1
What is?
to generate the electromagnetic torque of the driving motor for rotating the rotor is formed by the stator windings of the AC magnetic field interacts with the rotating magnetic field of the induced current in the rotor winding.
2
You know what?
-speed induction motor rotor is always less than the rotating magnetic field.
· simple structure, reliable and durable, maintenance more convenient.
· Frequency asynchronous motor to achieve the ability to recover the kinetic energy is relatively easy.
· volume compared to permanent magnet synchronous motor, greater weight.
– the presence of less efficient, difficult to heat the rotor, the difference in speed performance disadvantages.
3
Principle
When the motor stator windings into symmetrical AC power, generated a rotating magnetic field, the rotating magnetic field cutting rotor winding, thereby generating an induced current in the rotor winding, the rotor carrying conductor of the stator will rotate in the magnetic field generate an electromagnetic force, so as to form an electromagnetic torque on the motor shaft, rotation of the drive motor, and motor rotation direction is the same direction of the rotating magnetic field. When the inner conductor in a magnetic fieldCutting magnetic lines, current is induced in the conductor. Induced current and the magnetic field applied to the combined action of the driving force to the motor rotor.