Estimation of Assist Effects by Additional Permanent Magnets in Salient-Pole Synchronous Generators

被引：24

作者：

Yamazaki, Katsumi ^{[1
]}

Nishioka, Kazuyoshi ^{[1
]}

Shima, Kazuo ^{[2
]}

Fukami, Tadashi ^{[2
]}

Shirai, Keisuke ^{[2
]}

机构：

[1] Chiba Inst Technol, Narashino, Chiba 2750016, Japan

[2] Kanazawa Inst Techinol, Nonoichi, Ishikawa 9218501, Japan

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2012年 / 59卷 / 06期

关键词：

Finite-element methods; machine windings; magnetic cores; magnetic field; magnetic losses; nonlinear equations; permanent magnets; synchronous generators; INTERIOR;

D O I：

10.1109/TIE.2011.2141104

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The characteristic improvements of salient-pole synchronous generators by inserting additional permanent magnets are investigated from both results of finite-element analyses and experiments. First, the assist effects of the magnets in a mega-voltampere-class generator are analyzed by the finite-element method. It is clarified that the additional permanent magnets have the effects of reducing magnetic saturation at the rotor-pole bodies, as well as the effects of increasing the direct flux linkage of armature windings. It is also clarified that the output of the generator can be increased by more than 20% by inserting the magnets without any increase in total machine size and decrease in efficiency. Finally, the characteristic improvements are validated by the experiment of a small prototype generator. The experimental and calculated results are found to be in good agreement.

引用

页码：2515 / 2523

页数：9

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