Electric motors play an important role in production and daily life, especially in electric motors. According to statistics, electric motors consume over 60% of the electricity consumption. However, due to the frequent exposure of electric motors to harsh environments such as high temperature, high pressure, toxic, harmful, corrosive, humid, and dusty conditions, they are prone to malfunctions, which in turn affect the normal operation and safety of production equipment.

Synchronous motors can be divided into permanent magnet synchronous motors, hysteresis synchronous motors, and reluctance synchronous motors based on the different magnetic fields. Asynchronous motors include induction type and AC commutator type, among which induction type asynchronous motors can be further divided into three-phase asynchronous motors and shield pole asynchronous motors.

The main function of an electric motor is to convert electrical energy into mechanical energy to drive various mechanical devices, while a generator converts other forms of energy, such as chemical energy, water energy, or wind energy, into mechanical energy first, and then converts mechanical energy into electrical energy.

The motor has good controllability, and the speed and torque of the motor can be easily adjusted by controlling the voltage and current. Meanwhile, the maintenance of the motor is relatively simple, with fewer parts and no need for lubrication, making maintenance work easier.