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Analysis and comparison for rotor eddy current losses of permanent magnet synchronous generator according to dc and ac load conditions

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4 Author(s)
Seok-Myeong Jang ; Department of Electrical Engineering, Chungnam National University, 220 Gung-dong, Yuseong-gu, Daejeon 305-764, Korea ; Kim, Hyun-Kyu ; Jang-Young Choi ; Kyoung-Jin Ko

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This paper presents an analytical procedure for the calculation of the eddy current losses of permanent magnet synchronous generator (PMSG). The dc and ac loading effects on the eddy current is examined through the suggested analytical procedure that considers the radial and tangential flux density waveform through a phase current harmonic analysis. The corresponding test results are also presented to quantify and compare those loading effects on the eddy current. The results verified the suggested analytical procedures and show that the rotor eddy current losses for PMSG with the dc loads turned out to be more significant than those with the ac loads.

Published in:

Journal of Applied Physics  (Volume:105 ,  Issue: 7 )