Figure 5 from Comparison of the vibration of 2-pole and 4-pole cylindrical- rotor alternators due to shorted -turns in the field winding | Semantic Scholar
Salient pole rotor vs. non-salient pole rotor | electricaleasy.com
Synchronous Machine The stator is similar in construction that of a induction motor The rotor can be Salient or Non-Salient (cylindrical rotor) Field excitation. - ppt video online download
Salient Pole Synchronous Generator | Power Angle Curve