Electric Motor for Vehicle

Introduction
 

Permanent magnet synchronous motor is a synchronous motor excited by permanent magnet to generate synchronous rotating magnetic field. The permanent magnet as the rotor generates rotating magnetic field. The three-phase stator winding induces three-phase symmetrical current through armature reaction under the action of rotating magnetic field.
At this time, the rotor kinetic energy is converted into electric energy, and the permanent magnet synchronous motor is used as a generator; In addition, when the three-phase symmetrical current is connected to the stator side, due to the difference of 120 in the spatial position of the three-phase stator, the three-phase stator current generates a rotating magnetic field in the space, and the rotor is moved under the action of electromagnetic force. At this time, the electric energy is converted into kinetic energy, and the permanent magnet synchronous motor is used as a motor.

Product feature

• Since there is no gearbox, the bogie system can be designed arbitrarily, such as flexible bogie and single axle bogie, which greatly improves the dynamic performance of the train.
• Due to the use of permanent magnetic poles, especially rare earth permanent magnets (such as neodymium iron boron, etc.), the magnetic energy product is high and high air gap flux density can be obtained. Therefore, when the capacity is the same, the motor has small volume and light weight.
• The rotor has no copper loss, iron loss, friction loss of collector ring and brush, and has high operation efficiency.
• Small moment of inertia, large allowable pulse torque, high acceleration, good dynamic performance, compact structure and reliable operation.

Product drawing