𧲠Permanent magnet synchronous motors have permanent magnets in the rotor, generating a constant magnetic field in synchrony with the rotating field of the stator.
πΊπ» 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.
π‘ Externally excited synchronous motors use coils in the rotor to generate a magnetic field based on the current flowing through the coils.
π Externally excited synchronous motors have slip rings for current transmission.
π‘ The strength of the magnetic field in SESM can be adjusted without the need for current.
π Reluctance motors have no magnets or coils in the rotor and align based on magnetic resistance.
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