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Digitally-controlled programmable delay line for TV signal.January 1974 (has links)
Thesis (M.Sc.)--Chinese University of Hong Kong. / Bibliography: leaves 84-86.
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Probabilistic analysis of harmonics in railway traction system阮國豪, Yuen, Kwok-hoo. January 2000 (has links)
published_or_final_version / Electrical and Electronic Engineering / Master / Master of Philosophy
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Fourier waveform synthesizerBirdsall, Edwin Fred, 1927- January 1951 (has links)
No description available.
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Harmonic analysis of power systems connected to converter substationsChristoforidis, George P. 05 1900 (has links)
No description available.
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Theoretical and experimental study of wave forms of transformer supplying mercury-arc rectifierBrown, Hugh Austin 12 1900 (has links)
No description available.
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A novel method for major harmonic sources identification in high voltage transmission systemsLiang, Shun. January 2009 (has links)
Thesis (Ph.D.)--University of Texas at Arlington, 2009.
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Cyclotron wave propagation along the magnetic field in a transient plasmaMoy, Alfred Kin-Kwok, January 1969 (has links)
Thesis (M.S.)--University of Wisconsin--Madison, 1969. / eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references.
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Extreme ultraviolet polarimetry with laser-generated high-order harmonics /Brimhall, Nicole, January 2007 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Physics and Astronomy, 2007. / Includes bibliographical references (p. 50-54) and index.
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Phase-matching optimization of laser high-order harmonics generated in a gas cell /Sutherland, Julia Robin Miller, January 2005 (has links) (PDF)
Thesis (M.S.)--Brigham Young University. Dept. of Physics and Astronomy, 2005. / Includes bibliographical references (leaves 48-52).
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Analysis for electrical energy and overall efficiency in distribution networks with harmonic distortionNegumbo, Rosalia January 2009 (has links)
Thesis (MTech (Electrical Engineering))--Cape Peninsula University of Technology, 2009 / Traditionally, harmonics are ignored in overall efficiency and energy usage studies. However,
in the modern era, power systems contain levels of harmonics which can no longer be
ignored by engineers, planners, energy conservationists and economists. The directions of
power flows have to be considered when harmonics are present in the power network.
A methodology and new formulae for individual and overall efficiency and energy usage is
developed at each frequency (f1, h and H) and forms the main contribution to research in this
field.
Two case studies were conducted; a measurement based laboratory experiment set-up and a simulated case study. In the set-up, measurements of current, voltage and power at different points in the network for the 1st, 5th and 7th frequencies were taken. Current and voltage results were used for hand calculations to prove the measured power flows and directions. The measurements were taken with a Fluke 345 three-phase harmonic power quality analyzer. For the simulated case study, a network was investigated using the DIgSILENT and SuperHarm software packages. Their results were compared and it was found that DIgSILENT is the preferred package for power results.
It was found that the total harmonic distortion limit for voltage in the simulated network
exceeded an acceptable level. The harmonic mitigation solution chosen was to design a
passive filter to decrease the distortion by shifting the resonance point of the network. The
method to design the passive filter and its impact on efficiency and energy usage is included
in the thesis.
Unique power flow direction diagrams are developed as part of the methodology and form an
essential step in the derivation of the new formulae. Efficiencies, power losses and energy
usage at individual and combined frequencies were determined. Results showed the
negative effects of harmonics on overall efficiency, energy usage and power losses of the
system. The methodology and new formulae developed was found to be effective and their
application is recommended for use by industry.
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