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:
Sep. 28, 2010
Filed:
Jan. 23, 2009
Xiaoming Yuan, Shanghai, CN;
Allen Michael Ritter, Roanoke, VA (US);
Haiqing Weng, Shanghai, CN;
Robert William Delmerico, Clifton Park, NY (US);
Xiaoming Yuan, Shanghai, CN;
Allen Michael Ritter, Roanoke, VA (US);
Haiqing Weng, Shanghai, CN;
Robert William Delmerico, Clifton Park, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A system for controlling a grid connected power generating system is provided. The system includes a wind turbine, a converter, a first controller and a second controller. The wind turbine supplies electrical power to a power grid and the converter couples the wind turbine to the power grid. The first controller calculates voltage commands to emulate a phasor back electromotive force behind an inductance. The controller further generates converter switching commands from the voltage commands. The voltage commands include a voltage magnitude reference and an internal frequency reference calculated from a power imbalance between an active power reference and the electrical power. The second controller is used to limit a converter current.