An induction motor is a motor that relies on electromagnetic induction to induce current in the rotor to achieve electromechanical energy conversion. The rotor speed of the induction motor is always slightly lower or slightly higher than the speed of the rotating magnetic field, so the induction motor is also called asynchronous motor.
The induction motor is a motor that relies on the electromagnetic induction between the electron and the rotor to induce the current in the rotor to realize the conversion of mechanical energy and electrical energy. The stator of an induction motor usually consists of three parts: the stator core, the stator winding, and the base. The rotor is mainly composed of the rotor core, rotor winding and shaft. Usually, the rotor speed of the induction motor is always slightly lower or slightly higher than the speed of the rotating magnetic field. Therefore, the induction motor is also called an asynchronous motor. When the load on the induction motor changes, the speed of the rotor will also change.
How does an induction motor work?
As the load on an Induction motor changes, the rotor speed changes accordingly. The current in the rotor conductor and the electromagnetic torque will also change accordingly to adapt to the load. When the induction motor is energized, the stator and rotor windings generate a rotating magnetic field, and the rotor windings cut the magnetic field lines to generate an induced current. The induced current interacts with the magnetic field to generate electromagnetic torque, which makes the rotor rotate. When the rotor speed gradually approaches the synchronous speed, the induced current will gradually decrease, and the generated torque will also decrease.
An induction motor is a type of AC motor that converts between mechanical and electrical energy. It has the characteristics of self-starting, high reliability and low cost, so it is widely used in industrial production drives.