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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
2-6 Power Electronics and Motor Drives
to angle n
r
β), the vectors of the mmf fundamental components created by the two layers will also be
shied by the same angle.
Let us dene A
layer
as the amplitude of the mmf fundamental component produced by each layer
and K
d
as the distribution coecient of the single layer. e amplitude of the resultant mmf can be
calculated as
A A
n
A K
Z
I
r
d
f
fundamental layer layer
; where= =2
2
1
2
cos
β
π
A K
n
Z I
d
r
f
fundamental
= cos
β
π
2
K
n
r
r
= cos
β
2
(2.8)
e coecient K
r
is called shortening coecient of the winding. is coecient is equal to 1 when
the two layers are superposed in the same slots (n
r
= 0). Obviously, in th
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Publisher Resources

ISBN: 9781439802861