摘要
三相异步电动机定、转子绕组被气隙中旋转磁场切割时,绕组中感应电势E1、E2的相位关系,取决于定、转子绕组空间的相对位置。采用单矢量多时轴法画出的时空图上的E2并不是转子电势的实际相位。尽管如此,不影响三相异步电动机等效电路的推导,但应说明的是E2的实际位置应是时空图上对转子绕组a相轴的投影,投影角是定转子绕组空间相轴的夹角。
When the stator and rotor windings of three phase asynchronous motor are cut by the rotating field in the air gape,the phase relationship for the induced emf's in these windings is dependent on the relative space position.In the time space diagram,drawn by single vector and more time axis method,the phase of emf E· 2 in rotor winding is not its actual phase.In spite of this,it has no effect on deriving the equivalent circuit for three phase asynchronous motor,but it should be pointed out that in the time space diagram,the actual position of E· 2 is determined by its projection on the rotor winding phase axis and the projecting angle is the angle between the space phase axes of the stator and rotor windings.
出处
《合肥工业大学学报(自然科学版)》
CAS
CSCD
1999年第3期112-115,共4页
Journal of Hefei University of Technology:Natural Science