Synchronous motor and three-phase asynchronous motor

difference:1,the biggest difference between synchronous motor and three-phase asynchronous motor is to look at his door of rotor speed is consistent with the three phase generator speed of the stator rotating magnetic field,if the rotation speed of the rotor and stator is the same,that is called synchronous motor,if inconsistent,call three phase asynchronous motor.2,when a logarithmic must have strict relationship between the speed and frequency of the motor,with electrical engineering terms,is the synchronization. Three-phase asynchronous motor is also called induction motor,mainly used as a motor,the rotor speed is always less than synchronous motor at work.3,the so-called "synchronization" is the armature,stator winding through the current,will form a rotating magnetic field in air gap,and the direction of rotation of the magnetic field and rotor electric motor laminations rotating speed and

steering,rotational speed,the same reason for synchronization.Three-phase asynchronous motor,the

rotating magnetic field and rotor relative speed,namely to produce torque.As to why three-phase

asynchronous motor and synchronous motor the opportunity to have such a distinction,to sum up,I have the most fundamental reason is the stator excitation,without excitation for asynchronous,should only produce relative movement,will have the effect of cutting magnetic induction line (or flux change),will produce electromagnetic electricalmotor1.blogspot.com induction force (i.e.,ampere force). And add the excitation,the stator can be seen as a magnet,has fixed the NS,with a rotating magnetic field synchronous rotation,so called synchronous motor. (magnets attract role) The classification of the generator can be summarized as follows:Motor {dc motor Alternator {synchronous generator Asynchronous generator (rarely used) Alternator is also can be divided into single-phase generator and three-phase generator.