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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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Showing 31 to 40 of 100 (0.078 seconds)Spelling suggestions: "subject:"figital control systems"" "subject:"adigital control systems""
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Digital stabilizer for brushless doubly-fed machineKrishnan, Sheela 01 October 1990 (has links)
The exceptional feature of the brushless doubly-fed
machine is the lack of need for frequent replacement of
brushes. The inherent instability of this machine has to be
overcome for its application in adjustable speed drives and
variable speed generation systems.
Specific objectives were:
to study the characteristics of the machine
pertinent to its application in adjustable speed
drives and variable speed generation systems,
to develop a stabilizer depending on the nature of
the instability.
The brushless doubly-fed machine was found to be unstable
over much of the useful operating range. A digital feedback
control was implemented using a combination of hardware and
software elements/to stabilize the machine. The feedback
system was a band pass filter. The software was developed with
a processing time fast enough to match the speed of response
required by the stabilizer to overcome the unstable
oscillations.
The performance of the machine was compared with and
without the stabilizer to test its effectiveness. Stable
operation was achieved over the entire operating region. / Graduation date: 1991
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| 32 |
Microcomputer control of excitation of a synchronous machine /Lo, Kin-chung. January 1981 (has links)
Thesis (M. Phil.)--University of Hong Kong, 1982.
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| 33 |
The real-time implementation of hardware-in-the-loop systems on different RTOS platformsLee, Young Joon 08 1900 (has links)
No description available.
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| 34 |
Design of direct digital frequency synthesizer for wireless applicationsChimakurthy, Lakshmi Sri Jyothi. Dai, Foster. January 2005 (has links) (PDF)
Thesis(M.S.)--Auburn University, 2005. / Abstract. Vita. Includes bibliographic references.
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| 35 |
Advanced current-mode control techniques for DC-DC power electronic convertersWan, Kai, January 2009 (has links) (PDF)
Thesis (Ph. D.)--Missouri University of Science and Technology, 2009. / Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 4, 2009) Includes bibliographical references.
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| 36 |
SIMULINK modules that emulate digital controllers realized with fixed-point or floating-point arithmeticRobe, Edward D. January 1994 (has links)
Thesis (M.S.)--Ohio University, June, 1994. / Title from PDF t.p.
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| 37 |
Digital control of pulse width modulated inverters for high performance uninterruptible power suppliesMarwali, Mohammad Nanda Rahmana, January 2004 (has links)
Thesis (Ph. D.)--Ohio State University, 2004. / Title from first page of PDF file. Document formatted into pages; contains xviii, 224 p.; also includes graphics. Includes bibliographical references (p. 199-211).
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| 38 |
Digital implementation of direction-of-arrival estimation techniques for smart antenna systemsAbusultan, Monther Younis. January 2010 (has links) (PDF)
Thesis (MS)--Montana State University--Bozeman, 2010. / Typescript. Chairperson, Graduate Committee: Brock LaMeres. Includes bibliographical references (leaves 92-96).
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| 39 |
Microcomputer control of excitation of a synchronous machineLo, Kin-chung. January 1981 (has links)
Thesis (M.Phil.)--University of Hong Kong, 1982. / Also available in print.
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| 40 |
An embedded control and display system for a laser-based mid-infrared hyperspectral imager /Ross, Mark. January 2008 (has links)
Thesis (M.Phil.) - University of St Andrews, January 2009.
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