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Dissertations / Theses on the topic 'Power Oscillation Damping Controller'

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Published: 6 September 2023
Last updated: 26 July 2025

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1

Gianto, Rudy. "Coordination of power system controllers for optimal damping of electromechanical oscillations." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2008. http://theses.library.uwa.edu.au/adt-WU2009.0056.

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This thesis is devoted to the development of new approaches for control coordination of PSSs (power system stabilisers) and FACTS (flexible alternating current transmission system) devices for achieving and enhancing small-disturbance stability in multi-machine power systems. The key objectives of the research reported in the thesis are, through optimal control coordination of PSSs and/or FACTS devices, those of maintaining satisfactory power oscillation damping and secure system operation when the power system is subject to persisting disturbances in the form of load demand fluctuations and s
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2

You, Ruhua. "Controller design for PSS and FACTS devices to enhance damping of low-frequency power oscillations in power systems." Diss., Montana State University, 2006. http://etd.lib.montana.edu/etd/2006/you/YouR0506.pdf.

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3

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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4

Johansson, Nicklas. "Aspects on Dynamic Power Flow Controllers and Related Devices for Increased Flexibility in Electric Power Systems." Doctoral thesis, KTH, Elektriska maskiner och effektelektronik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37823.

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This thesis studies different aspects of Flexible AC Transmission System (FACTS) devices which are used to improve the power transfer capability and increase the controllability in electric power systems. In the thesis, different aspects on the usage and control of Dynamic Power Flow Controllers (DPFC) and related FACTS devices are studied. The DPFC is a combination of a Phase Shifting Transformer (PST) and a Thyristor Switched Series Capacitor (TSSC)/Thyristor Switched Series Reactor (TSSR). The thesis proposes and studies a new method, the Ideal Phase-Shifter (IPS) method, for selection and
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5

Johansson, Nicklas. "Control of Dynamically Assisted Phase-shifting Transformers." Licentiate thesis, Stockholm : Elektrotekniska system, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4653.

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6

Martins, Luís Fabiano Barone [UNESP]. "Aplicação de algoritmos bio-inspirados na parametrização dos controladores suplementares de amortecimento e dispositivo FACTS UPFC." Universidade Estadual Paulista (UNESP), 2017. http://hdl.handle.net/11449/151487.

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Submitted by LUIS FABIANO BARONE MARTINS null (luis_barone@ig.com.br) on 2017-08-30T14:29:52Z No. of bitstreams: 1 tese-luis-fabiano-barone-martins.pdf: 3400963 bytes, checksum: 6361e93ee21ab8eb5a35cb9dd7d0bd28 (MD5)<br>Approved for entry into archive by Luiz Galeffi (luizgaleffi@gmail.com) on 2017-08-30T17:52:14Z (GMT) No. of bitstreams: 1 martins_lfb_dr_ilha.pdf: 3400963 bytes, checksum: 6361e93ee21ab8eb5a35cb9dd7d0bd28 (MD5)<br>Made available in DSpace on 2017-08-30T17:52:14Z (GMT). No. of bitstreams: 1 martins_lfb_dr_ilha.pdf: 3400963 bytes, checksum: 6361e93ee21ab8eb5a35cb9dd7d0bd28 (
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Martins, Luís Fabiano Barone. "Aplicação de algoritmos bio-inspirados na parametrização dos controladores suplementares de amortecimento e dispositivo FACTS UPFC /." Ilha Solteira, 2017. http://hdl.handle.net/11449/151487.

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Orientador: Percival Bueno de Araujo<br>Resumo: Neste trabalho são apresentados quatro métodos de otimização bio-inspirados, Colônia de Abelhas Artificiais, Otimização por Enxame de Partículas, Algoritmo dos Vagalumes e um híbrido aqui denominado por Bee – PSO, que combina particularidades dos outros três. Estes métodos são utilizados no ajuste coordenado dos parâmetros dos controladores Proporcional-Integral e Suplementares de Amortecimento (Estabilizadores de Sistemas de Potência e o conjunto Unified Power Flow Controller – Power Oscillation Damping). O objetivo é inserir amortecimento adici
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8

Maherani, Mahshid [Verfasser], and Gerhard [Akademischer Betreuer] Krost. "Design of Fixed Order Nonsmooth Robust H∞ MIMO Wide Area Controller for Damping of Inter Area Oscillations in Power Grids / Mahshid Maherani ; Betreuer: Gerhard Krost." Duisburg, 2019. http://d-nb.info/1200352807/34.

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9

Athanasius, Germane Information Technology &amp Electrical Engineering Australian Defence Force Academy UNSW. "Robust decentralised output feedback control of interconnected grid system." Awarded by:University of New South Wales - Australian Defence Force Academy, 2008. http://handle.unsw.edu.au/1959.4/39591.

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The novel contribution of the thesis is the design and implementation of decentralised output feedback power system controllers for power oscillation damping (POD) over the entire operating regime of the power system. The POD controllers are designed for the linearised models of the nonlinear power system dynamics. The linearised models are combined and treated as parameter varying switched systems. The thesis contains novel results for the controller design, bumpless switching and stability analysis of such switched systems. Use of switched controllers against the present trend of having s
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10

Fortes, Elenilson de Vargas [UNESP]. "Aplicação do algoritmo genético de Chu-Beasley especializado no ajuste dos parâmetros dos controladores suplementares e dispositivo FACTS IPFC." Universidade Estadual Paulista (UNESP), 2016. http://hdl.handle.net/11449/144513.

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Submitted by ELENILSON DE VARGAS FORTES null (vargasfortes@yahoo.com.br) on 2016-10-27T22:01:08Z No. of bitstreams: 1 Tese.pdf: 4090366 bytes, checksum: c721654fbc082e717b79dc074adcbfa0 (MD5)<br>Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2016-11-03T18:32:27Z (GMT) No. of bitstreams: 1 fortes_ev_dr_ilha.pdf: 4090366 bytes, checksum: c721654fbc082e717b79dc074adcbfa0 (MD5)<br>Made available in DSpace on 2016-11-03T18:32:27Z (GMT). No. of bitstreams: 1 fortes_ev_dr_ilha.pdf: 4090366 bytes, checksum: c721654fbc082e717b79dc074adcbfa0 (MD5)
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Fortes, Elenilson de Vargas. "Aplicação do algoritmo genético de Chu-Beasley especializado no ajuste dos parâmetros dos controladores suplementares e dispositivo FACTS IPFC /." Ilha Solteira, 2016. http://hdl.handle.net/11449/144513.

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Orientador: Percival Bueno de Araujo<br>Resumo: Este trabalho apresenta o Algoritmo Genético de Chu-Beasley Especializado para realizar o ajuste coordenado dos parâmetros de controladores Proporcional-Integral e suplementares de amortecimento (Estabilizadores de Sistemas de Potência e Interline Power Flow Controller - Power Oscillation Damping) em sistemas elétricos de potência multimáquinas. O objetivo principal deste trabalho é inserir amortecimento adicional às oscilações eletromecânicas de baixa frequência classificadas como local e interárea. Para representar o sistema, é utilizado o Mode
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12

Miotto, Ednei Luiz. "Aplicação do algoritmo bioinspirado Novel Bat Algorithm na parametrização dos controladores suplementares de amortecimento e dispositivo FACTS GUPFC." Ilha Solteira, 2018. http://hdl.handle.net/11449/157493.

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Orientador: Percival Bueno de Araujo<br>Resumo: Este trabalho apresenta o Novel Bat Algorithm com uma nova técnica para realizar o ajuste coordenado dos parâmetros de controladores suplementares de amortecimento (Estabilizadores de Sistemas de Potência e do conjunto Generalized Unified Power Flow Controller – Power Oscillation Damping) em sistemas elétricos de potência multimáquinas. O objetivo principal é inserir amortecimento adicional aos modos oscilatórios de baixa frequência e, consequentemente, garantir a estabilidade do sistema elétrico frente a pequenas perturbações. Para representar o
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13

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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14

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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15

Cai, L. Erlich J. "Fuzzy Coordination of FACTS Controllers for Damping Power System Oscillations, MEPS Conference 2002." Gerhard-Mercator-Universitaet Duisburg, 2003. http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-04142003-130952/.

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This paper concerns the optimization and coordination of the conventional FACTS (Flexible AC Transmission Systems) damping controllers in multi-machine power system. Firstly, the parameters ofFACTS controller are optimized. Then, a hybrid fuzzy logic controller for the coordination of FACTS controllers is presented. This coordination method is well suitable to series connected FACTS devices like UPFC, TCSC etc. in damping multi-modal oscillations in multi-machine power systems. Digital simulations of a multi-machine power system subjected to a wide variety of disturbances and different structu
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16

Arif, Jawad. "Nonlinear self-tuning control for power oscillation damping." Thesis, Imperial College London, 2011. http://hdl.handle.net/10044/1/7035.

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Power systems exhibit nonlinear behavior especially during disturbances, necessitating the application of appropriate nonlinear control techniques. Lack of availability of accurate and updated models for the whole power system adds to the challenge. Conventional damping control design approaches consider a single operating condition of the system, which are obviously simple but tend to lack performance robustness. Objective of this research work is to design a measurement based self-tuning controller, which does not rely on accurate models and deals with nonlinearities in system response. Desi
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17

Zhang, Pei. "Co-ordination and control of power system damping controllers to enhance small signal stability." Thesis, Imperial College London, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.321949.

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18

Cordero, Bautista Luis Gustavo. "Aplicação do algoritmo genético adaptativo com hipermutação no ajuste dos parâmetros dos controladores suplementares e dispositivo FACTS IPFC /." Ilha Solteira, 2019. http://hdl.handle.net/11449/182292.

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Orientador: Percival Bueno de Araujo<br>Resumo: As perturbações ou variações de carga produzem oscilações eletromecânicas que devem ser amortecidas o mais rápido possível para garantir confiabilidade e estabilidade da rede. Neste trabalho apresenta-se uma análise do dispositivo FACTS Interline Power Flow Controller (IPFC) e o controlador Proporcional Integral (PI) no gerenciamento dos fluxos de potência e a influência dos Estabilizadores do Sistema de Potência (ESP) e do IPFC Power Oscillation Damping (POD) sobre a estabilidade do sistema elétrico de potência. Neste trabalho enfoca-se nos estu
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19

Hansson, Johan. "Evaluation of Power Oscillation Damping in the Nordic Grid Using HVDC." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-292745.

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With a rapid transition towards renewable energy sources and increasing demand for electricity, we are facing major changes in the electricity grid. With increased congestion and reduction of inertia the grid is becoming more sensitive to rotor angle stability issues, such as the stability of interarea modes or power oscillation damping (POD). This thesis shows that the use of local measurements for POD improvement could lead to reduced transient rotor angle stability. Depending on fault location it is shown that reduction of the first swing is not always feasible, and depending on the control
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20

Björk, Joakim. "Performance Quantification of Interarea Oscillation Damping Using HVDC." Licentiate thesis, KTH, Reglerteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-245223.

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With the transition towards renewable energy, and the deregulation of the electricity market, generation patterns and grid topology are changing. These changes increase the need for transfer capacity. One limiting factor, which sometimes leads to underutilization of the transmission grid, is interarea oscillations. These system-wide modes involve groups of generators oscillating relative to each other and are sometimes hard to control due to their scale and complexity. In this thesis we investigate how high-voltage direct current (HVDC) transmission can be used to attenuate interarea oscillati
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21

Snyder, Aaron Francis. "Inter-Area Oscillation Damping with Power System Stabilizers and Synchronized Phasor Measurements." Thesis, Virginia Tech, 1997. http://hdl.handle.net/10919/35434.

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Low frequency oscillations are detrimental to the goals of maximum power transfer and optimal power system security. A contemporary solution to this problem is the addition of power system stabilizers to the automatic voltage regulators on the generators in the power system. The damping provided by this additional stabilizer provides the means to reduce the inhibiting effects of the oscillations. This thesis is an investigation of the use of synchronized phasor measurements as input signals for power system stabilizers installed on the generators of a two-area, 4-machine test power system. A r
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22

Zou, Xiaolan. "Frequency and Damping Characteristics of Generators in Power Systems." Thesis, Virginia Tech, 2018. http://hdl.handle.net/10919/81937.

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A power system stability is essential for maintaining the power system oscillation frequency within a small and acceptable interval around its nominal frequency. Hence, it is necessary to study and control the frequency for stable operation of a power system by knowing the characteristics within a power system. One approach is to understand the effectiveness of frequency and damping characteristics of generators in power systems. Hence, the simulation analysis of IEEE 118-bus power system is used for this study. The analysis includes theoretical analysis with a mathematical approach and simula
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23

Björk, Erik. "Load Characteristic Influence on Power Oscillation Damping : Case Study on HVDC-interconnected AC-Grids." Thesis, KTH, Skolan för elektroteknik och datavetenskap (EECS), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-235199.

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The increasing share of renewables in the electric grid may have a negative impact on the systemstability to which conventional control methods are insucient. The report focuses on the stabilityof low frequency inter-area modes. Along the development of renewables, power electronics aremore frequently used between the actual load and the grid. Hence the characteristics of the loadsis undergoing a change as well. This report investigates how dierent load characteristics inuencethe damping in the grids. The investigation is performed by a simulation experiment where a modelconsisting of two AC-g
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24

Almutairi, Abdulaziz. "Enhancement of power system stability using wide area measurement system based damping controller." Thesis, University of Manchester, 2011. https://www.research.manchester.ac.uk/portal/en/theses/enhancement-of-power-system-stability-using-wide-area-measurement-system-based-damping-controller(7d98d164-8051-4662-ad18-374620d28a00).html.

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Contemporary power networks are gradually expanding incorporating new sources of electrical energy and power electronic based devices. The major stability issue in large interconnected power systems is the lightly damped interarea oscillations. In the light of growth of their incidents there are increased concerns about the effectiveness of current control devices and control systems in maintaining power system stability. This thesis presents a Wide Area Measurement System (WAMS) based control scheme to enhance power system stability. The control scheme has a hierarchical (two-level) structure
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25

Hasanović, Amer. "A simulation and analysis toolbox for power systems and genetic algorithm based damping controller design." Morgantown, W. Va. : [West Virginia University Libraries], 2001. http://etd.wvu.edu/templates/showETD.cfm?recnum=2173.

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Thesis (M.S.)--West Virginia University, 2001.<br>Title from document title page. Document formatted into pages; contains viii, 73 p. : ill. Includes abstract. Includes bibliographical references (p. 71-73).
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26

Preece, Robin. "A probabilistic approach to improving the stability of meshed power networks with embedded HVDC lines." Thesis, University of Manchester, 2013. https://www.research.manchester.ac.uk/portal/en/theses/a-probabilistic-approach-to-improving-the-stability-of-meshed-power-networks-with-embedded-hvdc-lines(b7e4843f-52b4-4ccf-88ad-48f9195b7270).html.

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This thesis investigates the effects of High Voltage Direct Current (HVDC) lines andmulti-terminal grids on power system small-disturbance stability in the presence ofoperational uncertainties. The main outcome of this research is the comprehensiveprobabilistic assessment of the stability improvements that can be achieved through theuse of supplementary damping control applied to HVDC systems.Power systems are increasingly operated closer to stability boundaries in order toimprove their efficiency and economic value whilst a growing number of conventionalcontrolled power plants are being repla
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27

Arsoy, Aysen. "Electromagnetic Transient and Dynamic Modeling and Simulation of a StatCom-SMES Compensator in Power Systems." Diss., Virginia Tech, 2000. http://hdl.handle.net/10919/27225.

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Electromagnetic transient and dynamic modeling and simulation studies are presented for a StatCom-SMES compensator in power systems. The transient study aims to better understand the transient process and interaction between a high power/high voltage SMES coil and its power electronics interface, dc-dc chopper. The chopper is used to attach the SMES coil to a StatCom. Following the transient study, the integration of a StatCom with SMES was explored to demonstrate the effectiveness of the combined compensator in damping power oscillations. The transient simulation package PSCAD/EMTDC has been
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28

Schoemacker, Florian, Felix Fischer, and Katharina Schmitz. "Damping strategies for energy efficient pressure controllers of variable displacement pumps." Technische Universität Dresden, 2020. https://tud.qucosa.de/id/qucosa%3A71108.

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In hydraulic-mechanically controlled variable displacement pumps, the actual pump controller produces additional power losses. Due to the low damping coefficients of all pump controller’s components, hydraulic-mechanically pressure controlled pumps use to oscillate while adjusting the pressure level in the hydraulic system. In several state-of-the-art variable pump controllers, a damping orifice connects the control actuator’s displacement chamber with the reservoir. This bypass dampens the movement of the control actuator but also leads to bypass losses during steady-state operation of the pu
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Latorre, Hector F. "A Multichoice Control Strategy for a VSC-HVdc." Licentiate thesis, KTH, Elektriska energisystem, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4675.

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Utilization of power electronics based controllable systems (or devices) in transmission systems has opened new opportunities for the power industry to optimize utilization of the existing transmission systems, and at the same time to keep high system reliability and security. As a member of these controllable systems, Voltage Source Converters-based High Voltage direct current (VSC-HVdc) systems have the ability to rapidly control the transmitted active power, and also to independently exchange reactive power with transmissions systems. Therefore, VSC-HVdcs with a suitable control scheme can
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Latorre, Hector. "A Multichoice Control Strategy for a VSC-HVdc." Licentiate thesis, Stockholm : Elektriska energisystem, Electric Power Systems, Kungliga Tekniska högskolan, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4675.

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Ramos, Rodrigo Andrade. "Procedimento de projeto de controladores robustos para o amortecimento de oscilações eletromecânicas em sistemas de potência." Universidade de São Paulo, 2002. http://www.teses.usp.br/teses/disponiveis/18/18133/tde-11032003-074604/.

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Este trabalho propõe uma nova metodologia de projeto de controladores para o amortecimento de oscilações eletromecânicas de baixa freqüência em sistemas de potência. Considerando a necessidade de se aumentar a robustez dos estabilizadores clássicos frente a variações nas condições de operação, este estudo analisou uma série de requisitos práticos a serem atendidos pelos novos controladores de amortecimento e desenvolveu a metodologia proposta, de tal forma que os controladores projetados pudessem satisfazer a todos os requisitos analisados. Foram tratadas questões relativas à estrutura de cont
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Glickman, Mark. "Disturbance monitoring in distributed power systems." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/16497/1/Mark_Glickman_Thesis.pdf.

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Power system generators are interconnected in a distributed network to allow sharing of power. If one of the generators cannot meet the power demand, spare power is diverted from neighbouring generators. However, this approach also allows for propagation of electric disturbances. An oscillation arising from a disturbance at a given generator site will affect the normal operation of neighbouring generators and might cause them to fail. Hours of production time will be lost in the time it takes to restart the power plant. If the disturbance is detected early, appropriate control measures can be
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Glickman, Mark. "Disturbance monitoring in distributed power systems." Queensland University of Technology, 2007. http://eprints.qut.edu.au/16497/.

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Power system generators are interconnected in a distributed network to allow sharing of power. If one of the generators cannot meet the power demand, spare power is diverted from neighbouring generators. However, this approach also allows for propagation of electric disturbances. An oscillation arising from a disturbance at a given generator site will affect the normal operation of neighbouring generators and might cause them to fail. Hours of production time will be lost in the time it takes to restart the power plant. If the disturbance is detected early, appropriate control measures can be
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34

Furini, Marcos Amorielle [UNESP]. "Estudo da estabilidade a pequenas perturbações de sistemas elétricos de potência multimáquinas sob a ação dos controladores FACTS TCSC e UPFC." Universidade Estadual Paulista (UNESP), 2008. http://hdl.handle.net/11449/87215.

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Made available in DSpace on 2014-06-11T19:22:35Z (GMT). No. of bitstreams: 0 Previous issue date: 2008-01-25Bitstream added on 2014-06-13T20:09:50Z : No. of bitstreams: 1 furini_ma_me_ilha.pdf: 1020610 bytes, checksum: d3a4a2f6ec4cb8559c7d3d6b770ec955 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>O objetivo desta Dissertação de Mestrado é apresentar a possibilidade de fornecer amortecimento às oscilações de baixa freqüência do sistema elétrico de potência através dos dispositivos FACTS (Flexible Alternating Current Transmission System) TCSC (Thyristor Contr
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Trentini, Preuss Rodrigo [Verfasser]. "Contributions to the damping of interarea modes in extended power systems : a turbine governor approach with the help of the Unrestricted Horizon Predictive Controller / Rodrigo Trentini Preuss." Hannover : Technische Informationsbibliothek (TIB), 2017. http://d-nb.info/1136295828/34.

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Furini, Marcos Amorielle. "Estudo da estabilidade a pequenas perturbações de sistemas elétricos de potência multimáquinas sob a ação dos controladores FACTS TCSC e UPFC /." Ilha Solteira : [s.n.], 2008. http://hdl.handle.net/11449/87215.

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Orientador: Percival Bueno de Araujo<br>Banca: Antonio Padilha Feltrin<br>Banca: Wellington Santos Mota<br>Resumo: O objetivo desta Dissertação de Mestrado é apresentar a possibilidade de fornecer amortecimento às oscilações de baixa freqüência do sistema elétrico de potência através dos dispositivos FACTS (Flexible Alternating Current Transmission System) TCSC (Thyristor Controlled Series Capacitor) e UPFC (Unified Power Flow Controller). Para isso realiza-se o desenvolvimento e implementação do Modelo de Sensibilidade de Potência para sistemas multmáquinas. Na seqüência são introduzidos os d
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37

Ladjavardi, Marjan. "Improving small signal stability of power systems in the presence of harmonics." Thesis, Curtin University, 2008. http://hdl.handle.net/20.500.11937/511.

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This thesis investigates the impact of harmonics as a power quality issue on the dynamic behaviour of the power systems. The effectiveness of the power system stabilizers in distorted conditions is also investigated. This thesis consists of three parts as follows:The first part focuses on the operation of the power system under distorted conditions. The conventional model of a synchronous generator in the dq-frame of reference is modified to include the impact of time and space harmonics. To do this, the synchronous generator is first modelled in the harmonic domain. This model helps in calcul
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38

Gamino, Bruno Rafael. "Análise da estabilidade a pequenas perturbações considerando a atuação dos controladores suplementares de amortecimento ESP e TCSC-POD ajustados por um algoritmo BVNS /." Ilha Solteira, 2018. http://hdl.handle.net/11449/157402.

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Orientador: Percival Bueno de Araujo<br>Resumo: Neste trabalho, uma técnica baseada na Busca em Vizinhança Variável Básica é apresentada para realizar o ajuste coordenado dos parâmetros dos controladores suplementares de amortecimento Thyristor Controlled Series Capacitor - Power Oscillation Damping e Estabilizadores de Sistemas de Potência, a fim de garantir a estabilidade a pequenas perturbações de sistemas elétricos de potência. A estratégia do método de ajuste proposto consiste em explorar sistematicamente estruturas de vizinhança atrelada a uma etapa de busca local, tornando possível a ob
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39

Machado, Martínez Juan Eduardo. "Some Problems on the Analysis and Control of Electrical Networks with Constant Power Loads On Existence of Equilibria of Multi-Port Linear AC Networks With Constant-Power Loads An Adaptive Passivity-Based Controller of a Buck-Boost Converter with a Constant Power Load Power-Controlled Hamiltonian Systems: Application Electrical Systems with Constant Power Loads On the Existence and Long-Term Stability of Voltage Equilibria in Power Systems with Constant Power Loads Active Damping of a DC Network with a Constant Power Load: An Adaptive Observer-based Design." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLS445.

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La croissante demande d'énergie électrique a conduit à la conception de systèmes électriques de grande complexité où les combustibles fossiles constituent la principale source d'énergie. Néanmoins, les préoccupations environnementales poussent à un changement majeur dans les pratiques de production d'électricité, avec un passage marqué des énergies fossiles aux énergies renouvelables et des architectures centralisées à distribuées. Les problèmes de stabilité dus à la présence de ce qu'on appelle les Charges à Puissance Constante (CPLs) constituent l’un des principaux défis auxquels sont confro
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40

Souza, Igor Dias Neto de. "Controle digital com malha dupla de tensão aplicado a um conversor formador de rede." Universidade Federal de Juiz de Fora (UFJF), 2017. https://repositorio.ufjf.br/jspui/handle/ufjf/4083.

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Submitted by Renata Lopes (renatasil82@gmail.com) on 2017-04-18T14:49:13Z No. of bitstreams: 1 igordiasnetodesouza.pdf: 13872772 bytes, checksum: 45517d7a6da7ae06ecacec6a7fb7ebd8 (MD5)<br>Approved for entry into archive by Adriana Oliveira (adriana.oliveira@ufjf.edu.br) on 2017-04-18T14:50:11Z (GMT) No. of bitstreams: 1 igordiasnetodesouza.pdf: 13872772 bytes, checksum: 45517d7a6da7ae06ecacec6a7fb7ebd8 (MD5)<br>Made available in DSpace on 2017-04-18T14:50:11Z (GMT). No. of bitstreams: 1 igordiasnetodesouza.pdf: 13872772 bytes, checksum: 45517d7a6da7ae06ecacec6a7fb7ebd8 (MD5) Previous is
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41

Passelergue, Jean-Christophe. "Interactions des dispositifs FACTS dans les grands réseaux électriques." Phd thesis, Grenoble INPG, 1998. http://www.theses.fr/1998INPG0148.

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L'augmentation des transits de puissance dans les réseaux d'énergie électrique ainsi que les contraintes environnementales ont conduit à l'introduction des dispositifs FACTS (Flexible AC Transmission Systems) pour l'amélioration de l'exploitation des réseaux. Ces dispositifs sont capables de remplir diverses fonctions comme le maintien de la tension, le contrôle des flux de puissance, l'amélioration de la stabilité du réseau, l'augmentation de la puissance transmissible maximale, etc. De plus, grâce à leur temps de réponse rapide, ils sont apparus comme des outils efficaces pour l'amortissemen
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42

Ajit, Kumar *. "Design Of Robust Power System Damping Controllers For Interconnected Power Systems." Thesis, 2010. https://etd.iisc.ac.in/handle/2005/1653.

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Small signal oscillation has been always a major concern in the operation of power systems. In a generator, the electromechanical coupling between the rotor and the rest of the system causes it to behave in a manner similar to a spring mass damper system, which exhibits an oscillatory behaviour around the equilibrium state, following any disturbance, such as sudden change in loads, fluctuations in the output of turbine and faults etc. The use of fast acting high gain AVRs and evolution of large interconnected power systems with transfer of bulk power across weak transmission links have further
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43

Ajit, Kumar *. "Design Of Robust Power System Damping Controllers For Interconnected Power Systems." Thesis, 2010. http://etd.iisc.ernet.in/handle/2005/1653.

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Small signal oscillation has been always a major concern in the operation of power systems. In a generator, the electromechanical coupling between the rotor and the rest of the system causes it to behave in a manner similar to a spring mass damper system, which exhibits an oscillatory behaviour around the equilibrium state, following any disturbance, such as sudden change in loads, fluctuations in the output of turbine and faults etc. The use of fast acting high gain AVRs and evolution of large interconnected power systems with transfer of bulk power across weak transmission links have further
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44

Kumar, Ajit. "Enhancement of Small Signal Stability in Power Systems: Novel Approaches." Thesis, 2018. http://etd.iisc.ac.in/handle/2005/4157.

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The modern power system is a highly nonlinear system that operates in a constantly changing environment. Power system, need to maintain more or less flat voltage profile across the grid and maintain stability for small and large disturbances. Traditionally, automatic voltage regulators (AVR) are used for voltage regulation and power system stabilizers (PSS) are used as auxiliary controllers in AVR to enhance the small signal stability of power system. The conventional PSS design techniques require considerable expertise, full system information and extensive eigenvalue calculations, which i
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45

Nagesh, Prabhu *. "Analysis Of SubSynchronous Resonance With Voltage Source Converter Based FACTS And HVDC Controllers." Thesis, 2004. https://etd.iisc.ac.in/handle/2005/1174.

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Nagesh, Prabhu *. "Analysis Of SubSynchronous Resonance With Voltage Source Converter Based FACTS And HVDC Controllers." Thesis, 2004. http://etd.iisc.ernet.in/handle/2005/1174.

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47

Tambey, Neelima. "Flexible AC transmission systems (FACT) controllers for damping power system oscillations." Thesis, 2003. http://localhost:8080/xmlui/handle/12345678/5553.

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48

Sarkar, Mithu. "Robust Wide-Area Damping Controllers for compensating Inter-Area Oscillations in Power System." Thesis, 2019. http://ethesis.nitrkl.ac.in/10136/2/2019_PhD_MSarkar_514EE6034_Robust.pdf.pdf.

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Inter-area low-frequency oscillation is one of the major problems in an interconnected power system. The low frequency oscillations are observed to when a group of generators or a single generator on one side of the tie line oscillate against a group of generators or a single generator on the other side of the tie line. The power transfer capability through tie lies is reduced due to inter-area poorly damped oscillation. Sometimes these inter area oscillations may pose a serious threat to power system stability. Local signal based conventional power system stabilizer(PSS) is used to stabilize
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49

Samal, S. K. "Power system stability enhancment using UPFC damping controller." Thesis, 2014. http://ethesis.nitrkl.ac.in/6126/1/e-72.pdf.

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The rising of demand of power and difficulties of constructing a newly transmission network causes the power system to be complex and stressed. Due to the stress in the power system there is a chance of losing the stability following to the fault. When the fault occurs in the power system the whole system goes to severe transients. By using PSS and AVR we can easily stabilize the system. FACTS devices (i.e. TCSC, SVC, STATCOM, and UPFC) are extremely important to suppressing the power system oscillations for faults and it also increasing the damping of the system. The power electronic device n
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Chonco, Nkosinathi Stanford. "The application of controllable inverter-based series compensation to power oscillation damping." Thesis, 2000. http://hdl.handle.net/10413/5601.

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Poorly damped oscillations that occur between the generators in large interconnected power systems often limit the amount of power that can be transmitted through a transmission corridor and are a threat to secure system operation. Coordinated insertion and removal of capacitors in series with a transmission line is one of the approaches that has been known for many years to be capable of enhancing the damping of power system oscillations. Unfortunately however, this approach historically relied on the operation of mechanical circuit breakers which were too slow and unreliable for the high-spe
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