UM  > 科技學院  > 機電工程系
Design and analysis of a direct-drive wind power generator with ultra-high torque density
Linni Jian; Yujun Shi; Jin Wei; Yanchong Zheng
2015-05-07
Source PublicationJournal of Applied Physics
ISSN0021-8979
Volume117Issue:17
Abstract

In order to get rid of the nuisances caused by mechanical gearboxes, generators with low rated speed, which can be directly connected to wind turbines, are attracting increasing attention. The purpose of this paper is to propose a new direct-drive wind power generator (DWPG), which can offer ultra-high torque density. First, magnetic gear (MG) is integrated to achieve non-contact torque transmission and speed variation. Second, armature windings are engaged to achieve electromechanical energy conversion. Interior permanent magnet (PM) design on the inner rotor is adopted to boost the torquetransmission capability of the integrated MG.Nevertheless, due to lack of back iron on the stator, the proposed generator does not exhibit prominent salient feature, which usually exists in traditional interior PM (IPM) machines. This makes it with good controllability and high power factor as the surface-mounted permanent magnet machines. The performance is analyzed using finite element method.Investigation on the magnetic field harmonics demonstrates that the permanent-magnetic torqueoffered by the MG can work together with the electromagnetic torque offered by the armature windings to balance the driving torque captured by the wind turbine. This allows the proposed generator having the potential to offer even higher torquedensity than its integrated MG.

DOIhttps://doi.org/10.1063/1.4908021
URLView the original
Indexed BySCI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:000354984100060
PublisherAMER INST PHYSICS, 1305 WALT WHITMAN RD, STE 300, MELVILLE, NY 11747-4501 USA
Fulltext Access
Citation statistics
Document TypeJournal article
CollectionDEPARTMENT OF ELECTROMECHANICAL ENGINEERING
Corresponding AuthorLinni Jian
AffiliationDepartment of Electrical and Electronic Engineering, South University of Science and Technology of China, Shenzhen, China
Recommended Citation
GB/T 7714
Linni Jian,Yujun Shi,Jin Wei,et al. Design and analysis of a direct-drive wind power generator with ultra-high torque density[J]. Journal of Applied Physics,2015,117(17).
APA Linni Jian,Yujun Shi,Jin Wei,&Yanchong Zheng.(2015).Design and analysis of a direct-drive wind power generator with ultra-high torque density.Journal of Applied Physics,117(17).
MLA Linni Jian,et al."Design and analysis of a direct-drive wind power generator with ultra-high torque density".Journal of Applied Physics 117.17(2015).
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Linni Jian]'s Articles
[Yujun Shi]'s Articles
[Jin Wei]'s Articles
Baidu academic
Similar articles in Baidu academic
[Linni Jian]'s Articles
[Yujun Shi]'s Articles
[Jin Wei]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Linni Jian]'s Articles
[Yujun Shi]'s Articles
[Jin Wei]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.