The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 16, 2010
Filed:
Aug. 08, 2007
Applicants:
Wolfgang Kabatzke, Geesthacht, DE;
Mark Jurkat, Norderstedt, DE;
Ulrich Harms, Hamburg, DE;
Inventors:
Assignee:
Nordex Energy GmbH, Norderstedt, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for operating a wind energy plant with a rotor blade control, a torque control and a control unit. A power limited mode of operation presets a desired value for the fed power, which is smaller than the rated value for the plant. On a threshold rotational speed, the torque is lowered through the torque control such that the preset desired value for the power is not exceeded. The threshold rotational speed, depending on the preset desired value for the moment (M), is set to a value smaller than the rated value for the rotational speed.