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Power Electronics and Motor Drives
book

Power Electronics and Motor Drives

by Bogdan M. Wilamowski, J. David Irwin
October 2018
Intermediate to advanced content levelIntermediate to advanced
1015 pages
40h 24m
English
CRC Press
Content preview from Power Electronics and Motor Drives
Permanent Magnet Synchronous Motors 6-11
where
L
stk
is the stack length of the motor
S
slot
is the cross area of the slot
n
aq
is the number of conductors of the phase a within the qth slot of the stator
e PM ux linkage can be also estimated analytically as
Λ Φ
m
w
k N
=
2
(
6.11)
where Φ is the magnetic ux per pole, given by
Φ = B
DL
p
g
stk
π
2
(6.12)
where
B
g
is the average ux density in a pole
D is the stator inner diameter
6.3.2 Operation with d-Axis Stator Current
e d-axis current produces a ux along the d-axis. A positive d-axis current is magnetizing, increasing
the ux produced by the PM. Conversely, a negative d-axis current is demagnetizing, since ...
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Publisher Resources

ISBN: 9781439802861