The permanent magnet synchronous motor
Permanent Magnet Synchronous Motor (PMSM) is indeed a type of motor that is efficient, reliable and compact, and is widely used in many fields such as industry, transportation, and home appliances.
The permanent magnet synchronous motor uses permanent magnet to provide excitation, which makes the motor structure simpler, reduces the cost of processing and assembly, and saves the collector ring and brush that are prone to problems, thus improving the reliability of motor operation; The efficiency and power density of the motor are improved because there is no excitation current and no excitation loss.
Permanent magnet synchronous motor is composed of stator, rotor, end cover and other components. The stator is basically the same as the ordinary induction motor, and the lamination structure is adopted to reduce the iron loss of the motor during operation. The rotor can be made into solid or laminated. The armature winding can be centralized full pitch winding, or distributed short pitch winding and unconventional winding.
