Relevant bibliographies by topics / Unified Power Flow Controller (UPFC)

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Academic literature on the topic 'Unified Power Flow Controller (UPFC)'

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Published: 4 June 2021
Last updated: 6 September 2023

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Journal articles on the topic "Unified Power Flow Controller (UPFC)"

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Satyavir, Singh. "Power flow control capability analysis of unified power flow controller." i-manager's Journal on Power Systems Engineering 10, no. 2 (2022): 12. http://dx.doi.org/10.26634/jps.10.2.18808.

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In the field of power system restructuring, Flexible Alternating Current Transmission System (FACTS) technology has become indispensable for alleviating the challenges of load flow control, voltage control, transient stability, and dynamic stability. The Unified Power Flow Controller (UPFC) is the fastest, most flexible, and most capable FACTS device because it has the full advantage of providing simultaneous and independent real-time control of voltage, impedance, and phase angle, which are the main power system parameters that affect system performance. This paper uses a Newton-Raphson load flow that includes UPFC to analyze how UPFC can control the flow of power.
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Shende, Divya, Prashant Jagtap, and Rutuja Hiware. "Review of enhanced power quality using unified power flow control system in electrical network." Journal of Physics: Conference Series 2089, no. 1 (November 1, 2021): 012034. http://dx.doi.org/10.1088/1742-6596/2089/1/012034.

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Abstract Flexible FACTS system of AC transmission. FACTS Devices can regulate electricity flow, develop the transmission capacity for power management. UPFC is a multipurpose fact controller carried on design of the constant voltage source. As an electrical device UPFC for rapid reactive power adjustment on high voltage electricity transport grid. Unified power flow control (UPFC). The latest FACTS gadget is UPFC. This combines series and shunting compensator characteristics and enables Power reactive and response to be controlled. UPFC utilization reduces difficulties in power quality including voltage sink and voltage surge. This article addresses UPFC and also several novel topologies for FACTS controllers.
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Pandian, Arun Nambi, and Aravindhababu Palanivelu. "Optimal UPFC Placement for Voltage Stability Enhancement." ECS Journal of Solid State Science and Technology 12, no. 4 (April 1, 2023): 044005. http://dx.doi.org/10.1149/2162-8777/accaa4.

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The Unified Power Flow Controller is a versatile and important device for improving the operational efficiency of power systems in the flexible AC transmission systems family. It finds applications in improving voltage stability in addition to provide a better voltage profile and reducing transmission loss. This paper presents a Chemical Reaction Inspired Optimization based method for placement of unified power flow controllers with the objective of raising the voltage stability. Most of the existing methods place all the given unified power flow controllers without analysing whether each of the given unified power flow controllers is actually needed to improve voltage stability or other selected performances. The proposed method tries to place only the essential unified power flow controllers from the allocated number of devices, besides providing optimal line locations and unified power flow controller parameters. It also includes the results of the proposed method for three standard test systems and compares them with existing methods to depict the dominance of the proposed method.
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Gopinath, B., S. Suresh Kumar, and Juvan Michael. "Stability Improvement in Power Systems Using Unified Power Flow Controller (UPFC)." Advanced Materials Research 768 (September 2013): 392–97. http://dx.doi.org/10.4028/www.scientific.net/amr.768.392.

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Flexible AC transmission system (FACTS) is a system composed of static equipments used for ac transmission of electric energy to improve the power transfer capability and to enhance controllability of interconnected network. Unified Power Flow Controller (UPFC) is the most widely used FACTS device for providing fast acting reactive power compensation on high voltage electricity transmission network. This paper deals with the designing of Adaptive Neuro Fuzzy Inference controller (ANFIC) and fuzzy based Particle Swarm Optimization (PSO) controller for the performance analysis of UPFC. The controller have been designed and tested for controlling the real and reactive power of UPFC. Fuzzy-PI controller is used to control the shunt part of UPFC. The system response under high short circuit level is tested on 5-bus system and 118-bus system. Computer simulation by MATLAB/SIMULINK has been used to verify proposed control strategies.
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H., Ananda M., and M. R. Shivakumar. "Particle swarm optimization tuned unified power flow controller for power oscillation reduction." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 2 (August 1, 2021): 633. http://dx.doi.org/10.11591/ijeecs.v23.i2.pp633-638.

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One of the best flexible AC transmission system (FACTS) is unified power flow controller (UPFC). As it gets more benefit from both real and reactive power transfer, it is used in power system for controlling the transmitted power. The UPFC controls the power on the transmission side of the power system. When the real as well as reactive power is set the UPFC tries to follow the command by using the proportional and integral (PI) controller. But in some power systems the PI controllers cannot produce the proper power due to the power oscillations. These oscillations are created due to PI controller properties. In this paper the PI controller is replaced with the particle swarm optimization tuned PI controller (PSO-PI). It minimizes the power oscillations by using the objective function. The MATLAB 2017b is used to demonstrate the power transfer curves and the voltages. The IEEE 9 bus system is being used as a reference system.
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Lee, Hyun-Jun, Dae-Shik Lee, and Young-Doo Yoon. "Unified Power Flow Controller Based on Autotransformer Structure." Electronics 8, no. 12 (December 13, 2019): 1542. http://dx.doi.org/10.3390/electronics8121542.

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This paper proposes a new unified power flow controller (UPFC) topology. A single phase of them system with the proposed topology consists of an N:2 transformer with a center tap at the low-voltage side and a power converter module comprising full- and half-bridge converters. A three-phase system can be implemented with three devices. While the conventional UPFC topology uses two three-phase transformers, which are called series and parallel transformers, the proposed topology utilizes three single-phase transformers to implement a three-phase UPFC system. By using an autotransformer structure, the power rating of the transformers and the voltage rating of switches in the power converter module can be significantly decreased. As a result, it is possible to reduce the installation spaces and costs compared with the conventional UPFC topology. In addition, by adopting a full- and half-bridge converter structure, the proposed topology can be easily implemented with conventional power devices and control techniques. The techniques used to control the proposed topology are described in this paper. The results obtained from simulations and experiments verify the effectiveness of the proposed UPFC topology.
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Alsammak, Ahmed Nasser, and Hasan Adnan Mohammed. "Power quality improvement using fuzzy logic controller based unified power flow controller." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 1 (January 1, 2021): 1. http://dx.doi.org/10.11591/ijeecs.v21.i1.pp1-9.

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<p>The Power quality of the electrical system is an important issue for industrial, commercial, and housing uses. An increasing request for high quality electrical power and an increasing number of distorting loads had led to increase the consideration of power quality by customers and utilities. The development and use of flexible alternating current transmission system (FACTs) controllers in power transmission systems had led to many applications of these controllers. A unified power flow controller (UPFC) is one of the FACTs elements which is used to control both active and reactive power flow of the transmission line. This paper tried to improve power quality using a fuzzy logic controller (FLC) based UPFC, where it used to control both active and reactive power flow, decreas the total harmonic distortion (THD), correct power factor, regulate line voltage and enhance transient stability. A comparison study of the performance between the system with a conventional PID controller and FLC has been done. The theoretical analysis has been proved by implementing the system using MATLAB/SIMULINK package.The Power quality of the electrical system is an important issue for industrial, commercial, and housing uses. An increasing request for high quality electrical power and an increasing number of distorting loads had led to increase the consideration of power quality by customers and utilities. The development and use of flexible alternating current transmission system (FACTs) controllers in power transmission systems had led to many applications of these controllers. A unified power flow controller (UPFC) is one of the FACTs elements which is used to control both active and reactive power flow of the transmission line. This paper tried to improve power quality using a fuzzy logic controller (FLC) based UPFC, where it used to control both active and reactive power flow, decreas the total harmonic distortion (THD), correct power factor, regulate line voltage and enhance transient stability. A comparison study of the performance between the system with a conventional PID controller and FLC has been done. The theoretical analysis has been proved by implementing the system using MATLAB/SIMULINK package.</p>
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Kohno, Hirotoshi, Tatsuhito Nakajima, and Akihiko Yokoyama. "Power System Damping Enhancement using Unified Power Flow Controller (UPFC)." IEEJ Transactions on Power and Energy 119, no. 3 (1999): 344–53. http://dx.doi.org/10.1541/ieejpes1990.119.3_344.

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Suliman, Mohammed Y., and Mahmood T. Al-Khayyat. "Power flow control in parallel transmission lines based on UPFC." Bulletin of Electrical Engineering and Informatics 9, no. 5 (October 1, 2020): 1755–65. http://dx.doi.org/10.11591/eei.v9i5.2290.

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The power flow controlled in the electric power network is one of the main factors that affected the modern power systems development. The unified power flow controller (UPFC) is a FACTS powerful device that can control both active and reactive power flow of parallel transmission lines branches. In this paper, modelling and simulation of active and reactive power flow control in parallel transmission lines using UPFC with adaptive neuro-fuzzy logic is proposed. The mathematical model of UPFC in power flow is also proposed. The results show the ability of UPFC to control the flow of powers components "active and reactive power" in the controlled line and thus the overall power regulated between lines.
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Yang, Jian, Zheng Xu, and Zheren Zhang. "Analysis of Unified Power Flow Controller Steady-State Power Flow Regulation Capability and Its Key Factors." Energies 13, no. 17 (August 27, 2020): 4419. http://dx.doi.org/10.3390/en13174419.

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As the latest generation of flexible AC transmission system (FACTS) devices, the unified power flow controller (UPFC) has comprehensive control capability and has played an important role in modern power systems. Research on UPFC steady-state power flow regulation capability is valuable for the design and operation of UPFC projects. To analyze the UPFC regulation capability, in this paper, the interaction between the UPFC and the external system is studied and the key factors of UPFC regulation capability are analyzed. It is demonstrated that the changes in the voltage magnitude and phase angle difference of UPFC-embedded line terminals will hinder the UPFC from regulating the power flow and decrease the UPFC regulation capability. Therefore, the UPFC power flow regulation capability is not only related to the parameters of the UPFC and its installation line, but also related to grid parameters. To analyze the UPFC active power flow regulation capability in practical power grids, the relationship between the UPFC regulation capability and grid parameters is deduced, and an estimation method is proposed to calculate the regulation range. Then, the estimation method is applied in the Chuxiong Power Grid and compared with power flow calculations. The results verify the UPFC power flow regulation characteristics given by the analysis and the effectiveness of the estimation method. Besides, it is shown that the estimation method can lower the requirements for the power flow calculation program, and reduce computation load.
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Dissertations / Theses on the topic "Unified Power Flow Controller (UPFC)"

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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.
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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Al-Mawsawi, Sayed Ali Abbas Ali. "Simulation and implementation of a PWM based UPFC." Thesis, Imperial College London, 1995. http://hdl.handle.net/10044/1/8679.

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Farrag, Mohamed. "Investigation of advanced control for the unified power flow controller (UPFC)." Thesis, Northumbria University, 2002. http://nrl.northumbria.ac.uk/3300/.

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The Unified Power Flow Controller (UPFC) is the versatile FACTS controller that can control up to three transmission system parameters individually or simultaneously in appropriate combinations. The work presented in this thesis is concentrated on the modelling and control of the UPFC. The overall aim is to provide effective tools for optimising the impact of the UPFC in the reinforcement of a transmission system. Existing modelling techniques for the UPFC together with the associated control strategies have been systematically reviewed. An exact power injection model is proposed which is based on the polar representation of the UPFC parameters and includes the reactive power capability of the shunt inverter. In addition, a steady-state model based on an ideal controlled voltage source has been developed using MATLAB/SIMULINK which provides a useful tool to analyse and develop the UPFC control system. The UPFC internal limits have been identified and accordingly, the feasible operating area of a transmission system incorporating a UPFC has been determined based on the UPFC maximum limits. The influence of both the series and shunt inverters on this controlled area has been analysed. The impact of a change in the system short circuit level on the UPFC operation and the size of the feasible area has also been investigated. Three modern controllers have been designed and tested for controlling the UPFC in a power flow mode for the series part and a voltage control mode for the shunt part. These controllers are: a fuzzy knowledge based controller, an artificial neural network based controller and a neuro-fuzzy based controller. For the former, the fuzzy rules are deduced from the relationship between the controlled power system parameters and the UPFC control variables. The second is a simple RBFNN controller which is constructed from a single neuron and trained on-line by a gradient descent algorithm. The third controller is designed using the adaptive capabilities of neural networks to estimate and tune the fuzzy rules. Computer simulation and experimental implementation of a UPFC using DS 1103 data acquisition board have been used to verify the proposed control strategies. In the experimental lab model, two 6-pulse inverters implementing the SPWM technique have been used to realise the UPFC system.
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Arnez, Ricardo León Vasquez. "Contribuição ao estudo de aplicações do UPFC em redes elétricas." Universidade de São Paulo, 2004. http://www.teses.usp.br/teses/disponiveis/3/3143/tde-19092014-153429/.

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Neste trabalho são exploradas as potencialidades e efeitos de possíveis aplicações do UPFC (Unified Power Flow Controller) em redes elétricas. Este recente equipamento da família FACTS, apesar de mais complexo, apresenta rapidez e versatilidade de respostas que podem justificar sua aplicação em redes elétricas. São apresentados modelos matemáticos deste dispositivo, para regime permanente e transitório, utilizando transformações para coordenadas ortogonais. Com base nas respostas obtidas, durante as simulações das aplicações estudadas, pode-se constatar que a tensão série e seu posicionamento angular, introduzidos pelo UPFC, desempenham um importante papel no controle rápido e eficiente do fluxo de potência. Como contribuição deste trabalho, explorou-se a conexão do conversor shunt ao enrolamento terciário de autotransformadores, demonstrando a viabilidade do controle do fluxo de potência nestes equipamentos de transformação. O esquema proposto, instalado em transformadores em paralelo, eleva a disponibilidade de operação do UPFC, aumentando a flexibilidade operativa do sistema em implementações práticas. Através da formulação apresentada, o transformador de acoplamento shunt, convencionalmente utilizado pelo UPFC, apresenta dimensões reduzidas. Foi também examinada a possibilidade de limitação de correntes de curto-circuito, equilibrados ou não, com a ação dos controles do UPFC, particularmente, aprofundando a análise do seu desempenho mais eficiente diante de curtos monofásicos. Os resultados satisfatórios obtidos permitem considerar a viabilidade de limitação destas correntes como um subproduto interessante da atuação deste dispositivo FACTS.
In this thesis, the UPFC (Unified Power Flow Controller) various capabilities and effects for possible network applications, are studied. Although its structure is relatively more complex, when compared to the other FACTS controllers, its fast response and versatility can justify its application within the network. By utilising the orthogonal co-ordinates transform both the steady-state and transient mathematical models of the UPFC, are presented herein. Based on the results obtained and regarding the applications studied, it can be stated that the UPFC series voltage along with its phase angle play an important role for the fast and efficient control of the power flow. As a contribution of the present work, it has been proposed the connection of the shunt converter to the tertiary winding of autotransformers, demonstrating in this way the feasibility for controlling the power flow over such transforming assets. The proposed scheme, which regards two paralleled transformers, offers the UPFC a high operation availability increasing the system operative flexibility in actual implementations. By means of the proposed approach, the shunt coupling transformer, usually utilised in a classical UPFC configuration, presents a reduced size. Also, by utilising the UPFC control actions, it has been examined the possibility of short-circuit limitation over balanced and unbalanced circuits. Particularly, it has been analysed the UPFC most efficient performance towards line-to-ground faults. The satisfactory results obtained lead to consider the UPFC feasibility in limiting such currents; this, as an interesting by-product of this FACTS device action.
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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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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 adicional aos modos oscilatórios de baixa frequência e, consequentemente, garantir a estabilidade do sistema elétrico frente a pequenas perturbações. São considerados três cenários que englobam duas configurações de instalação dos controladores suplementares e duas condições de carregamento, uma fixa e outra variável. Uma formulação por injeções de corrente do dispositivo Unified Power Flow Controller é sugerida e incorporada ao Modelo de Sensibilidade de Corrente, utilizado para representar o sistema elétrico de potência. Análises estática e dinâmica foram realizadas nos sistemas teste Simétrico de Duas Áreas e New England para validar o modelo de injeções de corrente proposto para o Unified Power Flow Controller e determinar qual dos algoritmos apresentados é o mais eficiente no ajuste coordenado dos parâmetros dos controladores. Dos resultados obtidos foi possível concluir que a versão híbrida proposta neste trabalho possui desempenho superior na maioria dos cenários analisados, fornecendo soluções com amortecimento suficiente, mesmo quando pequenas variações no carregamento do sistema são consideradas.
In this work four bio-inspired optimization methods, Artificial Bee Colony, Particle Swarm Optimization, Firefly Algorithm, and a hybrid called Bee – PSO, which combines the characteristics of the other three are presented. These methods are used in the coordinated adjustment of the parameters of Proportional-Integral and Supplementary Damping Controllers (Power System Stabilizers and the Unified Power Flow Controller - Power Oscillation Damping). The goal is to insert additional damping into the low-frequency oscillatory modes and thus ensure the stability of the electrical system against minor disturbances. Three scenarios are considered that include two installation configurations of the supplementary controllers and two charging conditions, one fixed and one variable. A current injection formulation of the Unified Power Flow Controller is suggested and incorporated into the Current Sensitivity Model used to represent the electric power system. Static and dynamic analyzes were performed in the Two-Zone Symmetric and New England test systems to validate the proposed current injection model for the Unified Power Flow Controller and to determine which of the presented algorithms is the most efficient in the coordinated adjustment of the parameters of the controllers. From the results obtained it was possible to conclude that the hybrid version proposed in this work has superior performance in most scenarios analyzed, providing solutions with sufficient damping, even when small variations in system loading are considered.
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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
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 adicional aos modos oscilatórios de baixa frequência e, consequentemente, garantir a estabilidade do sistema elétrico frente a pequenas perturbações. São considerados três cenários que englobam duas configurações de instalação dos controladores suplementares e duas condições de carregamento, uma fixa e outra variável. Uma formulação por injeções de corrente do dispositivo Unified Power Flow Controller é sugerida e incorporada ao Modelo de Sensibilidade de Corrente, utilizado para representar o sistema elétrico de potência. Análises estática e dinâmica foram realizadas nos sistemas teste Simétrico de Duas Áreas e New England para validar o modelo de injeções de corrente proposto para o Unified Power Flow Controller e determinar qual dos algoritmos apresentados é o mais eficiente no ajuste coordenado dos parâmetros dos controladores. Dos resultados obtidos foi possível concluir que a versão híbrida proposta neste trabalho possui desempenho s... (Resumo completo, clicar acesso eletrônico abaixo)
Abstract: In this work four bio-inspired optimization methods, Artificial Bee Colony, Particle Swarm Optimization, Firefly Algorithm, and a hybrid called Bee – PSO, which combines the characteristics of the other three are presented. These methods are used in the coordinated adjustment of the parameters of Proportional-Integral and Supplementary Damping Controllers (Power System Stabilizers and the Unified Power Flow Controller - Power Oscillation Damping). The goal is to insert additional damping into the low-frequency oscillatory modes and thus ensure the stability of the electrical system against minor disturbances. Three scenarios are considered that include two installation configurations of the supplementary controllers and two charging conditions, one fixed and one variable. A current injection formulation of the Unified Power Flow Controller is suggested and incorporated into the Current Sensitivity Model used to represent the electric power system. Static and dynamic analyzes were performed in the Two-Zone Symmetric and New England test systems to validate the proposed current injection model for the Unified Power Flow Controller and to determine which of the presented algorithms is the most efficient in the coordinated adjustment of the parameters of the controllers. From the results obtained it was possible to conclude that the hybrid version proposed in this work has superior performance in most scenarios analyzed, providing solutions with sufficient damping, even when smal... (Complete abstract click electronic access below)
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Jalboub, Mohamed K. "Investigation of the application of UPFC controllers for weak bus systems subjected to fault conditions. An investigation of the behaviour of a UPFC controller: the voltage stability and power transfer capability of the network and the effect of the position of unsymmetrical fault conditions." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5699.

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In order to identify the weakest bus in a power system so that the Unified Power Flow Controller could be connected, an investigation of static and dynamic voltage stability is presented. Two stability indices, static and dynamic, have been proposed in the thesis. Multi-Input Multi-Output (MIMO) analysis has been used for the dynamic stability analysis. Results based on the Western System Coordinate Council (WSCC) 3-machine, 9-bus test system and IEEE 14 bus Reliability Test System (RTS) shows that these indices detect with the degree of accuracy the weakest bus, the weakest line and the voltage stability margin in the test system before suffering from voltage collapse. Recently, Flexible Alternating Current Transmission systems (FACTs) have become significant due to the need to strengthen existing power systems. The UPFC has been identified in literature as the most comprehensive and complex FACTs equipment that has emerged for the control and optimization of power flow in AC transmission systems. Significant research has been done on the UPFC. However, the extent of UPFC capability, connected to the weakest bus in maintaining the power flows under fault conditions, not only in the line where it is installed, but also in adjacent parallel lines, remains to be studied. In the literature, it has normally been assumed the UPFC is disconnected during a fault period. In this investigation it has been shown that fault conditions can affect the UPFC significantly, even if it occurred on far buses of the power system. This forms the main contribution presented in this thesis. The impact of UPFC in minimizing the disturbances in voltages, currents and power flows under fault conditions are investigated. The WSCC 3-machine, 9-bus test system is used to investigate the effect of an unsymmetrical fault type and position on the operation of UPFC controller in accordance to the G59 protection, stability and regulation. Results show that it is necessary to disconnect the UPFC controller from the power system during unsymmetrical fault conditions.
Libyan Government
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Jalboub, Mohamed. "Investigation of the application of UPFC controllers for weak bus systems subjected to fault conditions : an investigation of the behaviour of a UPFC controller : the voltage stability and power transfer capability of the network and the effect of the position of unsymmetrical fault conditions." Thesis, University of Bradford, 2012. http://hdl.handle.net/10454/5699.

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In order to identify the weakest bus in a power system so that the Unified Power Flow Controller could be connected, an investigation of static and dynamic voltage stability is presented. Two stability indices, static and dynamic, have been proposed in the thesis. Multi-Input Multi-Output (MIMO) analysis has been used for the dynamic stability analysis. Results based on the Western System Coordinate Council (WSCC) 3-machine, 9-bus test system and IEEE 14 bus Reliability Test System (RTS) shows that these indices detect with the degree of accuracy the weakest bus, the weakest line and the voltage stability margin in the test system before suffering from voltage collapse. Recently, Flexible Alternating Current Transmission systems (FACTs) have become significant due to the need to strengthen existing power systems. The UPFC has been identified in literature as the most comprehensive and complex FACTs equipment that has emerged for the control and optimization of power flow in AC transmission systems. Significant research has been done on the UPFC. However, the extent of UPFC capability, connected to the weakest bus in maintaining the power flows under fault conditions, not only in the line where it is installed, but also in adjacent parallel lines, remains to be studied. In the literature, it has normally been assumed the UPFC is disconnected during a fault period. In this investigation it has been shown that fault conditions can affect the UPFC significantly, even if it occurred on far buses of the power system. This forms the main contribution presented in this thesis. The impact of UPFC in minimizing the disturbances in voltages, currents and power flows under fault conditions are investigated. The WSCC 3-machine, 9-bus test system is used to investigate the effect of an unsymmetrical fault type and position on the operation of UPFC controller in accordance to the G59 protection, stability and regulation. Results show that it is necessary to disconnect the UPFC controller from the power system during unsymmetrical fault conditions.
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Ma, Tsao-Tsung. "Use of multiple unified power flow controllers (UPFCs) to enhance power system operations and control." Thesis, University of Strathclyde, 2000. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.366876.

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Smale, Marcus James. "An investigation of a reverse connected unified power flow controller for power quality conditioning." Thesis, University of Manchester, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.682782.

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The Unified Power Flow Controller (UPFC) is an advanced Flexible AC Transmission System (FACTS) device that can be controlled to condition alternating voltage and alternating current simultaneously. In this project the use of a reverse connected UPFC topology has been investigated for the improvement of poor power quality at distribution voltage and power levels, namely voltage distortion due to voltage sags and current distortion due to non-linear loads. A three-phase, reverse connected UPFC model, based on two back-to-back connected two-level Voltage Sourced Converters (VSCs) has been modelled in software and tested. To validate the voltage conditioning part of the UPFC, and therefore one half of the software model, a hardware model using one three-phase two-level VSC was constructed and used to condition the load voltage. with a supply voltage distortion due to voltage sags. . With both the software and hardware models voltage sag magnitudes between 0% and 100% are considered. along with phase angle jumps between 00 and 400^ to determine the level of compensation power required from the DC voltage source energy storage. The emphasis on the control was to operate the system as fast as possible and therefore provide a degree of compensation to the fastest of unpredictable power quality disturbances. A preferred control technique was identified for each element of the RC-UPFC.
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Books on the topic "Unified Power Flow Controller (UPFC)"

1

Makombe, Tafara. An investigation of a unified power flow controller. Manchester: UMIST, 1997.

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Nabavi-Niaki, Seyed Ali. Modelling and applications of unified power flow controller (UPFC) for power systems. 1996.

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Farrag, Mohamed Emad Eldin Abdelhady. Investigation of advanced control for the unified power flow controller (UPFC). 2002., 2002.

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Yin, Jijun. Unified Power Flow Controller Technology and Application. Elsevier Science & Technology Books, 2017.

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Yin, Jijun. Unified Power Flow Controller Technology and Application. Elsevier Science & Technology Books, 2017.

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Institute Of Electrical and Electronics Engineers. IEEE 2745.1-2019 IEEE Guide for Technology of Unified Power Flow Controller Using Modular Multilevel Converter - Part 1: Functions. IEEE, 2019.

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Book chapters on the topic "Unified Power Flow Controller (UPFC)"

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Abu-Siada, Ahmed, Mohammad A. S. Masoum, Yasser Alharbi, Farhad Shahnia, and A. M. Shiddiq Yunus. "Applications of Unified Power Flow Controller in Wind Energy Conversion System." In Recent Advances in Renewable Energy, 17–48. UAE: Bentham Science Publishers Ltd., 2017. http://dx.doi.org/10.2174/9781681085425117020003.

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Unified power flow controller (UPFC) is one of the Flexible ac Transmission System (FACTS) devices that possess the ability of modulating both active and reactive power at the point of common coupling in four quadrant operational modes. This chapter illustrates UPFC topology, controllers with some case studies for various applications of UPFC in the DFIG-based WECS. New applications for UPFC are proposed to improve the overall performance of a DFIG-based WECS during voltage sag and voltage swell events at the grid side.
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Lalhungliana, Bidhan Malakar, and Saibal Chatterjee. "Investigation on the Application of Fuzzy Logic Controller in Unified Power Flow Controller (UPFC)." In Learning and Analytics in Intelligent Systems, 447–52. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-42363-6_52.

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Adapa, Ram, Stig L. Nilsson, Bjarne R. Andersen, and Yi Yang. "Technical Description of the Unified Power Flow Controller (UPFC) and Its Potential Variations." In CIGRE Green Books, 299–351. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-35386-5_10.

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Adapa, Ram, Stig Nilsson, Bjarne Andersen, and Yi Yang. "Technical Description of the Unified Power Flow Controller (UPFC) and Its Potential Variations." In CIGRE Green Books, 1–52. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-319-71926-9_10-1.

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Adapa, Ram, Stig Nilsson, Bjarne Andersen, and Yi Yang. "Technical Description of the Unified Power Flow Controller (UPFC) and Its Potential Variations." In CIGRE Green Books, 1–53. Cham: Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-319-71926-9_10-2.

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Sadhu, Rajib, and P. S. Bhowmik. "Different Setting of Unified Power Flow Controller (UPFC) and Its Effect on Performance of Distance Relay." In Advances in Intelligent Systems and Computing, 179–90. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-74808-5_16.

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Dai, Wen Jin, and Kai Wang. "Designer of Unified Power Flow Controller." In Communications in Computer and Information Science, 747–54. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-19853-3_110.

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Bhowmick, Suman. "Newton Power Flow Model of the Unified Power Flow Controller." In Flexible AC Transmission Systems (FACTS), 103–38. Boca Raton: Taylor & Francis, 2016.: CRC Press, 2018. http://dx.doi.org/10.1201/9781315222431-4.

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Bhowmick, Suman. "Newton Power Flow Model of the Generalized Unified Power Flow Controller." In Flexible AC Transmission Systems (FACTS), 171–220. Boca Raton: Taylor & Francis, 2016.: CRC Press, 2018. http://dx.doi.org/10.1201/9781315222431-6.

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Baskar, S., N. Kumarappan, and R. Gnanadass. "A Novel Configuration of Unified Power Flow Controller." In Communications in Computer and Information Science, 15–19. Berlin, Heidelberg: Springer Berlin Heidelberg, 2010. http://dx.doi.org/10.1007/978-3-642-15739-4_3.

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Conference papers on the topic "Unified Power Flow Controller (UPFC)"

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Saied, E. M. "Fast reliable unified power flow controller (UPFC) algorithm." In Seventh International Conference on AC and DC Transmission. IEE, 2001. http://dx.doi.org/10.1049/cp:20010563.

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Kazemi, A., H. A. Shayanfar, A. Rabiee, and J. Aghaie. "Power system security improvement using the unified power flow controller (UPFC)." In 2006 IEEE Power India Conference. IEEE, 2006. http://dx.doi.org/10.1109/poweri.2006.1632632.

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Sharma, N. K., and P. P. Jagtap. "Modelling and Application of Unified Power Flow Controller (UPFC)." In Third International Conference on Emerging Trends in Engineering and Technology (ICETET 2010). IEEE, 2010. http://dx.doi.org/10.1109/icetet.2010.169.

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Cai, Hui, Lin Yang, Haiqian Wang, Pengcheng Song, and Zheng Xu. "Application of Unified Power Flow Controller (UPFC) in Jiangsu power system." In 2017 IEEE Power & Energy Society General Meeting (PESGM). IEEE, 2017. http://dx.doi.org/10.1109/pesgm.2017.8274211.

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Shu-jun, Yao, Song Xiao-yan, Wang Yan, Yan Yu-xin, and Yan Zhi. "Research on dynamic characteristics of Unified Power Flow Controller (UPFC)." In 2011 4th International Conference on Electric Utility Deregulation and Restructuring and Power Technologies (DRPT). IEEE, 2011. http://dx.doi.org/10.1109/drpt.2011.5993940.

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Balakrishnan, F. Gopinath, Suresh Kumar Sreedharan, and Juvan Michael. "Transient stability improvement in power system using unified power flow controller (UPFC)." In 2013 Fourth International Conference on Computing, Communications and Networking Technologies (ICCCNT). IEEE, 2013. http://dx.doi.org/10.1109/icccnt.2013.6726841.

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Magadum, Rudresh B., Sateesh N. Dodamani, and D. B. Kulkarni. "Optimal Placement of Unified Power Flow Controller (UPFC) using Fuzzy Logic." In 2019 Fifth International Conference on Electrical Energy Systems (ICEES). IEEE, 2019. http://dx.doi.org/10.1109/icees.2019.8719304.

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Uddin, Muhammad Helal, Akramul Haque, and Asif Mohammed Siddiqee. "Control of a Multi-Pulse SVM Based Unified Power Flow Controller (UPFC)." In 2020 IEEE Region 10 Symposium (TENSYMP). IEEE, 2020. http://dx.doi.org/10.1109/tensymp50017.2020.9230667.

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Ye, C., T. Xu, T. Wang, J. Zhang, and P. Xi. "Research on locating and sizing method of unified power flow controller (UPFC)." In CIRED 2022 Shanghai Workshop. Institution of Engineering and Technology, 2022. http://dx.doi.org/10.1049/icp.2022.2167.

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Sedraoui, K., K. Al-haddad, and G. Olivier. "A new approach for the dynamic control of unified power flow controller (UPFC)." In Proceedings of Power Engineering Society Summer Meeting. IEEE, 2001. http://dx.doi.org/10.1109/pess.2001.970184.

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