Frequency Variations In Power Systems

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Frequency Variations in Power Systems

Federico Milano,Alvaro Ortega Manjavacas
Frequency Variations in Power Systems Book PDF

Author : Federico Milano,Alvaro Ortega Manjavacas
Publisher : John Wiley & Sons
Page : 360 pages
File Size : 43,7 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.

Electrical Power Systems Quality

Roger C. Dugan,Surya Santoso,Mark F. McGranaghan,H. Wayne Beaty
Electrical Power Systems Quality Book PDF

Author : Roger C. Dugan,Surya Santoso,Mark F. McGranaghan,H. Wayne Beaty
Publisher : McGraw Hill Professional
Page : 548 pages
File Size : 50,9 Mb
Release : 2002-11-26
Category : Technology
ISBN : 007138622X

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Electrical Power Systems Quality by Roger C. Dugan,Surya Santoso,Mark F. McGranaghan,H. Wayne Beaty Pdf

* Basic power quality strategies and methods to protect electronic systems * Nearly twice the size of the last edition--new chapters on distributed generation and benchmarking--over 200 pages of new material

Frequency Variations in Power Systems

Federico Milano,Alvaro Ortega Manjavacas
Frequency Variations in Power Systems Book PDF

Author : Federico Milano,Alvaro Ortega Manjavacas
Publisher : John Wiley & Sons
Page : 360 pages
File Size : 43,9 Mb
Release : 2020-06-16
Category : Science
ISBN : 9781119551898

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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.

Power Quality in Power Systems and Electrical Machines

Ewald Fuchs,Mohammad A. S. Masoum
Power Quality in Power Systems and Electrical Machines Book PDF

Author : Ewald Fuchs,Mohammad A. S. Masoum
Publisher : Academic Press
Page : 1140 pages
File Size : 55,7 Mb
Release : 2015-07-14
Category : Technology & Engineering
ISBN : 9780128009888

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Power Quality in Power Systems and Electrical Machines by Ewald Fuchs,Mohammad A. S. Masoum Pdf

The second edition of this must-have reference covers power quality issues in four parts, including new discussions related to renewable energy systems. The first part of the book provides background on causes, effects, standards, and measurements of power quality and harmonics. Once the basics are established the authors move on to harmonic modeling of power systems, including components and apparatus (electric machines). The final part of the book is devoted to power quality mitigation approaches and devices, and the fourth part extends the analysis to power quality solutions for renewable energy systems. Throughout the book worked examples and exercises provide practical applications, and tables, charts, and graphs offer useful data for the modeling and analysis of power quality issues. Provides theoretical and practical insight into power quality problems of electric machines and systems 134 practical application (example) problems with solutions 125 problems at the end of chapters dealing with practical applications 924 references, mostly journal articles and conference papers, as well as national and international standards and guidelines

Power System Oscillations

Graham Rogers
Power System Oscillations Book PDF

Author : Graham Rogers
Publisher : Springer Science & Business Media
Page : 333 pages
File Size : 50,7 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.

Virtual Inertia Synthesis and Control

Thongchart Kerdphol,Fathin Saifur Rahman,Masayuki Watanabe,Yasunori Mitani
Virtual Inertia Synthesis and Control Book PDF

Author : Thongchart Kerdphol,Fathin Saifur Rahman,Masayuki Watanabe,Yasunori Mitani
Publisher : Springer Nature
Page : 259 pages
File Size : 40,5 Mb
Release : 2020-11-28
Category : Technology & Engineering
ISBN : 9783030579616

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Virtual Inertia Synthesis and Control by Thongchart Kerdphol,Fathin Saifur Rahman,Masayuki Watanabe,Yasunori Mitani Pdf

This book provides a thorough understanding of the basic principles, synthesis, analysis, and control of virtual inertia systems. It uses the latest technical tools to mitigate power system stability and control problems under the presence of high distributed generators (DGs) and renewable energy sources (RESs) penetration. This book uses a simple virtual inertia control structure based on the frequency response model, complemented with various control methods and algorithms to achieve an adaptive virtual inertia control respect to the frequency stability and control issues. The chapters capture the important aspects in virtual inertia synthesis and control with the objective of solving the stability and control problems regarding the changes of system inertia caused by the integration of DGs/RESs. Different topics on the synthesis and application of virtual inertia are thoroughly covered with the description and analysis of numerous conventional and modern control methods for enhancing the full spectrum of power system stability and control. Filled with illustrative examples, this book gives the necessary fundamentals and insight into practical aspects. This book stimulates further research and offers practical solutions to real-world power system stability and control problems with respect to the system inertia variation triggered by the integration of RESs/DGs. It will be of use to engineers, academic researchers, and university students interested in power systems dynamics, analysis, stability and control.

Power Quality

R. Sastry Vedam,Mulukutla S. Sarma
Power Quality Book PDF

Author : R. Sastry Vedam,Mulukutla S. Sarma
Publisher : CRC Press
Page : 304 pages
File Size : 51,6 Mb
Release : 2017-12-19
Category : Technology & Engineering
ISBN : 9781420064827

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Power Quality by R. Sastry Vedam,Mulukutla S. Sarma Pdf

Both deregulation in the electrical supply industry and the creation of new electricity markets present electric utility companies with the challenge of becoming more efficient without compromising quality of service. Providing new solutions for this newly deregulated paradigm, Power Quality: VAR Compensation in Power Systems presents comprehensive coverage of power quality, harmonics, and static var compensators in one single volume. The book explains how to ensure that power quality is not affected by the harmonics generated by power electronic equipment and explains how to reduce labor costs and increase reliability of supply by employing a single pole autoreclosing scheme. It also addresses how to analyze frequency response of current transformers and voltage transformers while measuring harmonics. Based on the authors’ extensive experience in the electric supply industry, Power Quality enables engineers to meet the demands of increased loads, strengthen their transmission systems, and ensure reliable electric supply.

Wind Power Systems

Lingfeng Wang,Chanan Singh,Andrew Kusiak
Wind Power Systems Book PDF

Author : Lingfeng Wang,Chanan Singh,Andrew Kusiak
Publisher : Springer Science & Business Media
Page : 440 pages
File Size : 48,6 Mb
Release : 2010-09-15
Category : Technology & Engineering
ISBN : 9783642132506

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Wind Power Systems by Lingfeng Wang,Chanan Singh,Andrew Kusiak Pdf

Renewable energy sources such as wind power have attracted much attention because they are environmentally friendly, do not produce carbon dioxide and other emitants, and can enhance a nation’s energy security. For example, recently more significant amounts of wind power are being integrated into conventional power grids. Therefore, it is necessary to address various important and challenging issues related to wind power systems, which are significantly different from the traditional generation systems. This book is a resource for engineers, practitioners, and decision-makers interested in studying or using the power of computational intelligence based algorithms in handling various important problems in wind power systems at the levels of power generation, transmission, and distribution. Researchers have been developing biologically-inspired algorithms in a wide variety of complex large-scale engineering domains. Distinguished from the traditional analytical methods, the new methods usually accomplish the task through their computationally efficient mechanisms. Computational intelligence methods such as evolutionary computation, neural networks, and fuzzy systems have attracted much attention in electric power systems. Meanwhile, modern electric power systems are becoming more and more complex in order to meet the growing electricity market. In particular, the grid complexity is continuously enhanced by the integration of intermittent wind power as well as the current restructuring efforts in electricity industry. Quite often, the traditional analytical methods become less efficient or even unable to handle this increased complexity. As a result, it is natural to apply computational intelligence as a powerful tool to deal with various important and pressing problems in the current wind power systems. This book presents the state-of-the-art development in the field of computational intelligence applied to wind power systems by reviewing the most up-to-date work and representative practical problems collecting contributions from leading experts in electrical engineering, system engineering, and other disciplines.

Power Quality in Modern Power Systems

Sanjeevikumar Padmanaban,C. Sharmeela,Jens Bo Holm-Nielsen,P. Sivaraman
Power Quality in Modern Power Systems Book PDF

Author : Sanjeevikumar Padmanaban,C. Sharmeela,Jens Bo Holm-Nielsen,P. Sivaraman
Publisher : Academic Press
Page : 352 pages
File Size : 48,6 Mb
Release : 2020-11-20
Category : Science
ISBN : 9780128234464

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Power Quality in Modern Power Systems by Sanjeevikumar Padmanaban,C. Sharmeela,Jens Bo Holm-Nielsen,P. Sivaraman Pdf

Power Quality in Modern Power Systems presents an overview of power quality problems in electrical power systems, for identifying pitfalls and applying the fundamental concepts for tackling and maintaining the electrical power quality standards in power systems. It covers the recent trends and emerging topics of power quality in large scale renewable energy integration, electric vehicle charging stations, voltage control in active distribution network and solutions to integrate large scale renewable energy into the electric grid with several case studies and real-time examples for power quality assessments and mitigations measures. This book will be a practical guide for graduate and post graduate students of electrical engineering, engineering professionals, researchers and consultants working in the area of power quality. Explains the power quality characteristics through suitable real time measurements and simulation examples Explanations for harmonics with various real time measurements are included Simulation of various power quality events using PSCAD and MATLAB software PQ disturbance detection and classification through advanced signal processing and machine learning tools Overview about power quality problems associated with renewable energy integration, electric vehicle supply equipment’s, residential systems using several case studies

Transient Phenomena in Electrical Power Systems

N. D. Anisimova,V. V. Ezhkov,V. A. Venikov
Transient Phenomena in Electrical Power Systems Book PDF

Author : N. D. Anisimova,V. V. Ezhkov,V. A. Venikov
Publisher : Elsevier
Page : 428 pages
File Size : 43,9 Mb
Release : 2014-06-20
Category : Technology & Engineering
ISBN : 9781483226712

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Transient Phenomena in Electrical Power Systems by N. D. Anisimova,V. V. Ezhkov,V. A. Venikov Pdf

Transient Phenomena in Electrical Power Systems: Problems and Illustrations deals with the technique of calculating the different transient phenomena in electrical power systems. Concrete examples are given to show the character of the transient processes, and the order of magnitude is derived in some typical cases. Topics covered include equivalent circuits, steady-state quantities, and the initial conditions of a transient process. The characteristics of generators and synchronous condensers are also considered. Comprised of nine chapters, this book begins with an introduction to the units of measurement as well as the equations of the system and its elements, such as frequency regulators, turbine governors, and transformers. The second chapter presents examples of the construction of equivalent circuits and the determination of the steady-state operation of a system, along with the original condition that precedes the transient process. The third and fourth chapters deal with different characteristics of generators, synchronous condensers, and loads of electrical systems. The fifth chapter examines the general criteria of stability used in calculations of the conditions in electrical systems. Problems of static stability and the effect of large oscillations on stability are discussed in the next three chapters. The final chapter is devoted to special problems on the variation of operating conditions, frequency variation, and the flow of power between systems. This monograph is written for design engineers, operation engineers, apprentices, and students.

Small Signal Analysis of Power Systems

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

Author : M. A. Pai,D. P. Sen Gupta,K. R. Padiyar
Publisher : Alpha Science Int'l Ltd.
Page : 308 pages
File Size : 45,6 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.

Signal Processing of Power Quality Disturbances

Math H. J. Bollen,Irene Y. H. Gu
Signal Processing of Power Quality Disturbances Book PDF

Author : Math H. J. Bollen,Irene Y. H. Gu
Publisher : John Wiley & Sons
Page : 883 pages
File Size : 53,6 Mb
Release : 2006-08-04
Category : Technology & Engineering
ISBN : 9780471931300

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Signal Processing of Power Quality Disturbances by Math H. J. Bollen,Irene Y. H. Gu Pdf

Bridging the gap between power quality and signal processing This innovative new text brings together two leading experts, one from signal processing and the other from power quality. Combining their fields of expertise, they set forth and investigate various types of power quality disturbances, how measurements of these disturbances are processed and interpreted, and, finally, the use and interpretation of power quality standards documents. As a practical aid to readers, the authors make a clear distinction between two types of power quality disturbances: * Variations: disturbances that are continuously present * Events: disturbances that occur occasionally A complete analysis and full set of tools are provided for each type of disturbance: * Detailed examination of the origin of the disturbance * Signal processing measurement techniques, including advanced techniques and those techniques set forth in standards documents * Interpretation and analysis of measurement data * Methods for further processing the features extracted from the signal processing into site and system indices The depth of coverage is outstanding: the authors present and analyze material that is not covered in the standards nor found in the scientific literature. This text is intended for two groups of readers: students and researchers in power engineering who need to use signal processing techniques for power system applications, and students and researchers in signal processing who need to perform power system disturbance analyses and diagnostics. It is also highly recommended for any engineer or utility professional involved in power quality monitoring.

Modern Aspects of Power System Frequency Stability and Control

Andrew Dixon
Modern Aspects of Power System Frequency Stability and Control Book PDF

Author : Andrew Dixon
Publisher : Academic Press
Page : 376 pages
File Size : 54,8 Mb
Release : 2019-05-04
Category : Science
ISBN : 9780128163078

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Modern Aspects of Power System Frequency Stability and Control by Andrew Dixon Pdf

Modern Aspects of Power System Frequency Stability and Control describes recently-developed tools, analyses, developments and new approaches in power system frequency, stability and control, filling a gap that, until the last few years, has been unavailable to power system engineers. Deals with specific practical issues relating to power system frequency, control and stability Focuses on low-inertia and smart grid systems Describes the fundamental processes by which the frequency response requirements of power systems in daily operation are calculated, together with a description of the actual means of calculation of these requirements

Integration of Large Scale Wind Energy with Electrical Power Systems in China

Zongxiang Lu,Shuangxi Zhou
Integration of Large Scale Wind Energy with Electrical Power Systems in China Book PDF

Author : Zongxiang Lu,Shuangxi Zhou
Publisher : John Wiley & Sons
Page : 488 pages
File Size : 49,8 Mb
Release : 2018-03-28
Category : Technology & Engineering
ISBN : 9781118910078

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Integration of Large Scale Wind Energy with Electrical Power Systems in China by Zongxiang Lu,Shuangxi Zhou Pdf

An in-depth examination of large scale wind projects and electricity production in China Presents the challenges of electrical power system planning, design, operation and control carried out by large scale wind power, from the Chinese perspective Focuses on the integration issue of large scale wind power to the bulk power system, probing the interaction between wind power and bulk power systems Wind power development is a burgeoning area of study in developing countries, with much interest in offshore wind farms and several big projects under development English translation of the Chinese language original which won the "Fourth China Outstanding Publication Award nomination" in March 2013

Power System Stability and Control

Leonard L. Grigsby
Power System Stability and Control Book PDF

Author : Leonard L. Grigsby
Publisher : CRC Press
Page : 360 pages
File Size : 51,6 Mb
Release : 2007-05-30
Category : Science
ISBN : 9781420009248

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Power System Stability and Control by Leonard L. Grigsby Pdf

Part of the second edition of The Electric Power Engineering Handbook, Power System Stability and Control offers conveniently focused and detailed information covering all aspects concerning power system protection, dynamics, stability, operation, and control. Contributed by worldwide leaders under the guidance of one of the world's most respected