Electric motors are important electromagnetic devices that provide power to various devices through the conversion of electrical and mechanical energy, and are an indispensable part of modern society.

There are various types of motors, which can be divided into AC motors and DC motors according to the different forms of electrical energy. AC motors can be divided into single-phase AC motors and three-phase AC motors. In addition, motors can also be divided into synchronous motors and asynchronous motors based on different slip rates.

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.