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Use of Thyristor Controlled Series Capacitors (TCSCs) to enhance power system transient stability and their possible application on the South African GridGumunyu, Tonderayi January 2015 (has links)
This research report is submitted as a partial fulfilment of the requirements for a
Master of Science degree in Electrical Engineering (Power). / Thyristor Controlled Series Capacitors (TCSCs) are FACTS devices which
incorporate power-electronic-based and other static controllers to enhance
controllability and increase power transfer capability. This research investigated the
possibility of applying TCSCs on the South African transmission network, in
particular application on long transmission lines connecting bulk thermal generators
in the northern part of South Africa to load centres located hundreds of kilometres
elsewhere in the country. The investigation, conducted using PSS/E (a power
system analysis software) demonstrated that application of TCSCs on this part of
South African transmission network results in improved transient stability margins.
The resulting improvement in transient stability is comparable to other transient
stability enhancement options like addition of transmission lines, thus the use of
TCSCs can be considered as an alternative. Further studies would be vital to
understand the interaction between Power System Stabilizers (PSSs) and TCSCs in
order to ensure proper tuning and interaction amongst the devices. / MT2017
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On regulators with a prescribed degree of stabilityNg, Peng-Teng Peter January 1981 (has links)
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1981. / MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING. / Bibliography: leaves 202-204. / by Peng-Teng Peter Ng. / M.S.
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Intelligent control of an interior permanent magnet synchronous motor drive /Uddin, Mohammad Nasir, January 2000 (has links)
Thesis (Ph.D.)--Memorial University of Newfoundland, 2000. / Bibliography: leaves 179-191.
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Weighting normalization in optimal predictive control /Wang, Shensheng, January 2001 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 125-133). Also available on the Internet.
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Weighting normalization in optimal predictive controlWang, Shensheng, January 2001 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2001. / Typescript. Vita. Includes bibliographical references (leaves 125-133). Also available on the Internet.
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Power management of power electronics interfaced low-voltage microgrid in islanding operationLi, Yan Unknown Date
No description available.
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Feasibility study of a neural network current controller for a boost rectifier.Worthmann, Cedric Alwyn. January 2000 (has links)
During the past two decades, Quality of Supply has become a serious problem for Variable Speed
Drives in the industrial and commercial sectors. Quality of Supply problems can trip Variable Speed
Drives, which results in loss of production, which is a significant problem in the paper and pulp
industry. Researchers have proposed that Quality of Supply problems can be minimised in-house,
using controlled front end rectifiers (boost rectifier), to maintain a regulated DC link voltage in the
Variable Speed Drive configuration, as most faults are created by a varying supply voltage.
This thesis extends the work performed on boost rectifiers by investigating the feasibility of replacing
the classical controllers with a Continual Online Trained Artificial Neural Network current controller.
The approach adopted in this thesis was to evaluate and extend the work previously performed on
conventional boost rectifier current controllers and Continual Online Trained Artificial Neural
Network current controlled inverter, at the University of Natal. During this evaluation, the
respective controller shortcomings were identified and addressed. Thereafter the Continual Online
Trained Artificial Neural Network current controller was modified, according to the control
requirements of the boost rectifier, and used as a replacement for the conventional current controller
in the boost rectifier system. Finally, the Continual Online Trained Artificial Neural Network current
controller was evaluated to assess its viability as a current controller for a boost rectifier.
The concept of implementing the real-time Continual Online Trained Artificial Neural Network
current controller using a DSP (Digital Signal Processor) was described, along with the main features
and practical limitations of existing commercial DSP's. It is shown that at the time of writing of this
thesis, the commercially available DSP' s are not powerful enough to implement the Continual Online
Trained Artificial Neural Network current controller. However this thesis also shows that it is
feasible to implement the real-time controller on the newly released TMS320C67 DSP card. / Thesis (M.Sc.Eng.)-University of Natal, Durban, 2000.
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A high power DC motor controller for an electrical race car using power MOSFETSWelchko, Brian A. January 1996 (has links)
Thesis (M.S.)--Ohio University, November, 1996. / Title from PDF t.p.
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Fuzzy logic control for an active power line conditioner /Kirawanich, Phumin, January 2002 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves 95-98). Also available on the Internet.
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Fuzzy logic control for an active power line conditionerKirawanich, Phumin, January 2002 (has links)
Thesis (Ph. D.)--University of Missouri-Columbia, 2002. / Typescript. Vita. Includes bibliographical references (leaves 95-98). Also available on the Internet.
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