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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
22-1
22.1 Introduction
A slip-ring induction machine with stator windings connected to the power system directly and rotor
windings connected through the power converter is called double-fed machine (DFM). If the converter
enables a bidirectional power ow, a DFM will become a universal electromechanical converter. Such a
machine can work as a motor and as a generator in both above and below the synchronous speed. e
speed range depends on the converter and machine rotor winding ratings. Usually the speed range is
limited (about 1:2). is limit causes that DFM is not oen used as a motor. e machine is mainly used
as a variable-speed generator ...
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Publisher Resources

ISBN: 9781439802861