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Impact of Distributed Generation on Distribution Feeder ProtectionChang, Tim 15 December 2010 (has links)
Standard overcurrent protection schemes for passive radial systems assume single direction current flow. The addition of distributed generation (DG) presents issues for the protection scheme, as current can flow from multiple directions. This thesis investigates the impact of DGs on overcurrent protection designed for a radial system, and proposes solutions to address the issues. A realistic feeder system and its protection scheme are developed in PSCAD/EMTDC. A point-of-common-coupling (PCC) is identified, indicating the portion of feeder that can potentially operate as an island. One DG, with output adjusted to maintain a specified power flow at the PCC, is added to the feeder system. The performance of the overcurrent protection in the presence of line, ground, and three-phase faults is analyzed. A second machine, outputting full capacity at unity power factor, is added to the feeder system. The strategies used to develop the single-DG modified protection scheme are applied to the two-DG system. The functionality of the modified protection scheme is verified.
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Impact of Distributed Generation on Distribution Feeder ProtectionChang, Tim 15 December 2010 (has links)
Standard overcurrent protection schemes for passive radial systems assume single direction current flow. The addition of distributed generation (DG) presents issues for the protection scheme, as current can flow from multiple directions. This thesis investigates the impact of DGs on overcurrent protection designed for a radial system, and proposes solutions to address the issues. A realistic feeder system and its protection scheme are developed in PSCAD/EMTDC. A point-of-common-coupling (PCC) is identified, indicating the portion of feeder that can potentially operate as an island. One DG, with output adjusted to maintain a specified power flow at the PCC, is added to the feeder system. The performance of the overcurrent protection in the presence of line, ground, and three-phase faults is analyzed. A second machine, outputting full capacity at unity power factor, is added to the feeder system. The strategies used to develop the single-DG modified protection scheme are applied to the two-DG system. The functionality of the modified protection scheme is verified.
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Control and operation of SMES and SMES/PV systems /Foreman, Mark McKinney, January 1992 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 141-186). Also available via the Internet.
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A methodology to evaluate photvoltaics : storage as a commercial customer initiated demand side management tool /Jockell, John F., January 1992 (has links)
Thesis (M.S.)--Virginia Polytechnic Institute and State University, 1992. / Vita. Abstract. Includes bibliographical references (leaves 182-185). Also available via the Internet.
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Recruiting Generation X for missionsLeduc, Norm. January 1996 (has links)
Thesis (M.A.)--Briercrest Biblical Seminary, 1996. / Abstract. Includes bibliographical references (leaves 120-122).
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Boosting Bohemia : counterculture, development, and identity in the American West, 1900-1990 /Walsh, Patrick John, January 2001 (has links)
Thesis (Ph. D.)--University of Texas at Austin, 2001. / Includes vita. "UMI number 3008465"--T.p. verso. Includes bibliographical references (p. 361-370). Available also in a digital version from Dissertation Abstracts.
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Discrete--continuous model of household vehicle ownership and trip generation a thesis presented to the faculty of the Graduate School, Tennessee Technological University /Chirumamilla, Kiranmai, January 2008 (has links)
Thesis (M.S.)--Tennessee Technological University, 2008. / Title from title page screen (viewed on Sept. 28, 2009). Bibliography: leaves 72-73.
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Electrical current converted from optically excited spin current /Hau, Wing Yu. January 2008 (has links)
Thesis (M.Phil.)--Hong Kong University of Science and Technology, 2008. / Includes bibliographical references. Also available in electronic version.
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Third-order nonlinear optical properties of conjugated polymers and blendsChi, San-Hui. January 2009 (has links)
Thesis (Ph.D)--Chemistry and Biochemistry, Georgia Institute of Technology, 2010. / Committee Chair: Perry, Joseph; Committee Member: Bunz, Uwe; Committee Member: Lyon, Andrew; Committee Member: Marder, Seth; Committee Member: Trebino, Rick. Part of the SMARTech Electronic Thesis and Dissertation Collection.
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Spectroscopic ellipsometry analysis on materials for energy efficient applicationsSaenger Nayver, Mario Fernando. January 2010 (has links)
Thesis (Ph.D.)--University of Nebraska-Lincoln, 2010. / Title from title screen (site viewed June 22, 2010). PDF text: ca. 150 p. : ill. UMI publication number: AAT 3397631. Includes bibliographical references. Also available in microfilm and microfiche formats.
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