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Dissertations / Theses on the topic 'Power system small-signal stability'

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Published: 4 June 2021

Last updated: 25 July 2025

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1

McIlhagger, David. "Acceleration of power system small signal stability analysis." Thesis, Queen's University Belfast, 2007. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.486529.

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Electric power networks comprise large complex interconnections of generation and loads. The generators, and their controllers, are non-linear dynamic systems which on interconnection form a very complex control problem. Traditionally the models used to capture the small signal Rtability of these systems were not highly detailed. This waR jURtified Rince the generation was provided by large centralized power Rtations, however with the current trend towards small scale and diRtributed generation, as provided by.wind farmR and diesel genRetR, the power system modelR require a greater level of de

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2

singhvi, vikas. "Small Signal Stability of an Unregulated Power System." MSSTATE, 2002. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11062002-140310/.

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Rotor angle stability is the ability of the interconnected synchronous machines of a power system to remain in synchronism. This stability problem is concerned with the behavior of one or more synchronous machine after they have been perturbed. These perturbations can be small or large depending upon the type of disturbances considered. The work presented in this thesis is focused on the power system behavior when subjected to small disturbances. The ?small signal? disturbances are considered sufficiently small for the linearization of system equations to be permissible for the purpose of the

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3

Rudraraju, Seetharama raju. "SMALL SIGNAL AND TRANSIENT STABILITY ANALYSIS OF MVDC SHIPBOARD POWER SYSTEM." MSSTATE, 2009. http://sun.library.msstate.edu/ETD-db/theses/available/etd-11052009-170217/.

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Recent developments in high power rated Voltage Source Converters (VSCs) have resulted in their successful application in Multi-Terminal HVDC (MTDC) transmission systems and also have potential in the Medium Voltage DC (MVDC) distribution systems. This work presents the findings of stability studies carried out on a zonal MVDC architecture for the shipboard power distribution system. The stability study is confined to rotor angle stability of the power system, i.e. the transient and small signal stability analysis. The MTDC ring structure similar to MVDC shipboard power system was implemented

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4

Gu, Qun. "Flexible control of electrical power system to enhance small signal stability /." Search for this dissertation online, 2004. http://wwwlib.umi.com/cr/ksu/main.

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5

Fourie, Gert. "Power system stabilizer and controlled series capacitor small-signal stability performance analysis." Thesis, Stellenbosch : Stellenbosch University, 2002. http://hdl.handle.net/10019.1/53013.

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Thesis (MScEng)--University of Stellenbosch, 2002.<br>ENGLISH ABSTRACT: This thesis presents results of a study on the small-signal stability of a single-machine infinite-bus power system. Conditions of generator loading and network impedance are identified that require additional stability support. Two methods of stability enhancement are investigated, namely the power system stabilizer and the controlled series capacitor. Both stabilizers employ the conventional (classic) control structure, and parameters are evaluated for optimum performance using an integral-of-the-squared-error-base

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6

Mudau, Dovhani Selby. "Comparison of three power system software packages for small-signal stability analysis." Master's thesis, University of Cape Town, 2009. http://hdl.handle.net/11427/8935.

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Includes bibliographical references (leaves 131-133).<br>Many power system simulation tools exist for small-signal stability analysis. This is due to the rapid development of computer systems, higher industrial growth and the need for reliable power system simulation tools for efficient planning and control of electric power systems. Three power system small-signal stability simulation tools have been selected for comparison and these are: PSAT 2.1.2, MatNetEig and PacDyn 8.1.1. These combine both open and closed source code industrial-grade power system analysis tools. The objective of this t

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7

Kshatriya, Niraj. "Power System Controller Design by Optimal Eigenstructure Assignment." IEEE Transactions on Power System, 2010. http://hdl.handle.net/1993/4838.

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In this thesis the eigenstructure (eigenvalues and eigenvectors) assignment technique based algorithm has been developed for the design of controllers for power system applications. The application of the algorithm is demonstrated by designing power system stabilizers (PSSs) that are extensively used to address the small-signal rotor angle stability problems in power systems. In the eigenstructure assignment technique, the critical eigenvalues can be relocated as well as their associated eigenvectors can be modified. This method is superior and yield better dynamical performance compared to th

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8

Dong, Zhao Yang. "Advanced methods for small signal stability analysis and control in modern power systems." Phd thesis, School of Electrical and Information Engineering, Graduate School of Engineering, 1998. http://hdl.handle.net/2123/6416.

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9

Restrepo, Jaime Quintero. "A real-time wide-area control for mitigating small-signal instability in large electric power systems." Online access for everyone, 2005. http://www.dissertations.wsu.edu/Dissertations/Spring2005/j%5Fquintero%5F011905.pdf.

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10

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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11

Vance, Katelynn Atkins. "Evaluation of Stability Boundaries in Power Systems." Diss., Virginia Tech, 2017. http://hdl.handle.net/10919/78322.

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Power systems are extremely non-linear systems which require substantial modeling and control efforts to run continuously. The movement of the power system in parameter and state space is often not well understood, thus making it difficult or impossible to determine whether the system is nearing instability. This dissertation demonstrates several ways in which the power system stability boundary can be calculated. The power system movements evaluated here address the effects of inter-area oscillations on the system which occur in the seconds to minutes time period. The first uses gain schedu

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12

Whitlock, Rogers Jr. "Identification of Power System Stability Using Relevant Modes." ScholarWorks@UNO, 2011. http://scholarworks.uno.edu/td/1384.

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The purpose of this investigation is to identify appropriate location of capacitor banks and sources of reactive power by studying power system stability in the vicinity of system equilibrium states. The locations for reactive power sources are determined by identifying those modes of the system that participate most in the system behavior in general and in dictating the final state of the system after experiencing faults or disturbances. To identify the relevant modes of the system that participate most in the system dynamic, we shall make use of modal and participation analysis for different

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13

Li, Chi. "Impedance-Based Stability Analysis in Power Systems with Multiple STATCOMs in Proximity." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/85053.

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Multiple STATCOM units in proximity have been adopted in power transmission systems in order to obtain better voltage regulation and share burdens. Throughout stability assessment in this dissertation, it is shown, for the first time, that STATCOMs could interact with each other in a negative way in the small-signal sense due to their control, causing voltage instability, while loads and transmission lines showed small effects. Since this voltage stability problem is induced by STATCOMs, d-q frame impedance-based stability analysis was used, for the first time, to explore the inherent power sy

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14

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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15

Chompoobutrgool, Yuwa. "Concepts for Power System Small Signal Stability Analysis and Feedback Control Design Considering Synchrophasor Measurements." Licentiate thesis, KTH, Elektriska energisystem, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-103032.

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In the Nordic power network, the existence of poorly damped low-frequency inter-area oscillations (LFIOs) has long affected stability constraints, and thereby, limited power transfer capacity. Adequate damping of inter-area modes is, thus, necessary to secure system operation and ensure system reliability while increasing power transfers. Power system stabilizers (PSS) is a prevalent means to enhance the damping of such modes. With the advent of phasor measurement units (PMUs), it is expected that wide-area damping control (WADC), that is, PSS control using wide-area measurements obtained from

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16

Cao, Jun. "Optimal and small-signal stability improvement of power system operation using multi-terminal VSC-HVDC." Thesis, Queen's University Belfast, 2013. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.602454.

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The thesis is essentially concerned with some theoretical aspects of the economic and stability studies of power systems with great penetration levels of renewable energy. In part I, firstly, the process of incorporation of VSC MTDC model in ACIDC state estimation is described in detail. The proposed approach simultaneously upgrades the estimated values of the state variables, for a unified solution in a single reference frame. The effectiveness of the proposed ACIMTDC state estimation algorithm and the bad data identification process is demonstrated and validated in modified IEEE test system.

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17

Zhao, Shuang. "FORWARD AND BACKWARD EXTENDED PRONY (FBEP) METHOD WITH APPLICATIONS TO POWER SYSTEM SMALL-SIGNAL STABILITY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1480948469362031.

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18

Lin, Qing. "Small-Signal Modeling and Stability Specification of a Hybrid Propulsion System for Aircrafts." Thesis, Virginia Tech, 2021. http://hdl.handle.net/10919/103515.

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This work utilizes the small-signal impedance-based stability analysis method to develop stability assessment criteria for a single-aisle turboelectric aircraft with aft boundary-layer propulsion (STARC-ABL) system. The impedance-based stability analysis method outperforms other stability analysis methods because it does not require detailed information of individual components for system integration, therefore, a system integrator can just require the vendors to make the individual components meet the impedance specifications to ensure whole system stability. This thesis presents models of a

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Aree, Pichai. "Small-signal stability modelling and analysis of power systems with electronically controlled compensation." Thesis, University of Glasgow, 2000. http://theses.gla.ac.uk/2600/.

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Flexible AC Transmission Systems (FACTS) equipment is currently being incorporated into the power system for controlling key networks parameters aiming at improving the power system steady-state and dynamic performances. The vast array of power system analysis tools used by planners and system operators, on a daily basis, for the successful running of the network are to be upgraded to include comprehensive modelling for FACTS plant components. Commensurate with this global objective, this research work is aimed at developing comprehensive power system models of FACTS devices suitable for small

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20

Kanchanaharuthai, Adirak. "Small-Signal Stability, Transient Stability and Voltage Regulation Enhancement of Power Systems with Distributed Renewable Energy Resources." Case Western Reserve University School of Graduate Studies / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=case1321988036.

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21

Wenjuan, D. U. "Power System Small Signal Oscillation Stability as Affected by Static Synchronous Compensator (STATCOM) and Energy Storage System (ESS) Control." Thesis, University of Bath, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.516943.

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Mahmoud, G. A. "A new method of assessing power system stability." Thesis, University of Newcastle Upon Tyne, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372306.

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23

Tinsley, Carl Terrie III. "Modeling of Multi-Pulse Transformer/Rectifier Units in Power Distribution Systems." Thesis, Virginia Tech, 2003. http://hdl.handle.net/10919/34655.

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Multi-pulse transformer/rectifier systems are becoming increasingly popular in power distribution systems. These topologies can be found in aircraft power systems, motor drives, and other applications that require low total harmonic distortion (THD) of the input line current. This increase in the use of multi-pulse transformer topologies has led to the need to study large systems composed of said units and their interactions within the system. There is also an interest in developing small-signal models so that stability issues can be studied. This thesis presents a procedure for the aver

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Hodgson, J. E. "A comprehensive method to estimate power system stability constraint costs." Thesis, University of Bath, 1997. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.362150.

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25

Erlich, I. Fischer A. U. "Fast Assessment of Small-Signal Oscillatory Stability in Large Interconnected Power Systems, Balkan Power Conference BPC 2002, June 2002, Belgrade, Yugoslavia." Gerhard-Mercator-Universitaet Duisburg, 2003. http://www.ub.uni-duisburg.de/ETD-db/theses/available/duett-04142003-140806/.

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This paper deals with suitable approaches for fast assessment of oscillatory stability of large interconnected power systems within power system operation. Beside voltage stability and transient stability, oscillatory stability has to be assessed, too. It can be shown, that parallel eigenvalue computation using a parallel variant of Arnoldi method can reduce the time necessary for eigenvalue computation of large power systems.

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26

Kaberere, Keren Kanuthu. "Variations in modeling and algorithmic factors impacting on small-signal stability results : assessment of five industrial-grade power system simulation tools." Doctoral thesis, University of Cape Town, 2006. http://hdl.handle.net/11427/5197.

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Includes bibliographical references.<br>There are several industrial-grade simulation tools, used for small-signal stability studies, that are commercially available on the market. However, these tools differ in their components modeling and solution methodology. Therefore, different simulation tools can give different results for the same power system model. In this thesis, five industrial-grde simulation tools - PSS/E, PowerFactory, EUROSTAG, SSAT, and MatNetEig - are investigated. The features and capabilities of the five tools are compared based on componenets modeling, numerical methodolo

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27

Bu, Siqi. "Probabilistic small-signal stability analysis and improved transient stability control strategy of grid-connected doubly fed induction generators in large-scale power systems." Thesis, Queen's University Belfast, 2012. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.580121.

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Growing numbers of large-scale wind farms have been recently established and connected to conventional power grid. With the rising level of penetration, the impact of wind power sources on the grid has extended from simple power quality problems to power grid security and stability, frequency and peak regulation, and economic dispatch issues. Therefore, it has significant theoretical and practical values to comprehensively investigate the effect of grid-connected wind power sources on the power system stability. In order to study the influence of considerable stochastic characteristic of wind

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Antoine, Olivier. "Wide area measurement-based approach for assessing the power flow influence on inter-area oscillations." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209368.

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Power systems have been historically designed at a time when the production was<p>centralized and the electricity had to be transmitted to the loads from the closest power<p>plant. Nowadays, there is an increasing integration of decentralized and intermittent pro-<p>duction. Moreover, the energy market coupling has enabled the transfer of electric power<p>for economical purposes. Also, former isolated power systems are now interconnected for<p>reliability and financial reasons.<p>All of these changes make difficult to predict the future behavior of the grid. Studies<p>are done in order to plan

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Men, Kun. "Long term voltage stability analysis for small disturbances." [College Station, Tex. : Texas A&M University, 2007. http://hdl.handle.net/1969.1/ETD-TAMU-2499.

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Wu, Zhongyu. "Wide Area Analysis and Application in Power System." Thesis, Virginia Tech, 2009. http://hdl.handle.net/10919/36427.

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Frequency monitoring network (FNET) is an Internet based GPS synchronized wide-area frequency monitoring network deployed at distribution level. At first part of this thesis, FNET structure and characteristics are introduced. After analysis and smoothing FDR signals, the algorithm of event trigger is present with Visual C++ DLL programming. Estimation of disturbance location method is discussed based on the time delay of arriving (TDOA) in the second part of this work. In this section, author shows the multiply method to calculate event time, which is important when deal with pre-disturbance

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Cvetkovic, Igor. "Modeling and Control of Voltage-Controlling Converters for Enhanced Operation of Multi-Source Power Systems." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/85850.

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The unconventional improvements in the power electronics field have been the primary reason for massive deployment of renewable energy sources in the electrical power grid over the past several decades. This needed trend, together with the increasing penetration of micro-, and nano- grids, is bringing significant improvements in system controllability, performance, and energy availability, but is fundamentally changing the nature of electronically-interfaced sources and loads, altering their conventionally mild aggregate dynamics, and inflicting low- and high- frequency dynamic interactions th

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Wiltshire, Richard Andrew. "Analysis of distrubances in large interconnected power systems." Thesis, Queensland University of Technology, 2007. https://eprints.qut.edu.au/35773/1/Richard_Wiltshire_Thesis.pdf.

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World economies increasingly demand reliable and economical power supply and distribution. To achieve this aim the majority of power systems are becoming interconnected, with several power utilities supplying the one large network. One problem that occurs in a large interconnected power system is the regular occurrence of system disturbances which can result in the creation of intra-area oscillating modes. These modes can be regarded as the transient responses of the power system to excitation, which are generally characterised as decaying sinusoids. For a power system operating ideally these

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Obradovic, Danilo. "Coordinated Frequency Control Between Interconnected AC/DC Systems." Licentiate thesis, KTH, Elkraftteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280156.

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With ambitions of reducing the environmental pollution, power systems integrate larger shares of Renewable Energy Sources (RES) to phase out conventional thermal and nuclear generators. Since RES (such as wind and solar power) are connected to the grid through power electronics devices, they do not inherently contribute to system inertia. With decreasing inertia, the Instantaneous Frequency Deviation (IFD), which follows a power unbalance, is significantly impacted. Frequency Containment Reserves (FCR) are designed to provide a fast dynamic response, counteract power imbalances and stabilize t

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Almada, Leandro Momenté [UNESP]. "O modelo de injeção de potência do TCSC e sua aplicação no estudo da estabilidade a pequenas perturbações." Universidade Estadual Paulista (UNESP), 2012. http://hdl.handle.net/11449/87103.

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Made available in DSpace on 2014-06-11T19:22:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2012-06-01Bitstream added on 2014-06-13T19:08:06Z : No. of bitstreams: 1 almada_lm_me_ilha.pdf: 552123 bytes, checksum: bb24b3e82f3436a173c7b23090715999 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>O principal objetivo deste trabalho é a utilização do modelo de injeção de potência do dispositivo FACTS TCSC (Thyris-tor Controlled Series Capacitor) na análise da estabilidade a pequenas pertur

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Louganski, Konstantin P. "Modeling and Analysis of a Dc Power Distribution System in 21st Century Airlifters." Thesis, Virginia Tech, 1999. http://hdl.handle.net/10919/35514.

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A DC power distribution system (PDS) of a transport aircraft was modeled and analyzed using MATLAB/Simulink software. The multi-level modeling concept was used as a modeling approach, which assumes modeling subsystem of the PDS at three different levels of complexity. The subsystem models were implemented in Simulink and combined into the whole PDS model according to certain interconnection rules. Effective modeling of different scenarios of operation was achieved by mixing subsystem models of different levels in one PDS model. Linearized models were obtained from the nonlinear PDS model f

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Alahmad, Bashar. "The role of location of low inertia in power systems." Thesis, Uppsala universitet, Institutionen för elektroteknik, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-444863.

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The plans to reduce the energy-related greenhouse gas emissions stimulate the deployment of electronically interfaced renewable resources. The increased penetration of such intermittent sources together with phasing conventional power plants out and the installation of High Voltage Direct Current (HVDC) links for long-distance more efficient transmission, reduces the stored inertia in any electrical grid. This leads to a more vulnerable power system and increases the significance of studying the corresponding stability aspects. Decreasing the inertial response of a power system deteriorates th

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Nasri, Amin. "On the Dynamics and Statics of Power System Operation : Optimal Utilization of FACTS Devicesand Management of Wind Power Uncertainty." Doctoral thesis, KTH, Elektriska energisystem, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-154576.

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Nowadays, power systems are dealing with some new challenges raisedby the major changes that have been taken place since 80’s, e.g., deregu-lation in electricity markets, significant increase of electricity demands andmore recently large-scale integration of renewable energy resources such aswind power. Therefore, system operators must make some adjustments toaccommodate these changes into the future of power systems.One of the main challenges is maintaining the system stability since theextra stress caused by the above changes reduces the stability margin, andmay lead to rise of many undesira

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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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Pupin, Carlos Eduardo [UNESP]. "Estudo da estabilidade a pequenas perturbações de sistemas elétricos multimáquinas com dispositivos FACTS do tipo SSSC e controladores suplementares (POD e PSS)." Universidade Estadual Paulista (UNESP), 2009. http://hdl.handle.net/11449/87113.

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Made available in DSpace on 2014-06-11T19:22:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2009-05-28Bitstream added on 2014-06-13T20:08:35Z : No. of bitstreams: 1 pupin_ce_me_ilha.pdf: 1801957 bytes, checksum: 06dbcbacdd038bf23cf8b0bfc982dbeb (MD5)<br>Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)<br>Este trabalho apresenta estudos referentes à estabilidade a pequenas perturbações do sistema elétrico de potência, considerando a atuação de FACTS para o amortecimento das oscilações eletromecânicas de baixa freqüência. É abordado o dispositivo FACTS SSSC (Static Syn

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Almada, Leandro Momenté. "O modelo de injeção de potência do TCSC e sua aplicação no estudo da estabilidade a pequenas perturbações /." Ilha Solteira: [s.n.], 2012. http://hdl.handle.net/11449/87103.

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Orientador: Percival Bueno de Araujo<br>Banca: Laurence Duarte Colvara<br>Banca: Gideon Villar Leandro<br>Resumo: O principal objetivo deste trabalho é a utilização do modelo de injeção de potência do dispositivo FACTS TCSC (Thyris-tor Controlled Series Capacitor) na análise da estabilidade a pequenas perturbações de sistemas elétricos de potência. Para atingir este objetivo é deduzido o modelo de injeção de potência do TCSC, cujo equacionamento é adicionado ao Modelo de Sensibilidade de Po-tência (MSP), utilizado para representar o sistema elétrico de potência (SEP). Para o amortecimento das

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Loen, Ida Larsen. "Stability Analysis of Small Hydro Power Plants : Model Verification and Analysis of the Impacts of the Voltage Regulation System." Thesis, Norges teknisk-naturvitenskapelige universitet, Institutt for elkraftteknikk, 2014. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-24330.

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This master thesis concerns stability problems and protection related to small hydro distributed generation. Behavior related to the voltage regulator and the excitation limiters is the main focus in this report. The report consists of two main parts. Part one concerns laboratory studies with focus on the characteristics of the laboratory model, and system modeling and validation. In the other part of the thesis, the validated model is used to study the effect of the excitation limiters and their influence on the system response and performance. These studies are useful to obtain knowledge con

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Pupin, Carlos Eduardo. "Estudo da estabilidade a pequenas perturbações de sistemas elétricos multimáquinas com dispositivos FACTS do tipo SSSC e controladores suplementares (POD e PSS) /." Ilha Solteira : [s.n.], 2009. http://hdl.handle.net/11449/87113.

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Orientador: Percival Bueno de Araujo<br>Banca: Francisco Villarreal Alvarado<br>Banca: Élcio Precioso de Paiva<br>Resumo: Este trabalho apresenta estudos referentes à estabilidade a pequenas perturbações do sistema elétrico de potência, considerando a atuação de FACTS para o amortecimento das oscilações eletromecânicas de baixa freqüência. É abordado o dispositivo FACTS SSSC (Static Synchronous Series Compensator). Para este fim o sistema elétrico é modelado, modificando-se o Modelo de Sensibilidade de Potência para se inserir o compensador. Para melhorar a estabilidade do sistema desenvolvido

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Warichet, Jacques. "From the measurement of synchrophasors to the identification of inter-area oscillations in power transmission systems." Doctoral thesis, Universite Libre de Bruxelles, 2013. http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/209511.

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In the early 1980s, relaying engineers conceived a technology allowing a huge step forward in the monitoring of power system behavior: the synchrophasor, i.e. the estimation of a phasor representation - amplitude and phase - of a sinusoidal waveform at a given point in time thanks to highly accurate time synchronization of a digital relay. By measuring synchrophasors across the power system several times per second, and centralizing the appropriate information in a hierarchical way through a telecommunication network link, it is now possible to continuously monitor the state of very large syst

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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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Parveen, Tania. "Composite load model decomposition : induction motor contribution." Thesis, Queensland University of Technology, 2009. https://eprints.qut.edu.au/31301/1/Tania_Parveen_Thesis.pdf.

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In this thesis, a new technique has been developed for determining the composition of a collection of loads including induction motors. The application would be to provide a representation of the dynamic electrical load of Brisbane so that the ability of the power system to survive a given fault can be predicted. Most of the work on load modelling to date has been on post disturbance analysis, not on continuous on-line models for loads. The post disturbance methods are unsuitable for load modelling where the aim is to determine the control action or a safety margin for a specific disturbance.

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Pina, Aline Petean [UNESP]. "Comparação entre modelos do dispositivo FACTS STATCOM para o estudo da estabilidade a pequenas perturbações." Universidade Estadual Paulista (UNESP), 2010. http://hdl.handle.net/11449/87089.

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Made available in DSpace on 2014-06-11T19:22:32Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-05-28Bitstream added on 2014-06-13T19:06:57Z : No. of bitstreams: 1 pina_ap_me_ilha.pdf: 797000 bytes, checksum: d243ccbbde4d3e77f76b36fd34886251 (MD5)<br>Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)<br>Este trabalho apresenta estudos referentes à modelagem do dispositivo FACTS STATCOM para posterior inclusão nas equações do Modelo de Sensibilidade de Potência multimáquinas. O objetivo final da modelagem é o estudo da estabilidade a pequenas perturbações de sistemas

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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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Pina, Aline Petean. "Comparação entre modelos do dispositivo FACTS STATCOM para o estudo da estabilidade a pequenas perturbações /." Ilha Solteira : [s.n.], 2010. http://hdl.handle.net/11449/87089.

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Orientador: Percival Bueno de Araujo<br>Banca: Anna Diva Plasencia Lotufo<br>Banca: Igor Kopcak<br>Resumo: Este trabalho apresenta estudos referentes à modelagem do dispositivo FACTS STATCOM para posterior inclusão nas equações do Modelo de Sensibilidade de Potência multimáquinas. O objetivo final da modelagem é o estudo da estabilidade a pequenas perturbações de sistemas elétricos de potência. São considerados dois modelos para o dispositivo: um primeiro modelo permite apenas a compensação de potência reativa, enquanto que num segundo modelo é possível a compensação tanto de potência ativa co

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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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Rodrigues, Carolina Ribeiro. "Utilização da modelagem politópica para a avaliação da margem de estabilidade a pequenas perturbações em sistemas de potência." Universidade de São Paulo, 2007. http://www.teses.usp.br/teses/disponiveis/18/18154/tde-04092007-083807/.

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O presente trabalho propõe a utilização conjunta dos conceitos de modelagem politópica e estabilidade quadrática para avaliação da robustez de desempenho de estabilizadores de sistemas de potência (ou PSSs, do inglês, Power System Stabilizers). Controladores de amortecimento do tipo PSS têm sido amplamente utilizados em sistemas elétricos de potência desde o final da década de 60. A maioria destes estabilizadores que hoje estão em operação foi projetada segundo uma abordagem clássica, que envolve a linearização das equações do sistema em torno de um ponto de equilíbrio e controle através de um

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