DocumentCode :
2402908
Title :
Power converter for wind turbine application
Author :
Hess, Herbert L. ; Abdul Melek, Noor A. ; Muljadi, Eduard
Author_Institution :
Idaho Univ., Moscow, ID, USA
Volume :
2
fYear :
2000
fDate :
2000
Firstpage :
1275
Abstract :
Variable speed wind turbines are known to provide more effective power capture than their fixed-speed counterparts. To generate electrical power over a wide range of speeds, induction generators have been shown to be superior in many ways to DC generators: efficiency, maintainability, power density, etc. Unfortunately, loads are typically fixed-frequency. A power electronic converter enables efficient conversion of the variable frequency output of an induction generator, driven by a variable speed wind turbine, to a fixed frequency appropriate for the grid or a load. The conventional converter topology for this task is the well-known DC link converter. The power converter proposed in this investigation differs from the conventional DC link converter in three important ways. (1) It has only one bridge, composed of active devices. Consequently, the converter has only half the switching devices of the conventional DC link converter. Compared to many DC link converters, it may have half the controller hardware as well. (2) It has a unique modulation algorithm. (3) It has a simple filter to capture energy produced by the system and to transfer that energy to the grid or a load
Keywords :
asynchronous generators; bridge circuits; filters; modulation; power convertors; variable speed gear; wind turbines; active devices; bridge circuit; energy transfer; filter; fixed-frequency loads; induction generators; modulation algorithm; power capture; power converter; switching devices; variable frequency output; variable speed wind turbines; Bridges; Circuit topology; DC generators; Frequency conversion; Induction generators; Power electronics; Power generation; Switching converters; Wind energy generation; Wind turbines;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Power Engineering Society Summer Meeting, 2000. IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-6420-1
Type :
conf
DOI :
10.1109/PESS.2000.867570
Filename :
867570
Link To Document :
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