CLC number: TM351
On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2016-07-13
Cited: 0
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He Hao, Wei-zhong Fei, Dong-min Miao, Meng-jia Jin, Jian-xin Shen. Torque characteristics in a large permanent magnet synchronous generator with stator radial ventilating air ducts[J]. Frontiers of Information Technology & Electronic Engineering, 2016, 17(8): 814-824.
@article{title="Torque characteristics in a large permanent magnet synchronous generator with stator radial ventilating air ducts",
author="He Hao, Wei-zhong Fei, Dong-min Miao, Meng-jia Jin, Jian-xin Shen",
journal="Frontiers of Information Technology & Electronic Engineering",
volume="17",
number="8",
pages="814-824",
year="2016",
publisher="Zhejiang University Press & Springer",
doi="10.1631/FITEE.1500238"
}
%0 Journal Article
%T Torque characteristics in a large permanent magnet synchronous generator with stator radial ventilating air ducts
%A He Hao
%A Wei-zhong Fei
%A Dong-min Miao
%A Meng-jia Jin
%A Jian-xin Shen
%J Frontiers of Information Technology & Electronic Engineering
%V 17
%N 8
%P 814-824
%@ 2095-9184
%D 2016
%I Zhejiang University Press & Springer
%DOI 10.1631/FITEE.1500238
TY - JOUR
T1 - Torque characteristics in a large permanent magnet synchronous generator with stator radial ventilating air ducts
A1 - He Hao
A1 - Wei-zhong Fei
A1 - Dong-min Miao
A1 - Meng-jia Jin
A1 - Jian-xin Shen
J0 - Frontiers of Information Technology & Electronic Engineering
VL - 17
IS - 8
SP - 814
EP - 824
%@ 2095-9184
Y1 - 2016
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/FITEE.1500238
Abstract: In this study, we investigated the torque characteristics of large low-speed direct-drive permanent magnet synchronous generators with stator radial ventilating air ducts for offshore wind power applications. magnet shape optimization was used first to improve the torque characteristics using two-dimensional finite element analysis (FEA) in a permanent magnet synchronous generator with a common stator. The rotor step skewing technique was then employed to suppress the impacts of mechanical tolerances and defects, which further improved the torque quality of the machine. Comprehensive three-dimensional FEA was used to evaluate accurately the overall effects of stator radial ventilating air ducts and rotor step skewing on torque features. The influences of the radial ventilating ducts in the stator on torque characteristics, such as torque pulsation and average torque in the machine with and without rotor step skewing techniques, were comprehensively investigated using three-dimensional FEA. The results showed that stator radial ventilating air ducts could not only reduce the average torque but also increase the torque ripple in the machine. Furthermore, the torque ripple of the machine under certain load conditions may even be increased by rotor step skewing despite a reduction in cogging torque.
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