A motor is a device that converts electrical energy into mechanical energy. It utilizes a通电线圈 (also known as the stator winding) to generate a rotating magnetic field, which acts on the rotor (such as a squirrel-cage closed aluminum frame) to form a magnetic electrodynamic rotational torque. Motors are categorized into DC motors and AC motors based on the power source used, with most motors in power systems being AC motors, which can be either synchronous or asynchronous (where the stator magnetic field speed does not maintain synchronous speed with the rotor rotation speed). Motors are primarily composed of the stator and rotor, and the direction of motion of the通电导线 in the magnetic field is related to the direction of the current and the magnetic flux lines (magnetic field direction). The working principle of a motor is the action of the magnetic field on the current force, causing the motor to rotate.