Title :
The magneto motive force of a novel dual stator-winding induction generator
Author :
Huang, Wenxin ; Hu, Yuwen ; Bu, Feifei ; Shi, Kai
Author_Institution :
Nanjing Univ. of Aeronaut. & Astronaut., Nanjing, China
Abstract :
The magneto motive force (MMF) of a novel dual stator-winding induction generator (DWIG) for wind power application is analyzed in this paper. There are two sets of windings embedded in the stator slots. One is 3-phase control winding, and the other is 6-phase power winding. A static excitation converter (SEC) is connected to the control winding to provide the variable excitation power to the generator. The 6-phase power winding, feeding a 6-phase rectifier, is designed as two 3-phase star windings spatially shifted by 30° electrical to decrease the harmonic MMF. Based on the analysis on the harmonic current components of the two sets of stator windings, the harmonic MMF in this generator is investigated, and the relationship between the harmonic current and harmonic MMF is consequently disclosed. The harmonic MMF in a 18 kW DWIG prototype is calculated, and the correctness of harmonic MMF analysis is verified.
Keywords :
asynchronous generators; machine control; power convertors; power generation control; power system harmonics; rectifiers; stators; wind power plants; 3-phase control winding; 3-phase star winding; 6-phase power winding; 6-phase rectifier; DWIG; dual stator-winding induction generator; harmonic MMF; harmonic current component; magnetomotive force; power 18 kW; static excitation converter; wind power application; Harmonic analysis; Induction generators; Power system harmonics; Stator windings; Wind power generation; Windings; Dual stator-winding induction generator (DWIG); harmonic current; harmonic magnetoforce (MMF); static excitation converter (SEC); wind power generation;
Conference_Titel :
Energy Conversion Congress and Exposition (ECCE), 2010 IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
978-1-4244-5286-6
Electronic_ISBN :
978-1-4244-5287-3
DOI :
10.1109/ECCE.2010.5617708
