- #1
Elektrostatik
- 20
- 0
Hello!I'm working on an experimental alternating current generator project
and need specific equations to calculate voltage and current output
from a permanent magnet driven inductor, so I will have an idea what to expect
before I commit real money to expensive materials.
the only variables in the equations should be those which I can directly control and measure :
using the symbols below :
S - wire cross section area ( mm² )
t - total number of turns
L - number of winding layers
W - turns per winding layer
R - coil DC resistance (Ω)
C - coil diametre ( mm )
H - coil height ( mm )
c - core diametre ( mm )
h - core height ( mm )
T - magnetic flux density ( T )
M - magnet diametre ( mm )
m - magnet height ( mm )
a - polar reversals per second ( 1600 / s )
g - gap between rotor magnet and stator coil inductor ( mm )
A - output current ( A )
V - output voltage ( V )
K - ambient temperature ( 293.15 K )
P - core permeability ( mH )design component values :
alternating polarity permanent magnets mounted parallel to the rotation axis
near the rim of the rotor.
rotor magnets : 30 mm Ø x 30 mm sintered N52 grade Neodymium
magnet flux density : 1.5 T
inductor core : 12 mm Ø x 12 mm soft iron
core permeability : 80? mH
inductor coil : 12100 turns of 0.106 mm Ø polysol insulated copper magnet wire 110 windings x 110 layers
coil resistance : 2 Ω / m x 912 m = 1824 Ω DCR
thanks in advance!
and need specific equations to calculate voltage and current output
from a permanent magnet driven inductor, so I will have an idea what to expect
before I commit real money to expensive materials.
the only variables in the equations should be those which I can directly control and measure :
using the symbols below :
S - wire cross section area ( mm² )
t - total number of turns
L - number of winding layers
W - turns per winding layer
R - coil DC resistance (Ω)
C - coil diametre ( mm )
H - coil height ( mm )
c - core diametre ( mm )
h - core height ( mm )
T - magnetic flux density ( T )
M - magnet diametre ( mm )
m - magnet height ( mm )
a - polar reversals per second ( 1600 / s )
g - gap between rotor magnet and stator coil inductor ( mm )
A - output current ( A )
V - output voltage ( V )
K - ambient temperature ( 293.15 K )
P - core permeability ( mH )design component values :
alternating polarity permanent magnets mounted parallel to the rotation axis
near the rim of the rotor.
rotor magnets : 30 mm Ø x 30 mm sintered N52 grade Neodymium
magnet flux density : 1.5 T
inductor core : 12 mm Ø x 12 mm soft iron
core permeability : 80? mH
inductor coil : 12100 turns of 0.106 mm Ø polysol insulated copper magnet wire 110 windings x 110 layers
coil resistance : 2 Ω / m x 912 m = 1824 Ω DCR
thanks in advance!
Last edited: