Eddy-current loss prediction in the rotor magnets of a permanent magnet synchronous generator with modular winding feeding a rectifier load

Huang, Yunkai; Dong, J.; Jin, Long; Zhu, Jianguo; Guo, Youguang

Eddy-current loss prediction in the rotor magnets of a permanent magnet synchronous generator with modular winding feeding a rectifier load

Journal article (2011)

Authors

Yunkai Huang Southeast University

J. Dong Southeast University

Long Jin Southeast University

Jianguo Zhu University of Technology Sydney

Youguang Guo University of Technology Sydney

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External organisation

Permanent magnet generators Rectifiers Magnetic losses

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Published Date

2011-10

Language

English

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Abstract

In a permanent magnet synchronous generator (PMSG) with modular winding, significant eddy current may be induced in the rotor magnets due to asynchronous rotating stator magneto-motive forces (MMFs), and a rectifier load may signify the situation further. The eddy-current loss prediction in the rotor magnets of a PMSG with modular winding feeding a rectifier load is described. An analytical method considering the stator current harmonics and stator MMF spatial harmonics and a time-stepping, coupled-circuit, 2-D finite-element method (FEM) are adopted. The predicted losses obtained from these two methods are compared and investigated.

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