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:
May. 10, 2011
Filed:
Jan. 04, 2007
Stefan Steiner, Flensburg, DE;
Martin Von Mutius, Ascheffel, DE;
Stefan Steiner, Flensburg, DE;
Martin Von Mutius, Ascheffel, DE;
Repower Systems AG, Hamburg, DE;
Abstract
The invention relates to a method for operating a wind energy installation (), in which the wind energy installation () has a rotor (), at least one rotor blade () with an adjustable angle, a mechanical brake device () for braking the rotor (), an operational control device () and a safety system (). The invention also relates to a corresponding wind energy installation (). The method according to the invention is defined by the following method steps: braking of the rotor () by means of an angular adjustment () with an average angular adjustment rate of less than 8.5°/s of the at least one rotor blade () after a fault signal () occurs, braking of the rotor () by means of the mechanical brake device () as soon as the rotational speed of the rotor () exceeds a predefinable first rotational speed limit, and triggering of the safety system () as soon as the rotational speed of the rotor () exceeds a predefinable second rotational speed limit.