NDLI: Design and analysis of an outer rotor permanent magnet alternator for low-speed wind turbine

Content Provider	IEEE Xplore Digital Library
Author	Arafat, Y. Murshed, M. Razzak, M.A.
Copyright Year	2015
Description	Author affiliation: Dept. of Electr. & Electron. Eng., Indep. Univ., Dhaka, Bangladesh (Arafat, Y.; Murshed, M.; Razzak, M.A.)
Abstract	The outer rotor permanent magnet alternator (PMA) is superior for small wind turbine system due to its robust, little maintenance and low cost configuration. In this research, the design and performance analysis of a radial flux outer rotor type PMA used for gearless, extremely low-speed, and small capacity wind turbine system has been discussed. The design has been simulated to analyze this PMA. The elementary configuration like material types, magnet types and additional electrical and mechanical parameters are studied, and the performances parameters of PMA are improved by changing these elementary electrical and mechanical parameters or some other related factors such as reducing the cogging effect. Cogging torque has been reduced by employing fractional slot per pole, width of slot opening, mounting of the magnets. Also the slot shape has been custom-made to increase the efficiency. The slot fill factor was improved by using different wire diameter used as winding coil. This improvement has been played a great role to reduce copper losses thereby improving the thermal condition of the slot. Finite element analysis (FEA) method was used to analyze this PMA in order to test the real time performance simulation with loss and cogging torque calculation. By taking all these considerations into account, higher efficiency from the outer rotor arrangement with minimum losses has been achieved.
Starting Page	1
Ending Page	7
File Size	513068
Page Count	7
File Format	PDF
ISBN	9781509001682
e-ISBN	9781509001699
DOI	10.1109/ICGET.2015.7315119
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-11
Publisher Place	Bangladesh
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Forging Magnetic flux Torque Low-speed wind turbine system Outer rotor PMA Rotors Finite elements analysis (FEA) Stators Permanent magnets Alternators Cogging effect
Content Type	Text
Resource Type	Article

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