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:
Apr. 30, 2013
Filed:
May. 27, 2010
Haihui LU, Haihui, CN;
Lixiang Wei, Whitefish Bay, WI (US);
Richard A. Lukaszewski, New Berlin, WI (US);
Russel J. Kerkman, Milwaukee, WI (US);
Zhenhuan Yuan, Shanghai, CN;
Haihui Lu, Haihui, CN;
Lixiang Wei, Whitefish Bay, WI (US);
Richard A. Lukaszewski, New Berlin, WI (US);
Russel J. Kerkman, Milwaukee, WI (US);
Zhenhuan Yuan, Shanghai, CN;
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
The present techniques include methods and systems for operating a wind power system to maintain a lifespan of the rotor side converter. In some embodiments, the current of the rotor side converter may be minimized to reduce the stress and/or junction temperature variation in the switching transistors and bond wires of the converter. More specifically, embodiments involve using a minimal current in the rotor side converter based on the rotor side and grid side reactive powers. If the grid side reactive power is greater than a maximum grid side reactive power, the grid side reactive power may be reduced. Further, if the total reactive power does not meet the grid reactive power requirements, the minimal current in the rotor side converter may be adjusted such that the system may sufficiently power the grid.