Introduction to the speed change process of the stepless speed changer

　　In the working process of the continuously variable transmission, the main magnetic pole of the stator generates the main magnetic field, and the armature current generates the armature magnetic field. The influence of the armature magnetic field on the main magnetic field is called the armature reaction.

　　When the armature reaction occurs, there will be two results: the deformation of the air gap magnetic field, one pole is the enhancement of the sharp magnetic field, and the weakening of the other pole tip appears to be a demagnetization effect. The two pole tips of each magnetic pole The increase in magnetic flux reduces the total magnetic flux.The magnetic induction intensity of the original geometric neutral line is not equal to zero, and the position where the magnetic induction intensity is zero, that is, the electromagnetic physical neutral line moves by an angle against the rotation direction, and the physical neutral line and the geometric neutral line no longer overlap.The greater the armature current, the greater the armature magnetic field, and the influence of the armature reaction is also great. The armature reaction result of a continuously variable transmission is similar to that of a continuously variable transmission.