Research Article

Outer Rotor Permanent Magnet Passively Compensated Pulsed Alternator for Electromagnetic Railgun System

Table 1

Main parameters of ORPMPCPA.

Peak power (GW)2.5
Rotation inertia (kg·m2)7000
Rotation speed of alternator (rpm)12000
Outer diameter of stator (mm)1180
Outer diameter of rotor (mm)1860
Core length (mm)700
Air gap (mm)1
Thickness of compensating cylinder (mm)6
Section area of winding (mm2)300
Air gap flux density (Bδ/T)0.98
Phase number of winding2
Number of parallel branches4
Number of conductors per slot2
Number of poles4