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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
3-1
3.1 Introduction
AC machines with three or more phases (n 3) operate utilizing the principle of rotating eld,* which is
created by spatially shiing individual phases along the circumference of the machine by an angle that
equals the phase shi in the multiphase system of voltages (currents), used to supply such a multiphase
winding. Such machines are of either synchronous or induction type. All rotating elds in multiphase
machines, caused by the fundamental harmonic of the supply, rotate at synchronous speed, governed
with the stator winding frequency. When the rotor rotates at the same speed, the machine is of syn-
chronous type. When ...
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Publisher Resources

ISBN: 9781439802861