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Methods and apparatus for controlling current in an electrical machine
   
Document Number
US Patent 7417333
Issued Date
August 26, 2008
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Abstract
A method for determining electric currents for an electrical machine includes generating a first real power current demand signal and a first reactive power current demand signal. The method also includes determining at least one of a second real power current demand signal and a second reactive power current demand signal by prioritizing a second real power current demand signal over a second reactive power current demand signal. Alternatively, the method also includes determining at least one of a second real power current demand signal and a second reactive power current demand signal by prioritizing the second reactive power current demand signal over the second real power current demand signal. The method further includes comparing at least one of the first real power current demand signal and first reactive power current demand signal to at least one electrical machine current limit signal.
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Number of Claims:
20
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Owner
General Electric Company (Schenectady, NY)
Published
August 26, 2008
Application Number
11/555,987
Filed
November 2, 2006
US Classification
290/44   290/7 322/27 322/37
Int'l Classification
H02P   9/00   (20060101)   F03D   7/00   (20060101)  
Attorney/Law Firm
USPTO Field of Search
290/44   290/55   290/7   322/25   322/27   322/28   322/37  
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