A limit cycling speed control system.
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Authors
Kocaoglu, Hasan
Subjects
limit-cycle
thyristor
describing-function
ripple instability
subharmonics
thyristor
describing-function
ripple instability
subharmonics
Advisors
Thaler, G.J.
Date of Issue
1970-12
Date
December 1970
Publisher
Monterey, California ; Naval Postgraduate School
Language
en_US
Abstract
The concept of a limit cycling control in power supplies
and speed control has advanced the application of these broad
areas. ON-OFF switching of a thyristor provides a simple and
economical method of control and regulation. This switching
of the thyristor causes the system to limit cycle.
Basic analysis and design of speed control was performed
A describing function was developed to model the power-supply
and rectifier bridge. Then it was used to predict the frequency
and amplitude of the limit-cycle.
A digital computer program was used to simulate the system
response and to construct the describing function curves.
To verify the describing function validity, the limit cycle
predictions were compared with the simulated results.
Fourier analyses were performed to determine the ripple
instability and subharmonic effect of the system output.
Type
Thesis
Description
Series/Report No
Department
Electrical Engineering
Organization
Naval Postgraduate School (U.S.)
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Approved for public release; distribution is unlimited.
Rights
Copyright is reserved by the copyright owner