A Double-Sided Linear Primary Permanent Magnet Vernier Machine

Table 3

Comparison of both machines.

Item	LPPMV	DSLPPMV
No-load EMF amplitude (V)	60	65
Thrust force (kN)	1.6	1.78
Magnet volume (cm^3)	120	180
Machine volume (cm^3)	5652	4590
Thrust force/magnet volume (kN/m^3)	13300	9800
Thrust force/machine volume (kN/m^3)	283	387