/Saale, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "This disclosure is directed to a method for operating a wind turbine which includes a speed-variable drive system. The system includes an electrical machine and a pulsewidth modulation-controlled converter. The speed-variable drive system is connected to an electrical grid. In the event of a transient grid fault...