An optimal design method and procedure are discussed for a tubular single-phase single-slot permanent magnet linear alternator. An illustrative design example is presented.
List of Principal Symbols: 0 =the phase angle between induced voltage and stator current, degree B = flux density, T B, = flux density in permanent magnet, T Bpch= average flux density in the horizontal part of flux p i t h in plunger back iron, T Bpcv= Average flux density in the vertical part of flux path in plunger back iron, T lBsch= average flux density in the horizontal part of stator back iron, T B, , = average flux density in the vertical part of stator back iron, T Bsp = average flux density in the stator pole shoes, T E = induced voltage, volt Eo = no load induced voltage, volt H, = field intensity in permanent magnet, A/m Hpch= average field intensity in the horizontal part of flux path in plunger back iron, A/" Hpcv= average field intensity in the vertical part of flux path in plunger back iron, A/m Hsch= average field intensity in the horizontal part of stator back iron, A/m Kc,= average field intensity in the vertical part of stator h c k iron, A/m Kp= average field intensity in the stator pole shoes, A/m I, =stator current, A J = current density, ~/ r n m * Kt = iron loss coefficient W/lb P =output power, kVA R, =stator resistance, fl