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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
6-26 Power Electronics and Motor Drives
With double-layer winding and Q/t even, or with single-layer windings and Q/(2t), the MMF space
harmonics are only of odd order, so that the harmonic order can be expressed as (2n − 1) times t [40,43].
Conversely, with the other winding combinations, the order of the MMF space harmonics is both
odd and even, so that the harmonic orders are expressed as n times t. Finally, when the double-layer
winding is transformed into a single-layer winding and Q/t is odd (the transformation is possible
only if t is even), the machine periodicity decreases to t/2. Thus, harmonics of lower order (i.e.,
subharmonics) ...
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Publisher Resources

ISBN: 9781439802861