所连接的直流电动机可以这样调整使得其转速高于同步转速且旋转方向与定子旋转磁场的方向一致。
The coupled dc motor can be adjusted so that the speed of the system is higher than the synchronous speed and the system rotates in the same direction as the stator rotating field.
用简单的演示实验模拟交流电动机旋转磁场，配合理论教学，改善了课堂教学效果。
Simple demonstration experiments simulating motor rotary field with theoretical teaching improve classroom instruction effect.
当旋转磁场电机用作拖动电动机时，转矩的产生和控制就需要得到特殊的考虑。
When rotating-field machines are employed as drive motors, the question of torque generation and control requires special consideration.
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