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Rozprawy doktorskie na temat „Transmission Power Control”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Matthews, S. R. "Harmonic control on power systems." Thesis, Queen's University Belfast, 1995. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.295421.

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Kreikebaum, Frank Karl. "Control of transmission system power flows." Diss., Georgia Institute of Technology, 2013. http://hdl.handle.net/1853/50392.

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Power flow (PF) control can increase the utilization of the transmission system and connect lower cost generation with load. While PF controllers have demonstrated the ability to realize dynamic PF control for more than 25 years, PF control has been sparsely implemented. This research re-examines PF control in light of the recent development of fractionally-rated PF controllers and the incremental power flow (IPF) control concept. IPF control is the transfer of an incremental quantity of power from a specified source bus to specified destination bus along a specified path without influenc

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3

Liao, Rui. "Transmission power control in wireless networks." Thesis, Queen Mary, University of London, 2010. http://qmro.qmul.ac.uk/xmlui/handle/123456789/558.

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Ad hoc wireless networks have emerged as a promising communication scheme to meet the ever growing portability and infrastructureless demand of wireless services. The transmission power level affects signal quality and interference which causes congestion and thus impacts the communication performance. Hence, power control has been the focus of extensive research. In this thesis, we examine the problem of power control in wireless networks, specially in ad hoc wireless networks. Two important types of power control, which are power control with fixed SNIR targets and power control with variabl

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4

Liu, Haifeng. "Planning reactive power control for transmission enhancement." [Ames, Iowa : Iowa State University], 2007.

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Souccar, Karim. "Transmission power control for wireless sensors networks." [Tampa, Fla] : University of South Florida, 2006. http://purl.fcla.edu/usf/dc/et/SFE0001664.

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6

Terra, Luiz Danilo Barbosa. "A global methodology for reactive power management and voltage control in power systems." Thesis, Imperial College London, 1989. http://hdl.handle.net/10044/1/47685.

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7

Horner, Jane Louise. "Vibrational power transmission through beam-like structures." Thesis, University of Southampton, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.253408.

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8

Yuan, Yin. "Transmission power control in wireless ad-hoc networks /." View abstract or full-text, 2008. http://library.ust.hk/cgi/db/thesis.pl?ECED%202008%20YUAN.

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9

Berggren, Fredrik. "Power control, transmission rate control and scheduling in cellular radio systems." Licentiate thesis, KTH, Signaler, sensorer och system, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-1240.

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10

Gow, John A. "Modelling, simulation and control of photovoltaic converter systems." Thesis, Loughborough University, 1998. https://dspace.lboro.ac.uk/2134/6871.

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The thesis follows the development of an advanced solar photovoltaic power conversion system from first principles. It is divided into five parts. The first section shows the development of a circuit-based simulation model of a photovoltaic (PV) cell within the 'SABER' simulator environment. Although simulation models for photovoltaic cells are available these are usually application specific, mathematically intensive and not suited to the development of power electronics. The model derived within the thesis is a circuit-based model that makes use of a series of current/voltage data sets taken

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11

Gunaratne, Chanaka Sujidhara Rajasinghe. "Traffic-based SIR measurement for power control in W-CDMA." Thesis, University of Surrey, 2002. http://epubs.surrey.ac.uk/844316/.

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Accurate and fast power control is perhaps the most important aspect in W-CDMA, in particular on the uplink. This thesis describes the work earned out to evaluate and enhance the link-level performance of closed-loop power control (CLPC) for the UMTS-FDD uplink. Factors that influence the performance of the CLPC scheme amongst others include the round-trip delay, UE (User Equipment) speed, dynamic range of the handset, the level of diversity available at the receiver and the accuracy of SIR (Signal-to-Interference-plus-Noise Ratio) estimation and channel estimation. The above-mentioned perform

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12

Hasanovic, Azra. "Modeling and control of the unified power flow controller (UPFC)." Morgantown, W. Va. : [West Virginia University Libraries], 2000. http://etd.wvu.edu/templates/showETD.cfm?recnum=1633.

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Thesis (M.S.)--West Virginia University, 2000.<br>Title from document title page. Document formatted into pages; contains viii, 78 p. : ill. Includes abstract. Includes bibliographical references (p. 61-63).

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13

Mohd, Siam Mohd Fadzil. "The control of a static var compensator and active power filter." Thesis, Heriot-Watt University, 1998. http://hdl.handle.net/10399/1210.

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14

Abdelaal, Ashraf Khalil Ibrahim. "Expert system applications to electrical power system voltage control and security." Thesis, University of Strathclyde, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366882.

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15

Xiao, Ying. "Operational optimisation of FACTS control for improving transmission services." Thesis, Brunel University, 2001. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367885.

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16

Eriksson, Robert. "Coordinated Control of HVDC Links in Transmission Systems." Doctoral thesis, KTH, Elektriska energisystem, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-30625.

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Dynamic security limits the power transfer capacity between regions and therefore has an economic impact. The power modulation control of high-voltage direct current (HVDC) links can improve the dynamic security of the power system. Having several HVDC links in a system creates the opportunity to coordinate such control, and coordination also ensures that negative interactions do not occur among the controllable devices. This thesis aims to increase dynamic security by coordinating HVDC links, as an alternative to decreasing the transfer capacity. This thesis contributes four control approache

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17

Eriksson, Robert. "Security-centered Coordinated Control in AC/DC Transmission Systems." Licentiate thesis, Stockholm : Royal Institute of Technology, 2008. http://kth.diva-portal.org/smash/record.jsf?searchId=4&pid=diva2:101.

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18

Elders, Ian Michael. "The use of intelligent systems in control and management of power systems." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.248724.

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19

Foster, Justin M. "Control systems in power markets: demand response, transmission topology control, and renewable integration." Thesis, Boston University, 2012. https://hdl.handle.net/2144/31554.

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Thesis (Ph.D.)--Boston University<br>PLEASE NOTE: Boston University Libraries did not receive an Authorization To Manage form for this thesis or dissertation. It is therefore not openly accessible, though it may be available by request. If you are the author or principal advisor of this work and would like to request open access for it, please contact us at open-help@bu.edu. Thank you.<br>National directives emphasizing improved power grid sustainability, reliability, and economic performance motivate innovative research directions in demand response and renewable generation integration. In ad

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20

Prieto, Araujo Eduardo. "Power converter control for offshore wind energy generation and transmission." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/396110.

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This thesis discusses the control of different power converters that will have a key role in future offshore wind power systems, enabling the integration of the power generated by the wind turbines into the mainland grid. First, an overview of the evolution of wind turbines is presented, from the first prototypes to the latest topologies in use. Then, a new decentralized control strategy of a triple three-phase permanent magnet synchronous generator, a machine topology specifically designed for offshore wind, is presented. The proposed controller is tested on a wind turbine emulator with a sc

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21

Kothandaraman, Arthi Roppel Thaddeus A. "An energy-efficient transmission power control protocol for cooperative robotics." Auburn, Ala, 2008. http://repo.lib.auburn.edu/EtdRoot/2008/FALL/Electrical_and_Computer_Engineering/Thesis/Kothandaraman_Arthi_45.pdf.

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22

Guldbrand, Anna. "Analysis of an induction regulator for power flow control in electric power transmission systems." Thesis, Linköping University, The Department of Physics, Chemistry and Biology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-5329.

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<p>Controlling the power flow in transmission systems has recently gained increased interest. The difficulties of building new lines and the pressure of having a high utilization of existing assets, makes the flexibility of grid systems increasingly important.</p><p>This master thesis work investigates induction regulators as control devices for active power flow in a transmission system. A small change in angle of the rotor affects both the amplitude and the phase of the voltage. The magnetic coupling in the induction regulator can be controlled by changing the permeability of a thermo magnet

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23

Kumbale, Murali. "Bulk transmission system reliability analysis of protection and control groups." Thesis, Georgia Institute of Technology, 1996. http://hdl.handle.net/1853/13840.

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24

Sweeney, Dennis G. "Adaptive power control as a fade countermeasure on satellite links." Diss., Virginia Tech, 1993. http://hdl.handle.net/10919/39716.

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25

Tavakoli-Bina, Mohammad. "The bootstrap variable inductance : a new FACTS controller for AC power systems." Thesis, University of Surrey, 2001. http://epubs.surrey.ac.uk/1043/.

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26

Törnqvist, David. "Transmission Timing in WCDMA terminals." Thesis, Linköping University, Department of Electrical Engineering, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1592.

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<p>Power control is one of the technologies used to utilize the radio resources as efficient as possible in WCDMA. The transmission power is adjusted to transmit with the lowest power level possible while the required received signal quality is maintained. Since there are large variation in channel quality over time, the power has to be adjusted to compensate for these variations. During moments of bad channel conditions a high transmission power has to be used which will to a greater extent interfere with other users in the system. </p><p>To solve this problem a concept called transmission ti

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27

Kalyani, Radha Padma. "A nonlinear optimization approach for UPFC power flow control and voltage security." Diss., Rolla, Mo. : University of Missouri-Rolla, 2007. http://scholarsmine.mst.edu/thesis/pdf/Kalyani_completeThesis_09007dcc80438f59.pdf.

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Thesis (Ph. D.)--University of Missouri--Rolla, 2007.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed November 29, 2007) Includes bibliographical references.

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28

Babazadeh, Davood. "Distributed Control of HVDC Transmission Grids." Doctoral thesis, KTH, Elkraftteknik, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-202753.

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Recent issues such as priority access of renewable resources recommended by European energy directives and increase the electricity trading among countries lead to new requirements on the operation and expansion of transmission grids. Since AC grid expansions are limited by legislative issues and long distance transmission capacity, there is a considerable attention drawn to application of HVDC transmission grids on top of, or in complement to, existing AC power systems. The secure operation of HVDC grids requires a hierarchical control system. In HVDC grids, the primary control action to deal

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29

Liu, Jun Yong. "Modelling and control of united power flow controller for reinforcement of transmission systems." Thesis, Brunel University, 1997. http://bura.brunel.ac.uk/handle/2438/5225.

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The work involved in the thesis is concentrated on modelling and control of UPFC. The overall objective is to provide effective methods and tools for assessing the impact of UPFC in the reinforcement of transmission systems. The thesis clarifies modelling and control of UPFC into several subproblems, in which the associated models, algorithms and control strategies of UPFC have been systematically reviewed. An electromagnetic transient prototype model of the UPFC has been set up by using its detailed power electronic device as well as its internal closed-loop controller. The problems encounter

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30

Aragüés, Peñalba Mònica. "Operation and control of transmission systems for offshore wind power plants." Doctoral thesis, Universitat Politècnica de Catalunya, 2016. http://hdl.handle.net/10803/393893.

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This thesis deals with grid integration of oshore wind power plants through HVDC (High Voltage Direct Current) or HVAC (High Voltage Alternating Current) transmission . The behaviour of wind farms and their transmission systems in normal operation and under faults is analyzed. On the eld of HVDC transmission , a control scheme based on an optimum voltage algorithm is proposed and compared to voltage droop control. The dierences between the proposed scheme and droop control in terms of losses are analyzed, in steady state as well as dynamically. This new control scheme is enhanced, being able t

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31

Xiao, Shuo Electrical Engineering &amp Telecommunications Faculty of Engineering UNSW. "Transmission power control in body-wearable sensor devices for healthcare monitoring." Publisher:University of New South Wales. Electrical Engineering & Telecommunications, 2008. http://handle.unsw.edu.au/1959.4/41104.

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Emerging body-wearable sensor devices for continuous health monitoring are severely energy constrained and yet required to offer high communication reliability under fluctuating channel conditions. This thesis aims at investigating the opportunities and challenges in the use of dynamic radio transmit power control for prolonging the lifetime of such devices. We first present extensive empirical evidence that the wireless link quality can change rapidly in body area networks, and a fixed transmit power results in either wasted energy (when the link is good) or low reliability (when the link is

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32

Koh, Yong-Khiang. "Prediction and control of vibrational power transmission between coupled structural systems." Thesis, University of Southampton, 1992. https://eprints.soton.ac.uk/428197/.

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33

Nazir, Mohammad Nawaf. "Control of Power Flow in Transmission Lines using Distributed Series Reactors." Thesis, Virginia Tech, 2015. http://hdl.handle.net/10919/52978.

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Distributed Series Reactors (DSRs) can be used to control power flow to more fully utilize the capacity of a transmission network, delaying investment in new transmission lines. In this study the IEEE 39 bus standard test system is modified to a 3-phase, unbalanced model consisting of 230 kV, 345 kV and 500 kV lines, where lines of different voltage run in parallel. This model is used to study load growth and the effect of adding DSRs to alleviate resulting overloads, and in particular to alleviate overloads on lines of different voltage running in parallel. The economic benefit of adding DSR

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34

Fazzini, Enrico. "frequency-diverse arrays design and control for accurate wireless power transmission." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2020. http://amslaurea.unibo.it/21111/.

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The frequency diversity of the antennas in the radiating system is a powerful strategy, that can lead a big improvement on wireless power transmission applications, but its characterization is merely theoretical in the literature. This work offers a deep and critical numerical analysis of frequency-diverse arrays and shows the advantages of the family with logarithmic distribution of the frequency for radio-frequency energy focusing goals. For the first time, these systems are analyzed through a Harmonic Balance-based simulation combined with the full-wave description of the array made of eigh

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35

CAMPANER, RICCARDO. "VOLTAGE CONTROL SYSTEMS FOR TRANSMISSION AND DISTRIBUTION GRIDS." Doctoral thesis, Università degli Studi di Trieste, 2017. http://hdl.handle.net/11368/2908145.

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The research activities carried out for the present PhD dissertation concerns the increasingly evident and widespread set of problems related to the remarkable levels of distributed generation (DG) connected to electric networks. It has also included the proposal of applicable and performing control techniques, suitable to allow new connection of Renewable Energy Sources (RES) generators, able to assure adequate reliability and quality of service through the integration of electric networks with Information and Communication Technology (ICT) (process also known with the term “Smart Grid”). The

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36

Omran, Shaimaa AbdAlla Ezz Ibrahim. "Control Applications and Economic Evaluations of Distributed Series Reactors in Unbalanced Electrical Transmission Systems." Diss., Virginia Tech, 2015. http://hdl.handle.net/10919/52240.

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An important issue in today's power system is the need to analyse and determine the adequacy of transmission capacity. There is a need for approaches to increase transmission system capacity without construction of new transmission facilities, all while assuring secure operation of the grid. New technologies can enhance efficiency and reliability, increase capacity utilization, enable more rapid response to contingencies, and increase flexibility in controlling power flows on transmission lines. Distributed Series Reactor (DSR) control is a new smart grid technology that can be applied to cont

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37

Johal, Harjeet. "Distributed series reactance a new approach to realize grid power flow control /." Diss., Atlanta, Ga. : Georgia Institute of Technology, 2008. http://hdl.handle.net/1853/26713.

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Thesis (Ph.D)--Electrical and Computer Engineering, Georgia Institute of Technology, 2009.<br>Committee Chair: Divan, Deepakraj M.; Committee Member: Begovic, Miroslav M.; Committee Member: Brown, Marilyn; Committee Member: Harley, Ronald G.; Committee Member: Wolf, Wayne H. Part of the SMARTech Electronic Thesis and Dissertation Collection.

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38

Farsangi, Malihe Maghfouri. "Robust control of flexible AC transmission systems for damping power system oscillations." Thesis, Brunel University, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.269400.

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39

Saenger, Zetina Siegfried Hans. "Optimal control with Kane mechanics applied to a hybrid power split transmission." Göttingen Sierke, 2009. http://d-nb.info/1000116298/34.

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40

Mori, Kazuo, Takehiko Kobayashi, Takaya Yamazato, and Akira Ogawa. "Transmission Power Control for Downlinks in CDMA/Shared-TDD Cellular Packet Systems." IEEE, 2000. http://hdl.handle.net/2237/7805.

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Akinsolu, Ojuetimi Ifedayo. "A design of variable transmission power control for wireless ad-hoc network." Master's thesis, University of Cape Town, 2015. http://hdl.handle.net/11427/13559.

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Includes bibliography.<br>Wireless Ad-hoc Network has emanated to be a promising network paradigm that can handle last mile technology due to unprecedented growth of internet users. This network is promising because it extends network to remote areas such as congested environments, rural environments etc. It is known that nodes involved in Wireless Ad-hoc Network rely on battery energy as their source of power. Energy consumption has become one of the major challenges experienced in Wireless Ad-hoc Network, which must be properly tackled. This could be traced to the effect of transmission powe

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42

Muqattash, Alaa Hilal. "Medium Access Control and Adaptive Transmission Techniques in Wireless Networks." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1359%5F1%5Fm.pdf&type=application/pdf.

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Mendez, Jose A. (Jose Antonio Mendez Alcazar). "Control signal transmission through power supply cables of a 3-phase PWM motor." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/37203.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006.<br>Includes bibliographical references (p. 147-148).<br>Modem process control systems often employ accurate position or speed controlled PWM motors, which require feedback data for the drive control loop. Current methods require an independently shielded cable for feedback data transmission. This is due to the fact that high-voltage PWM signals could easily interfere with the feedback signals, which are typically one or more orders of magnitude smaller than typical PWM signals.

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Ashton, Phillip Michael. "Exploiting phasor measurement units for enhanced transmission network operation and control." Thesis, Brunel University, 2014. http://bura.brunel.ac.uk/handle/2438/9063.

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In order to achieve binding Government targets towards the decarbonisation of the electricity network, the GB power system is undergoing an unprecedented amount of change. A series of new technologies designed to integrate massive volumes of renewable generation, predominantly in the form of offshore wind, asynchronously connecting to the periphery of the transmission system, are transforming the requirements of the network. This displacement of traditional thermal generation is leading to a significant reduction in system inertia, thus making the task of system operation more challenging. It

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45

Kirawanich, Phumin. "Fuzzy logic control for an active power line conditioner /." free to MU campus, to others for purchase, 2002. http://wwwlib.umi.com/cr/mo/fullcit?p3060114.

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Makido, Satoshi, Takaya Yamazato, Masaaki Katayama, and Akira Ogawa. "Hierarchical Transmission of Huffman Code Using Multi-Code/Multi-Rate DS/SS Modulation with Appropriate Power Control." IEICE, 1998. http://hdl.handle.net/2237/7208.

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Kong, Dechao. "Advanced HVDC systems for renewable energy integration and power transmission : modelling and control for power system transient stability." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4217/.

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The first part is concerned with dynamic aggregated modelling of large offshore wind farms and their integration into power systems via VSC-HVDC links. The dynamic aggregated modelling of offshore wind farms including WT-DFIGs and WT-PMSGs are proposed to achieve effective representations of wind farms in terms of computational time and simulation accuracy for transient stability analysis. Modelling and control of VSC-HVDC systems for integration of offshore wind farms are investigated. Comparisons of two control schemes of rectifier-side converter are carried out to evaluate their dynamic per

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48

Das, Debrup. "Dynamic control of grid power flow using controllable network transformers." Diss., Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/43739.

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The objective of the research is to develop a cost-effective, dynamic grid controller called the controllable network transformer (CNT) that can be implemented by augmenting existing load tap changing (LTC) transformers with an AC-AC converter. The concept is based on using a fractionally rated direct AC-AC converter to control the power through an existing passive LTC. By using a modulation strategy based on virtual quadrature sources (VQS), it is possible to control both the magnitude and the phase angle of the output voltage of the CNT without having any inter-phase connections. The CNT arc

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49

Nguyen, Van Liem. "Modeling and control coordination of power systems with FACTS devices in steady-state operating mode." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2009.0036.

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This thesis is devoted to the development of new models for a recently-implemented FACTS (flexible alternating current transmission system) device, the unified power flow controller (UPFC), and the control coordination of power systems with FACTS devices in steady-state operating mode. The key objectives of the research reported in the thesis are, through online control coordination based on the models of power systems having FACTS devices, those of maximising the network operational benefit and restoring system static security following a disturbance or contingency. Based on the novel concept

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50

Chen, Yaow-Ming. "Active power line conditioner with neural network control /." free to MU campus, to others for purchase, 1997. http://wwwlib.umi.com/cr/mo/fullcit?p9841132.

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