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Rozprawy doktorskie na temat „STATIC VAR SYSTEM”

Autor: Grafiati

Data publikacji: 11 września 2023

Data aktualizacji: 25 lipca 2025

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1

Ruckdaschel, James David. "Harmonic Analysis of a Static VAR Compensated Mixed Load System." DigitalCommons@CalPoly, 2009. https://digitalcommons.calpoly.edu/theses/82.

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As power electronic based controllers and loads become more prevalent in power systems, there is a growing concern about how the harmonics generated by these controllers and loads affect the power quality of the system. One widely used power electronic based load is the Variable Frequency Drive (VFDs) used to vary the speed of an induction motor; whereas a common example of a power electronic based controller used in power systems is the Static VAR Compensator (SVC) for improving a system’s power factor. In this thesis, the harmonic content and overall performance of a system including both a

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Silva, Aguinaldo Silveira e. "Placement and control of static compensators for power system stability." Thesis, University of Manchester, 1990. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.311620.

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Mandali, Anusree. "Voltage Regulation Control on a Power System with Static Var Compensator." Cleveland State University / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=csu1504863882578828.

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Zhang, Zhengwen. "Fast response static var generator for improving the power system performance of an electric arc furnace (EAF)." Thesis, Aston University, 2002. http://publications.aston.ac.uk/11836/.

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Cascaded multilevel inverters-based Static Var Generators (SVGs) are FACTS equipment introduced for active and reactive power flow control. They eliminate the need for zigzag transformers and give a fast response. However, with regard to their application for flicker reduction in using Electric Arc Furnace (EAF), the existing multilevel inverter-based SVGs suffer from the following disadvantages. (1) To control the reactive power, an off-line calculation of Modulation Index (MI) is required to adjust the SVG output voltage. This slows down the transient response to the changes of reactive powe

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5

Habtay, Yehdego Tekeste. "Advanced static VAr compensator for direct on line starting of induction motors in an interconnected offshore power system." Thesis, Heriot-Watt University, 2002. http://hdl.handle.net/10399/371.

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Ahmed, Sheikh. "PMU based PSS and SVC fuzzy controller design for angular stability analysis." Thesis, Kansas State University, 2015. http://hdl.handle.net/2097/20547.

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Master of Science<br>Department of Electrical and Computer Engineering<br>Shelli Starrett<br>Variability in power systems is increasing due to pushing the system to limits for economic purposes, the inclusion of new energy sources like wind turbines and photovoltaic, and the introduction of new types of loads such as electric vehicle chargers. In this new environment, system monitoring and control must keep pace to insure system stability and reliability on a wide area scale. Phasor measurement unit technology implementation is growing and can be used to provide input signals to new types of

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7

Banejad, Mahdi. "Identification of damping contribution from power system controllers." Thesis, Queensland University of Technology, 2004. https://eprints.qut.edu.au/15851/1/Mahdi_Banejad_Thesis.pdf.

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With the growth of power system interconnections, the economic drivers encourage the electric companies to load the transmission lines near their limits, therefore it is critical to know those limits well. One important limiting issue is the damping of inter-area oscillation (IAO) between groups of synchronous machines. In this Ph.D. thesis, the contribution of power system components such as load and static var compensators (SVC) that affect the IAO of the power system, are analysed. The original contributions of this thesis are as follows: 1-Identification of eigenvalues and mode shapes of t

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Banejad, Mahdi. "Identification of Damping Contribution from Power System Controllers." Queensland University of Technology, 2004. http://eprints.qut.edu.au/15851/.

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With the growth of power system interconnections, the economic drivers encourage the electric companies to load the transmission lines near their limits, therefore it is critical to know those limits well. One important limiting issue is the damping of inter-area oscillation (IAO) between groups of synchronous machines. In this Ph.D. thesis, the contribution of power system components such as load and static var compensators (SVC) that affect the IAO of the power system, are analysed. The original contributions of this thesis are as follows: 1-Identification of eigenvalues and mode shapes of t

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9

Goldoost, Soloot Reza. "Wide-area damping control through inverse filtering technique." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/95937/4/Reza%20Goldoost%20Soloot_Thesis.pdf.

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This thesis proposes a new wide-area controller for enhancing the stability of power systems by damping inter-area oscillations. The obtained controller is a new nonlinear controller that accomplishes the task by using data from PMUs employed throughout the network. The controller improves the damping of inter-area oscillations by providing a supplementary control input for several controllable devices such as excitation systems of synchronous generators and Static Var Compensators. The novel nonlinear inverse filtering controller is developed and investigated in different network configuratio

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10

Li, Tianya. "Electromechanical wave propagation phenomenon and its control implications in power systems." Thesis, Queensland University of Technology, 2016. https://eprints.qut.edu.au/95962/1/Tianya_Li_Thesis.pdf.

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This thesis investigates advanced control methods and strategies to enhance the transient stability of a power system which is affected by the electromechanical wave propagation phenomenon. The characteristics of the travelling wave phenomenon and its impact on system separation during first swing are investigated in detail. This thesis identifies four innovative control implications for power system stability and proposes an improved method to enhance power system transient stability. By designing better control of existing equipment, this research achieves increased maximum power transfer un

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11

Davies, Mark. "Control systems for static VAR compensators." Thesis, Staffordshire University, 1997. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.361648.

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12

Fernando, Warnakulasuriya A. M. "Power quality improvement in power systems using a static VAR compensator." Thesis, California State University, Long Beach, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10638886.

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<p> The primary purpose of a power system is to transform energy from one of its naturally obtainable forms into electricity, and then supply it through grids to points of consumption. With the increasing demand for electricity, more reliable methods are required to keep the quality of power in the desired range. This paper focuses on the impacts that a static var compensator (SVC) has on power quality. A two-area power system was used to demonstrate the power quality enhancements of a SVC, and simulations were done on the Real Time Digital Simulator (RTDS) and Electrical Transients Analyzer P

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13

Liu, Zhiqiang. "Static synchronous parallel compensation of var flow in power distribution systems." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0020/MQ55264.pdf.

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Subsingha, Wanchai. "Analysis and control of the advanced static var compensator for normal and abnormal operating conditions in power systems." Thesis, Northumbria University, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.416348.

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15

Tukur, Ahmed Gidado. "Reducing Airflow Energy Use in Multiple Zone VAV Systems." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1467872641.

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16

Hadjikypris, Melios. "Supervisory control scheme for FACTS and HVDC based damping of inter-area power oscillations in hybrid AC-DC power systems." Thesis, University of Manchester, 2016. https://www.research.manchester.ac.uk/portal/en/theses/supervisory-control-scheme-for-facts-and-hvdc-based-damping-of-interarea-power-oscillations-in-hybrid-acdc-power-systems(cc03b44a-97f9-44ec-839f-5dcbcf2801f1).html.

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Modern interconnected power systems are becoming highly complex and sophisticated, while increasing energy penetrations through congested inter-tie lines causing the operating point approaching stability margins. This as a result, exposes the overall system to potential low frequency power oscillation phenomena following disturbances. This in turn can lead to cascading events and blackouts. Recent approaches to counteract this phenomenon are based on utilization of wide area monitoring systems (WAMS) and power electronics based devices, such as flexible AC transmission systems (FACTS) and HVDC

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17

Jen, Ching Kuo, and 任慶國. "A Study of Control System for Static Var Compensators." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/48254840057757833788.

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18

LIU, CHUAN-SHANG, and 劉傳聖. "Design of power system stabilizers and static VAR compensators." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/08314311556450270702.

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19

CHANG, TIEN CHIA, and 張添嘉. "Stability Analysis of the Cogeneration System with Static Var Compensators." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/47446261941857811320.

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碩士<br>國立中山大學<br>電機工程研究所<br>83<br>This thesis develops the control strategy, proper installation location and parameter setting of the SVC to improve the stability of the cogeneration facility. In this thesis, the China Steel Corporation (CSC) with many cogeneration units is selected for the stability problems study. The power system of CSC always suffers a great voltage fluctuation due to the operation of rolling mills. To solve this problem, the SVC with voltage as a feedback signal is ass

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20

ZHEN, JIN-XING, and 鄭進興. "Design of adaptive power system stabilizers and static VAR compensators." Thesis, 1987. http://ndltd.ncl.edu.tw/handle/05680691572422469991.

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21

Chen, Chun-Kai, and 陳淳楷. "Static Var Compensator for Improving Shipboard Electric Power System Stability." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/16029838310927628562.

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碩士<br>國立海洋大學<br>電機工程學系<br>91<br>The shipboard electric power system is an independent system of which the required reliability is higher than that of the seashore power system. Because of the frequent load variation, the generating unit shall have fast and stable responding capability. Proper application of compensating devices will improve the damping of electromechanical oscillations and thus the stability of the system. This thesis studies a practical shipboard electric power system, with emphasis placed on investigating the effect of the static var compensator (SVC) on the syst

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22

WU, GI-RUI, and 吳啟瑞. "Design of adaptive power system stabilizers and static var controllers." Thesis, 1988. http://ndltd.ncl.edu.tw/handle/85673715315215964419.

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23

Shih-Wei, Sun, and 孫士偉. "Ehancement of Transmission System Stability by Applying Static Var Compensator." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/36911736827233227208.

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碩士<br>南台科技大學<br>電機工程系<br>98<br>ABSTRACT The main purpose of this thesis is to investigate the power system voltage stability and transient stability analysis. In the thesis, the Taiwan power system is selected for study. Based on the peak operation condition of Taiwan power system, the P-V and Q-V curves can be obtained by executing the voltage stability analysis in various N-1 and N-2 transmission line tripping contingencies. The P-V curve can denote the voltage collapse point and transfer power limit while the Q-V curve can identify the reactive power margin of the transmission lines. By

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24

陳俊昌. "Static Var Compensator and Battery Energy Storage System for Shipboard Electirc Power System Stability." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/80152075190708545361.

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碩士<br>國立海洋大學<br>電機工程學系<br>90<br>The shipboard electric power system is an independent system of which the required reliability is higher than that of the seashore power system. Because of the frequent load variation, the generating unit shall have fast and stable response. Equipped with properly tuned additional Static Var Compensator will improve the damping of electromechanical oscillations in power system. Battery Energy storage system can provide simultaneously control of both its active and reactive power to improve power system operation and control. The main purpose of this

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25

Lee, maw ming, and 李茂銘. "The Effect of Load Models on Static Var Compensators in Taiwan Power System." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/15016883956890909500.

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碩士<br>國立臺北科技大學<br>電機工程系碩士班<br>90<br>The Taiwan power system is an isolating power system and unable to get support from other systems when the electrical power supply is insufficient. In the past few years, the Taiwan Power Corporation has dedicated to build the third extra voltage transmission lines to solve the insufficient problem of power supply. However, for the location of field unavailability that result in the construction delaying, the expansion of power flow capacity sluggish and the network jam condition is more serious than before. Only improving the existing power generators and t

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26

BANSAL, ANKITA. "A COMPARITIVE STUDY OF AUXILIARY SIGNALS OF STATIC VAR SYSTEM FOR DAMPING SUBSYNCHRONOUS RESONANCE." Thesis, 2013. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15767.

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Transmission systems are being restructured to provide increased power transfer capability to accommodate a much wider range of possible generation patterns, due to the present pace of power system. The power transfer in the integrated power system is impeded by transient stability, voltage stability, and small signal stability. To enhance the power transfer capability, Series compensation has been widely used. The fast acting power electronic converters, Flexible AC Transmission System (FACTS) devices with their equally fast and efficient controlling capabilities are becoming the pillars of s

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27

Huang, Jian-Long, and 黃健龍. "Design of a Grey Decision Prediction Controller for Induction Generator System with Static VAR Compensator." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/ysv63d.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>93<br>This thesis integrates the inverting power supply system and the Static VAR Compensator (SVC) to form an inverting power supply system for induction generator with SVC. The advantages of induction generator includes lower cost, simple structure, high power-weight ratio, protection ability of over load and short circuit, so that the induction generators are widely used in smaller capacity power station. However, there are drawbacks of the conventional induction generators, the output voltage and frequency are easily and instantaneously affected by rotation

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28

展子傑. "Time-Frequency and Power-Voltage Curve Analyses for Voltage Stability of Power System with Static Var Compensation." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/48512002949101537670.

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29

Kashyap, Ravi Bhushan. "Design of controllers associated with static VAR compensators for damping of low frequency oscillations in a power system." Thesis, 1993. http://spectrum.library.concordia.ca/2961/1/MM84663.pdf.

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This thesis is concerned with the development of a supplementary controller associated with a Static Var Compensator for damping of low-frequency oscillations (0.05-2.0 Hz) which are normally present in power systems. The objective of this thesis is to demonstrate that with the use of load modulation, damping of intermachine and system oscillation can be increased. The development of supplementary controllers requires that a simplified model of the system be available. In large systems this can be a difficult process. In this thesis a simplified approach is presented. It is based on fast four

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30

Mazur, Ronald Wayne. "Damping of power system harmonic resonances using firing angle modulation of the thyristor controlled reactor of a static var compensator." 1989. http://hdl.handle.net/1993/16969.

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Chen, Zhao Hong, and 陳昭浤. "Application of static var compensators to distribution systems." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/67470986394600731059.

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32

Santosh, Kumar A. "Voltage Stability Analysis of Unbalanced Power Systems." Thesis, 2016. http://etd.iisc.ac.in/handle/2005/3065.

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The modern day power system is witnessing a tremendous change. There has been a rapid rise in the distributed generation, along with this the deregulation has resulted in a more complex system. The power demand is on a rise, the generation and trans-mission infrastructure hasn't yet adapted to this growing demand. The economic and operational constraints have forced the system to be operated close to its design limits, making the system vulnerable to disturbances and possible grid failure. This makes the study of voltage stability of the system important more than ever. Generally, voltage stab

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Santosh, Kumar A. "Voltage Stability Analysis of Unbalanced Power Systems." Thesis, 2016. http://hdl.handle.net/2005/3065.

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The modern day power system is witnessing a tremendous change. There has been a rapid rise in the distributed generation, along with this the deregulation has resulted in a more complex system. The power demand is on a rise, the generation and trans-mission infrastructure hasn't yet adapted to this growing demand. The economic and operational constraints have forced the system to be operated close to its design limits, making the system vulnerable to disturbances and possible grid failure. This makes the study of voltage stability of the system important more than ever. Generally, voltage stab

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34

Kimla, John. "Optimized Fan Control In Variable Air Volume HVAC Systems Using Static Pressure Resets: Strategy Selection and Savings Analysis." Thesis, 2009. http://hdl.handle.net/1969.1/ETD-TAMU-2009-12-7332.

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The potential of static pressure reset (SPR) control to save fan energy in variable air volume HVAC systems has been well documented. Current research has focused on the creation of reset strategies depending on specific system features. As the commissioning process has begun to require the prediction of savings, knowledge of the extent to which various SPR control strategies impact fan energy has become increasingly important. This research aims to document existing SPR control strategies and utilize building data and simulation to estimate fan energy use. A comprehensive review of the litera

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Ravi, Kumar B. "Development Of Algorithms For Power Quality Improvements In Distribution Systems." Thesis, 2004. https://etd.iisc.ac.in/handle/2005/1170.

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Ravi, Kumar B. "Development Of Algorithms For Power Quality Improvements In Distribution Systems." Thesis, 2004. http://etd.iisc.ernet.in/handle/2005/1170.

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Von, Landsberg John Lodewyk. "'n Ontwikkelingsperspektief van vakleerlingskappe in Suid-Afrika : implikasies vir die onderwysstelsel." Diss., 2014. http://hdl.handle.net/10500/18698.

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Text in Afrikaans<br>Hierdie navorsing getiteld 'n Ontwikkelingsperspektief van vakleerlingskappe in Suid-Afrika: implikasies vir die onderwysstelsel ondersoek die wortels van die vakleerlingskap stelsel sedert antieke tye, deur die koloniale tydperk in Suid-Afrika, die "armblankevraagstuk"1922-1960, voor-demokrasie 1950-1980, 1980-1993 en post-demokrasie 1994-2014. Die studie konsentreer op die kronologiese verloop van gebeure wat gelei het tot die formalisering van die vakleerlingskapstelsel in Suid-Afrika in 1922 asook die evolusie tot in sy huidige vorm. Spesifieke aandag is geskenk a

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38

Garbers, Rachel. "An e-learning instructional design framework for mobile devices in Africa." Diss., 2018. http://hdl.handle.net/10500/25531.

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English text, with summaries in English, Afrikaans and Zulu<br>This study aims to propose an e-learning framework for mobile devices in Africa to help improve enrolment rates and education standards in the FET (Further Education and Training) phase. The study is qualitative in nature and employs document analysis as main research method. An overview of the South African education context with supporting statistical data to motivate why an e-learning alternative is crucial for improving South African and African education is provided. The literature review includes a descriptive analysis of 7 e

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