INFLUENCE ON ROTOR EDDY-CURRENT LOSS IN HIGH-SPEED PM BLDC MOTORS

机译：高速PM BLDC电动机转子涡流损耗的影响

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Rotor eddy-current loss appears significant in high-speed PM BLDC motors. It is mainly caused by three factors, viz., armature mmf time harmonics, armature mmf space harmonics, and airgap permeance variation due to slot openings. The latter two factors are determined by motor design. Particularly, they are related to the stator structure and the slot opening width, which will be investigated in this paper. Moreover, in order to improve the mechanical strength, the rotor is usually protected with a non-magnetic retaining sleeve, which also influences the rotor eddy-current loss, hence, will be inspected as well. Finally, a conductive shield between the retaining sleeve and magnets is proposed to reduce the rotor loss.

机译：转子涡流损耗在高速PM BLDC电动机中显得显着。它主要是由三个因素，viz引起的，电枢MMF时间谐波，电枢MMF空间谐波和气球由于插槽开口而导致的渗透变化。后两种因素由电机设计决定。特别地，它们与定子结构和槽开口宽度有关，这将在本文中研究。此外，为了提高机械强度，转子通常用非磁性保持套管保护，这也影响转子涡流损失，因此也将被检查。最后，提出了保持套筒和磁体之间的导电屏蔽以减小转子损耗。

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《International Universities Power Engineering Conference》|2006年||共5页
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F. Z. Zhou; J. X. Shen; W. Z. Fei;
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INFLUENCE ON ROTOR EDDY-CURRENT LOSS IN HIGH-SPEED PM BLDC MOTORS

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