Induction motor
The inventor of the induction motor is another technology big cattle Tesla. Generally, the stator core is embedded with a three-phase AC winding. The rotor is composed of a core and a short-circuited cage winding. When the stator winding is connected with three-phase AC, A resultant spatially synchronized rotating magnetic field is generated, which cuts the rotor windings, thereby generating a current in the rotor cage winding, which in turn is subjected to a magnetic field to generate an electromagnetic force that drives the rotor to rotate.
Because no brush is needed on the rotor, the structure is simple, the reliability is good, the production technology is relatively mature, and it is widely used in industrial production. It is used in some passenger cars, but because of its low power density and complicated control, it is rarely used in passenger cars. In order to commemorate this great god, TeslaMotor used copper rod cage induction motors in its predecessors. However, due to its overall efficiency, power density and other performance can not be compared with the rare earth permanent magnet motor, the latest Model3 has changed to use permanent magnet synchronous motor as the drive motor.
