What is the electrical Angle in the motor? What does it have to do with mechanical angles
Motor for each pole on the stator inner circle of the Angle is 360 ° / p refers to the actual space geometry Angle, this Angle is called the mechanical point of view. In the motor of the number of quadrupole and above often take a pair of polar Angle 360 ° of the defined as electricity, this is because the winding induction electric potential changes in a cycle of 360 °.
For polar motor, the stator inner circle of power Angle and the mechanical Angle is equal to 360 °; And p on the pole motor, the stator inner circle electric all Angle is 360 ° p, but still mechanical Angle is 360 °. So there is a relationship between the two: Electrical Angle = mechanical Angle times logarithmic
Commonly used three-phase brushless dc motor, there are generally three position sensor, the output waveform has two kinds: one kind is phase difference Angle 60 ° electrical, the other is a phase difference of 120 ° Angle. 1 on the poles, for example, phase difference of 120 ° electrical point of view, three position sensor space interval is 120 ° mechanical Angle; 2 on the poles, phase difference is 60 ° electrical point of view, the three position sensor space interval of 30 ° mechanical point of view.
