Motor converts electrical energy into mechanical energy of the equipment, it is using electric coil in the magnetic field stress rotation phenomenon, which distributed in each user, motor by using the power divided into dc motor and ac motor, electric power system in most of the motor is ac motor, synchronous motor or induction motor. The motor is mainly composed of stator and rotor. The direction of force motion of a current conductor in a magnetic field is related to the direction of current and magnetic induction line. The working principle of the motor is the action of the magnetic field on the current force, which makes the motor turn.
Normally, the working part of a motor moves in rotation, which is called a rotor motor. There are also linear motion, called a linear motor. Electric motors provide a wide range of power, from the milliwatt level to the megawatt level. The use and control of the motor is very convenient, with self-starting, acceleration, braking, reversing, pawling and other capabilities, can meet various operating requirements; The motor has higher working efficiency, no smoke, no smell, no pollution of the environment, and less noise. Because of a series of advantages, it is widely used in industrial and agricultural production, transportation, national defense, commerce and household appliances, medical appliances and other aspects.
Analysis of working principle of three-phase asynchronous motor
Induction motors work by creating an induced current in a conductor as it cuts a line of force in a magnetic field, hence the name induction motor. The combined action of induced current and magnetic field exerts a driving force on the rotor of the motor. The three sets of windings differ from each other by 120 degrees. Each set of windings is supplied by one phase of a three-phase AC power supply.
