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:
Jan. 06, 2015
Filed:
Apr. 04, 2014
Applicants:
Mario Vasak, Novi Marof, HR;
Vinko Lesic, Zupanja, HR;
Thomas Wolbank, Vienna, AT;
Nedjeljko Peric, Zagreb, HR;
Inventors:
Mario Vasak, Novi Marof, HR;
Vinko Lesic, Zupanja, HR;
Thomas Wolbank, Vienna, AT;
Nedjeljko Peric, Zagreb, HR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F03D 9/00 (2006.01); H02P 9/04 (2006.01); F03D 7/00 (2006.01); G01R 31/42 (2006.01); H02P 29/02 (2006.01); H02P 9/00 (2006.01); G01R 31/34 (2006.01);
U.S. Cl.
CPC ...
F03D 7/00 (2013.01); G01R 31/42 (2013.01); H02P 29/023 (2013.01); H02P 9/006 (2013.01); F03D 9/003 (2013.01); G01R 31/343 (2013.01); F05B 2270/107 (2013.01); F05B 2270/1095 (2013.01); F05B 2270/327 (2013.01); F05B 2270/335 (2013.01);
Abstract
A fault-tolerant control system and method for variable-speed variable-pitch wind turbines with an inverter-fed generator. When generator faults are detected, the generator torque and/or flux is limited to prevent propagation of the faults and possible failure and shutdown of the generator. The control system and method improves on two-loop control methods for variable-speed variable-pitch wind turbines and provides improved power delivery under fault conditions.