Power System Oscillations

Author : Graham Rogers
Publisher : Springer Science & Business Media
Page : 333 pages
File Size : 52,6 Mb
Release : 2012-12-06
Category : Technology & Engineering
ISBN : 9781461545613

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Power System Oscillations by Graham Rogers Pdf

Power System Oscillations deals with the analysis and control of low frequency oscillations in the 0.2-3 Hz range, which are a characteristic of interconnected power systems. Small variations in system load excite the oscillations, which must be damped effectively to maintain secure and stable system operation. No warning is given for the occurrence of growing oscillations caused by oscillatory instability, since a change in the system's operating condition may cause the transition from stable to unstable. If not limited by nonlinearities, unstable oscillations may lead to rapid system collapse. Thus, it is difficult for operators to intervene manually to restore the system's stability. It follows that it is important to analyze a system's oscillatory behavior in order to understand the system's limits. If the limits imposed by oscillatory instability are too low, they may be increased by the installation of special stabilizing controls. Since the late 60s when this phenomena was first observed in North American systems, intensive research has resulted in design and installation of stabilizing controls known as power system stabilizers (PSS). The design, location and tuning of PSS require special analytical tools. This book addresses these questions in a modal analysis framework, with transient simulation as a measure of controlled system performance. After discussing the nature of the oscillations, the design of the PSS is discussed extensively using modal analysis and frequency response. In the scenario of the restructured power system, the performance of power system damping controls must be insensitive to parameter uncertainties. Power system stabilizers, when well tuned, are shown to be robust using the techniques of modern control theory. The design of damping controls, which operate through electronic power system devices (FACTS), is also discussed. There are many worked examples throughout the text. The Power System Toolbox© for use with MATLAB® is used to perform all of the analyses used in this book. The text is based on the author's experience of over 40 years as an engineer in the power industry and as an educator.

Author : Arturo Roman Messina
Publisher : Springer Science & Business Media
Page : 278 pages
File Size : 44,5 Mb
Release : 2009-04-21
Category : Technology & Engineering
ISBN : 9780387895307

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Inter-area Oscillations in Power Systems by Arturo Roman Messina Pdf

The study of complex dynamic processes governed by nonlinear and nonstationary characteristics is a problem of great importance in the analysis and control of power system oscillatory behavior. Power system dynamic processes are highly random, nonlinear to some extent, and intrinsically nonstationary even over short time intervals as in the case of severe transient oscillations in which switching events and control actions interact in a complex manner. Phenomena observed in power system oscillatory dynamics are diverse and complex. Measured ambient data are known to exhibit noisy, nonstationary fluctuations resulting primarily from small magnitude, random changes in load, driven by low-scale motions or nonlinear trends originating from slow control actions or changes in operating conditions. Forced oscillations resulting from major cascading events, on the other hand, may contain motions with a broad range of scales and can be highly nonlinear and time-varying. Prediction of temporal dynamics, with the ultimate application to real-time system monitoring, protection and control, remains a major research challenge due to the complexity of the driving dynamic and control processes operating on various temporal scales that can become dynamically involved. An understanding of system dynamics is critical for reliable inference of the underlying mechanisms in the observed oscillations and is needed for the development of effective wide-area measurement and control systems, and for improved operational reliability.

Author : Haifeng Wang,Wenjuan Du
Publisher : Springer
Page : 394 pages
File Size : 55,9 Mb
Release : 2016-03-30
Category : Technology & Engineering
ISBN : 9781489976963

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Analysis and Damping Control of Power System Low-frequency Oscillations by Haifeng Wang,Wenjuan Du Pdf

This book presents the research and development results on power systems oscillations in three categories of analytical methods. First is damping torque analysis which was proposed in 1960’s, further developed between 1980-1990, and widely used in industry. Second is modal analysis which developed between the 1980’s and 1990’s as the most powerful method. Finally the linearized equal-area criterion analysis that is proposed and developed recently. The book covers three main types of controllers: Power System Stabilizer (PSS), FACTS (Flexible AC Transmission Systems) stabilizer, and ESS (Energy Storage Systems) stabilizer. The book provides a systematic and detailed introduction on the subject as the reference for industry applications and academic research.

Author : Bikash Pal,Balarko Chaudhuri
Publisher : Springer Science & Business Media
Page : 207 pages
File Size : 45,7 Mb
Release : 2006-07-02
Category : Technology & Engineering
ISBN : 9780387259505

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Robust Control in Power Systems by Bikash Pal,Balarko Chaudhuri Pdf

Robust Control in Power Systems deals with the applications of new techniques in linear system theory to control low frequency oscillations in power systems. The book specifically focuses on the analysis and damping of inter-area oscillations in the systems which are in the range of 0.2-1 Hz. The damping control action is injected through high power electronic devices known as flexible AC transmission system (FACTS) controllers. Three commonly used FACTS controllers: controllable series capacitors (CSCs) controllable phase shifters (CPSs) and static var compensators (SVCs) have been used in this book to control the inter-area oscillations. The overview of linear system theory from the perspective of power system control is explained through examples. The damping control design is formulated as norm optimization problem. The H_infinity, H2 norm of properly defined transfer functions are minimized in linear matrix inequalities (LMI) framework to obtain desired performance and stability robustness. Both centralized and decentralized control structures are used. Usually the transmission of feedback signal from a remote location encounters delays making it difficult to control the system. Smith predictor based approach has been successfully explored in this book as a solution to such a problem. Robust Control in Power Systems will be valuable to academicians in the areas of power, control and system theory, as well as professionals in the power industry.

Author : Debasish Mondal,Abhijit Chakrabarti,Aparajita Sengupta
Publisher : Academic Press
Page : 420 pages
File Size : 48,9 Mb
Release : 2020-02-20
Category : Technology & Engineering
ISBN : 9780128177693

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Power System Small Signal Stability Analysis and Control by Debasish Mondal,Abhijit Chakrabarti,Aparajita Sengupta Pdf

Power System Small Signal Stability Analysis and Control, Second Edition analyzes severe outages due to the sustained growth of small signal oscillations in modern interconnected power systems. This fully revised edition addresses the continued expansion of power systems and the rapid upgrade to smart grid technologies that call for the implementation of robust and optimal controls. With a new chapter on MATLAB programs, this book describes how the application of power system damping controllers such as Power System Stabilizers and Flexible Alternating Current Transmission System controllers—namely Static Var Compensator and Thyristor Controlled Series Compensator —can guard against system disruptions. Detailed mathematical derivations, illustrated case studies, the application of soft computation techniques, designs of robust controllers, and end-of-chapter exercises make it a useful resource to researchers, practicing engineers, and post-graduates in electrical engineering. Considers power system small signal stability and provides various techniques to mitigate it Offers a new and straightforward method of finding the optimal location of PSS in a multi-machine power system Includes MATLAB programs and simulations for practical applications

Author : M. A. Pai,D. P. Sen Gupta,K. R. Padiyar
Publisher : Alpha Science Int'l Ltd.
Page : 308 pages
File Size : 55,7 Mb
Release : 2004
Category : Business & Economics
ISBN : 1842652060

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Small Signal Analysis of Power Systems by M. A. Pai,D. P. Sen Gupta,K. R. Padiyar Pdf

Power system oscillations without a big disturbance occur spontaneously in a power system and if they are not damped out properly may lead to grid failure. In this book we examine the methodology to study this phenomenon from several angles. Modeling the system to investigate these oscillations is given top priority along with physical interpretation of the phenomenon. The book covers low frequency 1-3 Hz as well as sub synchronous oscillations in the 10-50 Hz range. The latter are called torsional oscillations. Design of Power system stabilizers as well as damping techniques for sub synchronous oscillations are discussed. Modeling and design of FACTS devices is included. The small signal analysis of multimachine systems along with the selective computation of Eigen value(s) of interest in a large system is presented.

Author : Xiaorong Xie
Publisher : Springer Nature
Page : 251 pages
File Size : 55,9 Mb
Release : 2024-06-16
Category : Electronic
ISBN : 9783031533570

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Oscillatory Stability of Converter-Dominated Power Systems by Xiaorong Xie Pdf

Author : Johannes Falnes,Adi Kurniawan
Publisher : Cambridge University Press
Page : 319 pages
File Size : 52,7 Mb
Release : 2020-05-28
Category : Science
ISBN : 9781108481663

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Ocean Waves and Oscillating Systems by Johannes Falnes,Adi Kurniawan Pdf

Understand the absorption of energy from ocean waves by means of oscillating systems with this useful new edition. Essential for engineers, researchers, and graduate students, and an indispensable tool for those who work in this field.

Author : Peter W. Sauer,M. A. Pai
Publisher : Unknown
Page : 376 pages
File Size : 52,9 Mb
Release : 1998
Category : Technology & Engineering
ISBN : STANFORD:36105019309439

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Power System Dynamics and Stability by Peter W. Sauer,M. A. Pai Pdf

For a one-semester senior or beginning graduate level course in power system dynamics. This text begins with the fundamental laws for basic devices and systems in a mathematical modeling context. It includes systematic derivations of standard synchronous machine models with their fundamental controls. These individual models are interconnected for system analysis and simulation. Singular perturbation is used to derive and explain reduced-order models.

Author : Federico Milano,Alvaro Ortega Manjavacas
Publisher : John Wiley & Sons
Page : 360 pages
File Size : 41,9 Mb
Release : 2020-07-07
Category : Science
ISBN : 9781119551874

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Frequency Variations in Power Systems by Federico Milano,Alvaro Ortega Manjavacas Pdf

Frequency Variations in Power Systems: Modeling, State Estimation and Control presents the Frequency Divider Formula (FDF); a unique approach that defines, calculates and estimates the frequency in electrical energy systems. This authoritative book is written by two noted researchers on the topic. They define the meaning of frequency of an electrical quantity (such as voltage and current) in non-stationary conditions (for example the frequency is not equal to the nominal one) and pose the foundation of the frequency divider formula. The book describes the consequences of using a variable frequency in power system modelling and simulations, in state estimation and frequency control applications. In addition, the authors include a discussion on the applications of the frequency divider in systems where part of the generation is not based on synchronous machines, but rather on converter-interfaced energy resources, such as wind and solar power plants. This important book: Offers a review that clearly defines and shows how the Frequency Divider Formula can be applied Discusses the link between frequency and energy in power systems Presents a unified vision that accurately reveals the common thread that links modelling, control and estimation Includes information on the many implications that “local frequency variations” have on power system dynamics and control Contains several numerical examples Written for researchers, academic staff members, students, specialised consultants and professional software developers, Frequency Variations in Power Systems questions the conventional transient stability model of power system and proposes a new formulation.

Author : Xi-Fan Wang,Yonghua Song,Malcolm Irving
Publisher : Springer Science & Business Media
Page : 561 pages
File Size : 50,5 Mb
Release : 2010-06-07
Category : Technology & Engineering
ISBN : 9780387728537

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Modern Power Systems Analysis by Xi-Fan Wang,Yonghua Song,Malcolm Irving Pdf

The capability of effectively analyzing complex systems is fundamental to the operation, management and planning of power systems. This book offers broad coverage of essential power system concepts and features a complete and in-depth account of all the latest developments, including Power Flow Analysis in Market Environment; Power Flow Calculation of AC/DC Interconnected Systems and Power Flow Control and Calculation for Systems Having FACTS Devices and recent results in system stability.

Author : Kenneth Eloghene Okedu
Publisher : BoD – Books on Demand
Page : 112 pages
File Size : 52,7 Mb
Release : 2019-04-10
Category : Technology & Engineering
ISBN : 9781789857979

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Power System Stability by Kenneth Eloghene Okedu Pdf

The target readers for this book are academics and engineers working in universities, research institutes and industry sectors wishing to enhance their knowledge about power system stability. Readers of this book should gain technical ideas and special experience with detailed information about small signal stability, dynamics, modeling, power oscillations and electrical power infrastructures relating to power system stability. The contents of this book provide many solutions to problems that can be integrated into larger research findings and projects. The book addresses some power system stability studies such as an overview of power systems and stability criteria, applications of the trajectory sensitivity theory to small signal stability, power system small signal stability in grid connected smart park, power system dynamics and modeling. The book also describes some recent developments in power oscillations due to ferroresonance, sub synchronous resonance and effects of climate change in electric power infrastructures.

Author : Paul M. Anderson,Bajarang L. Agrawal,James E. Van Ness
Publisher : Unknown
Page : 296 pages
File Size : 46,5 Mb
Release : 1990
Category : Science
ISBN : UOM:39015018982846

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Subsynchronous Resonance in Power Systems by Paul M. Anderson,Bajarang L. Agrawal,James E. Van Ness Pdf

Author : Linash Kunjumuhammed,Stefanie Kuenzel,Bikash Pal
Publisher : Academic Press
Page : 268 pages
File Size : 43,9 Mb
Release : 2019-10-02
Category : Technology & Engineering
ISBN : 9780128112540

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Simulation of Power System with Renewables by Linash Kunjumuhammed,Stefanie Kuenzel,Bikash Pal Pdf

Simulation of Power System with Renewables provides details on the modelling and efficient implementation of MATLAB, particularly with a renewable energy driven power system. The book presents a step-by-step approach to modelling implementation, including all major components used in current power systems operation, giving the reader the opportunity to learn how to gather models for conventional generators, wind farms, solar plants and FACTS control devices. Users will find this to be a central resource for modelling, building and simulating renewable power systems, including discussions on its limitations, assumptions on the model, and the implementation and analysis of the system. Presents worked examples and equations in each chapter that address system limitations and flexibility Provides step-by-step guidance for building and simulating models with required data Contains case studies on a number of devices, including FACTS, and renewable generation

Author : Jan Machowski,Zbigniew Lubosny,Janusz W. Bialek,James R. Bumby
Publisher : John Wiley & Sons
Page : 1568 pages
File Size : 47,6 Mb
Release : 2020-02-25
Category : Technology & Engineering
ISBN : 9781119526360

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Power System Dynamics by Jan Machowski,Zbigniew Lubosny,Janusz W. Bialek,James R. Bumby Pdf

An authoritative guide to the most up-to-date information on power system dynamics The revised third edition of Power System Dynamics and Stability contains a comprehensive, state-of-the-art review of information on the topic. The third edition continues the successful approach of the first and second editions by progressing from simplicity to complexity. It places the emphasis first on understanding the underlying physical principles before proceeding to more complex models and algorithms. The book is illustrated by a large number of diagrams and examples. The third edition of Power System Dynamics and Stability explores the influence of wind farms and virtual power plants, power plants inertia and control strategy on power system stability. The authors—noted experts on the topic—cover a range of new and expanded topics including: Wide-area monitoring and control systems. Improvement of power system stability by optimization of control systems parameters. Impact of renewable energy sources on power system dynamics. The role of power system stability in planning of power system operation and transmission network expansion. Real regulators of synchronous generators and field tests. Selectivity of power system protections at power swings in power system. Criteria for switching operations in transmission networks. Influence of automatic control of a tap changing step-up transformer on the power capability area of the generating unit. Mathematical models of power system components such as HVDC links, wind and photovoltaic power plants. Data of sample (benchmark) test systems. Power System Dynamics: Stability and Control, Third Edition is an essential resource for students of electrical engineering and for practicing engineers and researchers who need the most current information available on the topic.