How to prevent demagnetization of permanent magnet motor?

As a new type of product that is more efficient, energy-saving and easier to control, permanent magnet motors are more and more favored by users. At the same time, how to prevent demagnetization and prolong service life has also become the focus of users' concern. The following will introduce the method to prevent the demagnetization of the permanent magnet motor.

1. Avoid heavy load starting and frequent starting

The starting torque is oscillating, and in the valley section of the starting torque, the stator magnetic field has a demagnetization effect on the rotor magnetic pole. Therefore, try to avoid heavy load and frequent starting of permanent magnet DC motors.

2. Correct selection of permanent magnet motor power

Demagnetization is related to the power selection of permanent magnet DC motors. Correct selection of the power of a permanent magnet DC motor can prevent or delay demagnetization. The main reason for the demagnetization of the permanent magnet synchronous motor is that the temperature is too high, and the overload is the main reason for the high temperature. When selecting the power of the permanent magnet motor, a certain margin should be left. According to the actual situation of the load, generally about 20% is more appropriate.

The above is the method introduced by Vshida Micromotor on how to prevent the demagnetization of the permanent magnet motor. I hope it will help you. For more information, please feel free to contact us