Design and finite-element analysis of an outer-rotor permanent-magnet generator for directly coupled wind turbines

Author

Chen, JianYi ; Nayar, Chemmangot V. ; Xu, Longya

Author_Institution

Center for Renewable Energy Syst. Technol., Curtin Univ. of Technol., Perth, WA, Australia

Volume

36

Issue

5

fYear

2000

fDate

9/1/2000 12:00:00 AM

Firstpage

3802

Lastpage

3809

Abstract

This paper presents the design and finite-element analysis of a permanent-magnet generator using neodymium-iron-boron magnets for directly coupled wind turbines. For the sake of small size and light weight with extra low speed for direct coupling, the outer rotor structure is used. The simple magnetic equivalent circuit approach is used for initial design iteration, and the finite-element method is applied to analyze the detailed characteristics. Comprehensive experimental tests were conducted to verify the theoretical predictions. Agreement between the theoretical work and testing results was good

Keywords

finite element analysis; magnetic circuits; magnetic flux; permanent magnet generators; wind turbines; critical design constraints; directly coupled wind turbines; finite-element analysis; flux distribution; generator design; initial design iteration; leakage flux permeance; magnetic equivalent circuit approach; outer-rotor permanent-magnet generator; power capability; Circuit testing; Coupling circuits; Finite element methods; Iron; Magnetic analysis; Optical coupling; Permanent magnet motors; Rotors; Wind energy generation; Wind turbines;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/20.908378

Filename

908378