Many people are asking what is a permanent magnet synchronous motor? can we see the application of permanent magnet synchronous motor? Follow the editor to learn about it.

It is a synchronous motor which is excited by a permanent magnet to generate a synchronous rotating magnetic field. The permanent magnet acts as a rotor to generate a rotating magnetic field. The three-phase stator winding reacts through the armature under the action of the rotating magnetic field to induce three-phase symmetrical current. It is used in agricultural production many mechanical equipment. For example, elevators, air conditioners, blowers, cars, etc. around us have applications.

The operation principle of the permanent magnet synchronous motor is the same as that of the electric excitation synchronous motor, but it replaces the excitation winding of the latter with the magnetic flux provided by the permanent magnet, so that the motor structure is simpler.

After the permanent magnet material is embedded in the rotor, the rotor the stator magnetic field run synchronically in normal operation, the rotor winding has no induced current, no rotor resistance hysteresis loss, the motor efficiency is improved.

There is no induction current excitation in the rotor of permanent magnet synchronous motor, the stator winding presents resistive load, the power factor of the motor is close to 1, which reduces the stator current improves the efficiency of the motor. At the same time, the improvement of power factor improves the quality factor of the power grid, reduces the loss of the power transmission transformation line, the power transmission transformation capacity can also be reduced, saving the power grid investment.

There is no resistance loss in the rotor winding almost no reactive current in the stator winding, so the motor temperature rise is low.

The permanent magnet synchronous motor is small in size, light in weight less in consumables: the volume, weight materials used in the same capacity of the permanent magnet synchronous motor can be reduced by about 30%. Permanent magnet synchronous motor system adopts completely closed structure, no transmission gear wear, no transmission gear noise, no lubricating oil, no maintenance.