PMSM Rotor Design. Are these terms equivalent?

I'm working on a project with a PMSM. As I go through the literature I come across the following terms and wanted to make sure that I am getting right which ones are synonyms.

Surface-mounted PM = Non-salient pole rotor = Round Rotor = Cylindrical (in this case Inductances $$\L_d\$$ and $$\L_q\$$ are equal)

Interior Mounted PM = Buried PM = Salient pole rotor (in this case $$\L_q \neq L_q\$$)

Is that right?

• When you say 'round rotor' for the surface PM rotor, that means the steel hub, and with magnet arcs of uniform radial thickness. For surface PM rotors with breadloaf-shaped magnets, or magnets that don't cover the full circumference and have positioning nubs on the hub, the Ld and Lq values will still not be quite equal. – Phil G Oct 2 '19 at 13:38