Comparison of Synchronous Motor Types

🧲 Permanent magnet synchronous motors have permanent magnets in the rotor, generating a constant magnetic field in synchrony with the rotating field of the stator.

🔺🔻 The difference between IPMSM and SPMSM lies in the position of the magnets: embedded in the rotor for IPMSM and on the surface of the rotor for SPMSM.

💡 Externally excited synchronous motors use coils in the rotor to generate a magnetic field based on the current flowing through the coils.

🔌 Externally excited synchronous motors have slip rings for current transmission.

💡 The strength of the magnetic field in SESM can be adjusted without the need for current.

🔄 Reluctance motors have no magnets or coils in the rotor and align based on magnetic resistance.