DocumentCode :
1417965
Title :
Self-cascaded machine: a low-speed motor or high-frequency brushless alternator
Author :
Broadway, A.R.W. ; Burbridge, L.
Author_Institution :
University of Bristol, Department of Electrical Engineering, Bristol, UK
Volume :
117
Issue :
7
fYear :
1970
fDate :
7/1/1970 12:00:00 AM
Firstpage :
1277
Lastpage :
1290
Abstract :
The self-cascaded machine is a single-unit version of two separate induction machines connected in cascade. In construction, however, it closely resembles a conventional induction motor. It may be run asynchronously, with resistance control if required, or synchronously without any external connections to the rotor winding. As a motor it is particularly suited to low-speed duties. With its simple and robust form of rotor construction, and the absence of slip rings or rotating diodes, it is also ideally suited for operation at high speeds as a high-frequency brushless alternator. A general description of the machine, and the underlying principles involved, are presented. A theoretical treatment is included based on doubly stator-fed operation of the machine. General performance equations are derived, and equivalent static networks are obtained for steady-state operating conditions.
Keywords :
asynchronous generators; induction motors; machine theory; synchronous machines;
fLanguage :
English
Journal_Title :
Electrical Engineers, Proceedings of the Institution of
Publisher :
iet
ISSN :
0020-3270
Type :
jour
DOI :
10.1049/piee.1970.0247
Filename :
5248687
Link To Document :
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