Synchronous Motor - Overview and Construction Types 

The video describes and compares four design variants of synchronous machines:
❶ Electrically Excited Synchronous Machine (EESM)
❷ Synchronous Reluctance Machine (SynRM)
❸ Surface mounted permanent magnet synchronous machines (SPMSM)
❹ Buried permanent magnet synchronous machines
▻ Permanent magnet assisted synchronous reluctance machine (PMaSynRM)
▻ Interior permanent magnet synchronous machine (IPMSM)
⚡The comparison is based on the shape of the torque characteristic, which is derived and explained in the video.
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🔍▶ Time Navigation:
0:45 Derivation of the torque characteristic of a motor with non-salient rotor.
2:18 The reason for introducing the d-q reference frame.
3:18 Phasor diagram of a machine with salient poles.
5:24 Description and explanation of the torque characteristic of a salient pole machine.
7:30 Permanent magnet synchronous machines.
10:04 Classification of synchronous machines without field winding on the rotor.
🖼️▶ Sources of adopted graphics:
- www.ge.com/
- www.bosch-mobility.com/
- yasa.com/
- www.zf.com/