Cart (Loading....) | Create Account
Close category search window
 

Speed Control of Induction Motors Using Saturable Reactors [includes discussion]

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Alger, P.L. ; FELLOW AIEE, General Electric Company, Schenectady, N. Y. ; Ku, Y.H.

Synopsis: With the progress in automation, there is a growing need for precise and stepless control of motor speeds in driving fans, pumps, conveyors, and all types of machines. Usually, d-c motors with field and/or voltage control, or induction motors driving the load through eddy-current clutches, are employed for this purpose. In this paper, another method of induction-motor speed control is considered; it employs feedback controlled saturable reactors in series with the motor windings. The performance of the reactor speed-control scheme is considered as a problem in power modulation, in which an electric energy source forms the input, and controlled torque and speed are the desired outputs. This method does not require a d-c power supply, or any commutators or power tubes. In addition to an essentially standard induction motor, the scheme only uses readily available reactors and control circuits. The direct current required for the control is only 1 or 2 % (per cent) of the motor rating, and can readily be supplied from amplistats, or equivalent devices, just as in the case of the clutch. Calculated and test data are given, showing that this method of speed control allows the speed of a wound-rotor induction motor to be set at any desired value between 100% forward and 100% backward, and to be held nearly constant at the set value, over a full range of torque from plus (motoring) to minus (braking), up to the maximum torque value.

Published in:

Power Apparatus and Systems, Part III. Transactions of the American Institute of Electrical Engineers  (Volume:75 ,  Issue: 3 )

Date of Publication:

Jan. 1956

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.