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A salient‐pole synchronous generator with permanent magnets between the field poles
Author(s) -
Matsui Yasuhiro,
Hayamizu Takahito,
Shima Kazuo,
Fukami Tadashi,
Hanaoka Ryoichi,
Takata Shinzo
Publication year - 2011
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.21132
Subject(s) - permanent magnet synchronous generator , magnet , pole piece , finite element method , saturation (graph theory) , electrical engineering , magnetic field , generator (circuit theory) , salient , engineering , voltage , control theory (sociology) , physics , mechanical engineering , power (physics) , computer science , structural engineering , mathematics , control (management) , combinatorics , quantum mechanics , artificial intelligence
In this paper, a new salient‐pole synchronous generator (SG) termed the PMa‐SG is presented. In the PMa‐SG, permanent magnets (PMs) are placed between the pole shoes to reduce the magnetic saturation in the field poles. By using finite element analysis (FEA), the internal magnetic fields and basic characteristics of a 2.8‐MVA PMa‐SG are compared with those of a conventional SG of the same size, and the reduction effect of the magnetic saturation of the PMs is examined. The FEA simulations are also validated by experiments on a 2.0‐kVA prototype machine. The PMs placed between the pole shoes reduce the magnetic saturation in the pole bodies and pole tips and effectively increase the terminal voltage and output power. © 2010 Wiley Periodicals, Inc. Electr Eng Jpn, 174(4): 58–67, 2011; Published online in Wiley Online Library ( wileyonlinelibrary.com ). DOI 10.1002/eej.21132