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Large transient detection for electric power generation
   
Document Number
US Patent 7554214
Issued Date
June 30, 2009
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Abstract
An electric power generation system is disclosed that provides an AC electric power output with the target waveform period. A sequence of values is established that each represent electric current of the output for a corresponding one of a number of sequential time segments. A processor executes operating logic to process the values for each respective one of the time segments that includes: determining a difference between a first one of the values and the second one of the values for the respective one of the time segments, selecting the second one of the values from the subset of values corresponding to a subset of the time segments, and performing a comparison of the difference to a threshold. Based on this comparison, a transient condition can be identified and/or control of the system can otherwise be facilitated.
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Number of Claims:
20
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Published
June 30, 2009
Application Number
11/789,913
Filed
April 26, 2007
US Classification
290/40C  
Int'l Classification
H02P   9/04   (20060101)  
Parent Case
CROSS-REFERENCE TO RELATED APPLICATIONS The present application claims the benefit of U.S. Provisional Patent Application No. 60/877,970 filed on 29 Dec. 2006 which is hereby incorporated by reference in its entirety.
USPTO Field of Search
290/1A   290/4R   290/40B   290/40C   290/40F   180/65.2   180/65.4  
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