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Power Electronics Design
book

Power Electronics Design

by Keith H. Sueker
April 2011
Intermediate to advanced content levelIntermediate to advanced
272 pages
6h 11m
English
Newnes
Content preview from Power Electronics Design
8.2. Synchronous Machines 103
Drives for DC machines generally follow the simplified block dia-
gram shown in Fig. 8.2. An inner current regulator loop is surrounded
by a voltage or speed regulator loop. The inner loop is necessary
because the DC machine appears as a very low resistance to dynamic
voltage changes. The voltage feedback loop may be augmented by
feedback from a tachometer or shaft encoder for precise speed con-
trol. The current regulator may be embellished with current ramps,
current limits, and thermal limits for optimum motor performance and
protection. A variable field supply may be added for extended speed.
The author once extended ...
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Publisher Resources

ISBN: 9780750679275