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Design and Electromagnetic Field Characteristic Analysis of 1.5 kW Small Scale Wind Power Generator for Substitution of Nd-Fe-B to Ferrite Permanent Magnet

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5 Author(s)
Seok-Myeong Jang ; Dept. of Electrical Engineering,, Chungnam Nat'l Univ.,, Daejeon,, Korea ; Ho-Jun Seo ; Yu-Seop Park ; Hyung-Il Park
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With the main objective of substituting a generator without a conventional Nd-Fe-B permanent magnet (PM), this paper describes the application of ferrite PM to a 1.5 (kW) wind power generator and proposes a newly designed generator with similar performance and machine size as the equivalent conventional Nd-Fe-B PM generator. The conventional generator with Nd-Fe-B PM was slotless in order to eliminate the cogging torque resulting from the PM and the tooth-slot structure. The magnetic structure of the proposed ferrite generator was newly designed using an analytical approach to obtain satisfactory performance. All analysis results were validated through experiments with a manufactured model, confirming the possibility of substitution of Nd-Fe-B magnet with ferrite magnet in such generators.

Published in:

IEEE Transactions on Magnetics  (Volume:48 ,  Issue: 11 )