Global ETD Search

31	Digital stabilizer for brushless doubly-fed machine Krishnan, 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 Electric motors, Brushless Electric machinery -- Automatic control Digital control systems
32	Microcomputer control of excitation of a synchronous machine / Lo, Kin-chung. January 1981 (has links) Thesis (M. Phil.)--University of Hong Kong, 1982.
33	The real-time implementation of hardware-in-the-loop systems on different RTOS platforms Lee, Young Joon 08 1900 (has links) No description available. Digital control systems Real-time data processing Operating systems (Computers)
34	Design of direct digital frequency synthesizer for wireless applications Chimakurthy, Lakshmi Sri Jyothi. Dai, Foster. January 2005 (has links) (PDF) Thesis(M.S.)--Auburn University, 2005. / Abstract. Vita. Includes bibliographic references.
35	Advanced current-mode control techniques for DC-DC power electronic converters Wan, 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.
36	SIMULINK modules that emulate digital controllers realized with fixed-point or floating-point arithmetic Robe, Edward D. January 1994 (has links) Thesis (M.S.)--Ohio University, June, 1994. / Title from PDF t.p.
37	Digital control of pulse width modulated inverters for high performance uninterruptible power supplies Marwali, 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).
38	Digital implementation of direction-of-arrival estimation techniques for smart antenna systems Abusultan, 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).
39	Microcomputer control of excitation of a synchronous machine Lo, Kin-chung. January 1981 (has links) Thesis (M.Phil.)--University of Hong Kong, 1982. / Also available in print.
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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