Direct control of air-gap flux in permanent-magnet machines

被引:37
|
作者
Hsu, JS [1 ]
机构
[1] Oak Ridge Natl Lab, Oak Ridge, TN 37831 USA
关键词
field weakening; field control; permanent-magnet (PM) machines; motors; generators; electric vehicle; drives;
D O I
10.1109/60.900493
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
A new field weakening and adjustment technology for PM machines by direct control of air-gap fluxes is introduced, This new technology requires no current decomposition by the inverter eliminating the need for a position sensor. Demagnetization, which normally occurs during field weakening, does not occur with this new method. The field-weakening ratio can reach 10:1 or higher. This technology is robust and particularly useful for, but not limited to, electric vehicle drives and PM generators.
引用
收藏
页码:361 / 365
页数:5
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