DocumentCode
1378368
Title
Speed control of a D-C motor using a magnetic amplifier
Author
Leonhard, W.
Author_Institution
Westinghouse Electric Corporation, East Pittsburgh, Pa.
Volume
76
Issue
2
fYear
1957
fDate
5/1/1957 12:00:00 AM
Firstpage
112
Lastpage
119
Abstract
Magnetic amplifiers are, similar to thyratrons, suitable for adjustable-voltage drives of d-c motors. While the operation with discontinuous armature current affects the motor characteristics undesirably, it offers in the lower power range an important economical advantage. After a discussion of the open-loop characteristics of the drive, the design of a medium-accuracy (5-per-cent) speed-control system for the fractional- and integer-horsepower range is explained where utmost simplicity and the use of inexpensive components are considered important design factors. Performance characteristics are given.
Keywords
Feedback loop; Inductors; Magnetic circuits; Rectifiers; Saturation magnetization; Torque; Voltage control;
fLanguage
English
Journal_Title
American Institute of Electrical Engineers, Part I: Communication and Electronics, Transactions of the
Publisher
ieee
ISSN
0097-2452
Type
jour
DOI
10.1109/TCE.1957.6372638
Filename
6372638
Link To Document