Title :
A Novel Dual-Stator Hybrid Excited Synchronous Wind Generator
Author :
Xiping, Liu ; Heyun, Lin ; Chengfeng, Yang ; Fang Shuhua ; Jian, Guo
Author_Institution :
Southeast Univ., Nanjing
Abstract :
This paper presents a novel dual-stator hybrid excited synchronous wind generator (DSHESG). The structure characteristics are presented and no-load magnetic field is computed by 3-D finite element method. Static characteristics including magnetic flux density, EMF, inductances are analyzed. A closed-loop control system for field windings using PWM method is built on the basis of mathematical model of DSHESG. Thanks to the field windings the air-gap magnetic flux can be easily controlled, and the output voltage of DSHESG can be kept at a constant value with the speed or load varying. The dual-stator machine can increase output voltage effectively as well. Tests are performed on the prototype machines to validate analysis results, and an excellent agreement is obtained.
Keywords :
closed loop systems; finite element analysis; machine control; magnetic flux; synchronous generators; wind power; 3D finite element method; EMF; PWM method; air-gap magnetic flux; closed-loop control system; dual-stator hybrid excited synchronous wind generator; field windings; inductances; magnetic flux density; no-load magnetic field; static characteristics; Air gaps; Control system synthesis; Finite element methods; Hybrid power systems; Magnetic analysis; Magnetic fields; Magnetic flux density; Mathematical model; Pulse width modulation; Synchronous generators; Air-gap flux; Dual-stator; Hybrid excited; Static characteristic; finite element method;
Conference_Titel :
Power Electronics and Drive Systems, 2007. PEDS '07. 7th International Conference on
Conference_Location :
Bangkok
Print_ISBN :
978-1-4244-0645-6
Electronic_ISBN :
978-1-4244-0645-6
DOI :
10.1109/PEDS.2007.4487672
