Disturbance Analysis For Power Systems
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Disturbance Analysis For Power Systems
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Author : Mohamed A. Ibrahim
language : en
Publisher: John Wiley & Sons
Release Date : 2011-10-25
Disturbance Analysis For Power Systems written by Mohamed A. Ibrahim and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-10-25 with Technology & Engineering categories.
More than ninety case studies shed new light on power system phenomena and power system disturbances Based on the author's four decades of experience, this book enables readers to implement systems in order to monitor and perform comprehensive analyses of power system disturbances. Most importantly, readers will discover the latest strategies and techniques needed to detect and resolve problems that could lead to blackouts to ensure the smooth operation and reliability of any power system. Logically organized, Disturbance Analysis for Power Systems begins with an introduction to the power system disturbance analysis function and its implementation. The book then guides readers through the causes and modes of clearing of phase and ground faults occurring within power systems as well as power system phenomena and their impact on relay system performance. The next series of chapters presents more than ninety actual case studies that demonstrate how protection systems have performed in detecting and isolating power system disturbances in: Generators Transformers Overhead transmission lines Cable transmission line feeders Circuit breaker failures Throughout these case studies, actual digital fault recording (DFR) records, oscillograms, and numerical relay fault records are presented and analyzed to demonstrate why power system disturbances happen and how the sequence of events are deduced. The final chapter of the book is dedicated to practice problems, encouraging readers to apply what they've learned to perform their own system disturbance analyses. This book makes it possible for engineers, technicians, and power system operators to perform expert power system disturbance analyses using the latest tested and proven methods. Moreover, the book's many cases studies and practice problems make it ideal for students studying power systems.
Automated Analysis Of Power Systems Disturbance Records Smart Grid Big Data Perspective
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Author :
language : en
Publisher:
Release Date :
Automated Analysis Of Power Systems Disturbance Records Smart Grid Big Data Perspective written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.
Analysis of faults and disturbances play crucial roles in secure and reliable electrical power supply. Digital fault recorders (DFR) enable digital recording of the power systems transient events with high quality and huge quantity. However, transformation of data to information, expectedly in an automated way, is a big challenge for the power utilities worldwide. This is a key focus for realizing the 'Smart Grid'. In this paper, the architecture and specifications for the primary and the secondary information for the automated systems are described. This provides qualitative and quantitative guidelines about the information to derive out of the disturbance data. A quantified estimate of big data for the substations, has been estimated in the paper. Possible ways of reducing the big data by utilizing intelligent segmentation techniques are described, substantiated by real example. Utilization of centralized protection and remote disturbance analysis for reducing big disturbance data are also discussed.
Power Systems Analysis
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Author : P.S.R. Murty
language : en
Publisher: Butterworth-Heinemann
Release Date : 2017-06-09
Power Systems Analysis written by P.S.R. Murty and has been published by Butterworth-Heinemann this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-06-09 with Technology & Engineering categories.
Power Systems Analysis, Second Edition, describes the operation of the interconnected power system under steady state conditions and under dynamic operating conditions during disturbances. Written at a foundational level, including numerous worked examples of concepts discussed in the text, it provides an understanding of how to keep power flowing through an interconnected grid. The second edition adds more information on power system stability, excitation system, and small disturbance analysis, as well as discussions related to grid integration of renewable power sources. The book is designed to be used as reference, review, or self-study for practitioners and consultants, or for students from related engineering disciplines that need to learn more about power systems. Includes comprehensive coverage of the analysis of power systems, useful as a one-stop resource Features a large number of worked examples and objective questions (with answers) to help apply the material discussed in the book Offers foundational content that provides background and review for the understanding and analysis of more specialized areas of electric power engineering
Small Signal Analysis Of Power Systems
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Author : M. A. Pai
language : en
Publisher: Alpha Science International, Limited
Release Date : 2004
Small Signal Analysis Of Power Systems written by M. A. Pai and has been published by Alpha Science International, Limited this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with Business & Economics categories.
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.
Abrupt Change Detection In Automatic Disturbance Recognition In Electrical Power Systems
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Author : Abhisek Ukil
language : en
Publisher:
Release Date : 2005
Abrupt Change Detection In Automatic Disturbance Recognition In Electrical Power Systems written by Abhisek Ukil and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Dissertations, Academic categories.
Discusses the analysis of faults and disturbances has always been a fundamental foundation for a secure and reliable electrical power supply. The introduction of digital recording technology opened up a new dimension in the quantity and quality of fault disturbance data acquisition, resulting in the availability of a huge amount of new information to power systems engineers. The aim of this thesis is to introduce abrupt change detection technology as an effective segmentation tool for use in the power systems disturbance analysis.
Disturbance Analysis For Power Systems
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Author : Mohamed A. Ibrahim
language : en
Publisher: John Wiley & Sons
Release Date : 2011-09-28
Disturbance Analysis For Power Systems written by Mohamed A. Ibrahim and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-09-28 with Technology & Engineering categories.
More than ninety case studies shed new light on power system phenomena and power system disturbances Based on the author's four decades of experience, this book enables readers to implement systems in order to monitor and perform comprehensive analyses of power system disturbances. Most importantly, readers will discover the latest strategies and techniques needed to detect and resolve problems that could lead to blackouts to ensure the smooth operation and reliability of any power system. Logically organized, Disturbance Analysis for Power Systems begins with an introduction to the power system disturbance analysis function and its implementation. The book then guides readers through the causes and modes of clearing of phase and ground faults occurring within power systems as well as power system phenomena and their impact on relay system performance. The next series of chapters presents more than ninety actual case studies that demonstrate how protection systems have performed in detecting and isolating power system disturbances in: Generators Transformers Overhead transmission lines Cable transmission line feeders Circuit breaker failures Throughout these case studies, actual digital fault recording (DFR) records, oscillograms, and numerical relay fault records are presented and analyzed to demonstrate why power system disturbances happen and how the sequence of events are deduced. The final chapter of the book is dedicated to practice problems, encouraging readers to apply what they've learned to perform their own system disturbance analyses. This book makes it possible for engineers, technicians, and power system operators to perform expert power system disturbance analyses using the latest tested and proven methods. Moreover, the book's many cases studies and practice problems make it ideal for students studying power systems.
Disturbance Analysis Using Power System Measured Data
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Author : Alexander Bykhovsky
language : en
Publisher:
Release Date : 2001
Disturbance Analysis Using Power System Measured Data written by Alexander Bykhovsky and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.
Geomagnetic Disturbances Impacts On Power Systems
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Author : Olga Sokolova
language : en
Publisher: CRC Press
Release Date : 2021-03-04
Geomagnetic Disturbances Impacts On Power Systems written by Olga Sokolova and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-04 with Technology & Engineering categories.
Geomagnetic Disturbances Impacts on Power Systems: Risk Analysis & Mitigation Strategies provides a full risk assessment tool for assessing power systems confronted geomagnetic disturbances (GMDs) and specifies mitigation opportunities for various stakeholders. “This book deals comprehensively with the threat of solar storms on the world’s power systems. It provides a context to GMDs with respect to other natural hazards, and describes methods to evaluate a particular grid’s risk factors in a straightforward fashion. This is extremely useful to power grid operators, as they are not experts in the field of space weather, but they must be able to deal with its impacts. This is the critical message of this extremely valuable book.” – William A. Radasky, Ph.D., P.E., IEEE Life Fellow, Metatech Corporation, California USAAimed at risk engineers, policy-makers, technical experts and non-specialists such as power system operators, this book seeks to provide an insight into the GMD as a natural hazard and to perform the risk assessment of its potential impacts on the power systems as critical infrastructures. The reader gets familiar with how the Sun can endanger ground-based technological systems and the physics of solar activity manifestation on the Earth as Geomagnetically Induced Currents (GICs). The reaction of power systems to GMDs and mitigation strategies aiming at reducing and controlling the risks are then addressed. The GMD mitigation strategies, the power systems critical factors analysis, the high-risk zones identification and an estimation of economic loss, which is a valuable input for the (re)insurance sector, are also brought to the attention of the reader. Thereby, this book provides a full risk assessment tool for assessing power systems confronted with space weather risks. Key features: • Brings together interdisciplinary perspectives on the topic in one, cohesive book • Practical guideline on mitigation actions for diverse users and even non-specialists • Dealing comprehensively with the threat of geomagnetic disturbance on the worlds power systems • Introducing unique methods to evaluate a particular system risk factors in a straightforward fashion Authors Olga Sokolova, Ph.D., is a risk analyst and electrical engineer with expertise in the domain of critical infrastructure risk assessment to natural catastrophes. Nikolay Korovkin, Ph.D., is a full professor and head of Theoretic Electrical Engineering Department at Peter the Great Saint-Petersburg Polytechnic University (SPbPU). Masashi Hayakawa, Ph.D., is an emeritus professor of the University of Electro-Communications, and also CEO of Hayakawa Institute of Seismo Electromagnetics, Co.Ltd.
Power Systems Modelling And Fault Analysis
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Author : Nasser Tleis
language : en
Publisher: Academic Press
Release Date : 2019-06-12
Power Systems Modelling And Fault Analysis written by Nasser Tleis and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-12 with Science categories.
Power Systems Modelling and Fault Analysis: Theory and Practice, Second Edition, focuses on the important core areas and technical skills required for practicing electrical power engineers. Providing a comprehensive and practical treatment of the modeling of electrical power systems, the book offers students and professionals the theory and practice of fault analysis of power systems, covering detailed and advanced theories and modern industry practices. The book describes relevant advances in the industry, such as international standards developments and new generation technologies, such as wind turbine generators, fault current limiters, multi-phase fault analysis, the measurement of equipment parameters, probabilistic short-circuit analysis, and more. Includes a fully up-to-date guide to the analysis and practical troubleshooting of short-circuit faults in electricity utilities and industrial power systems Presents sections on generators, transformers, substations, overhead powerlines and industrial systems Covers best-practice techniques, safety issues, power system planning and economics
Statistical Analysis Of Disturbances In Power Transmission Systems
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Author : Liu Liu (Computer engineer)
language : en
Publisher:
Release Date : 2014
Statistical Analysis Of Disturbances In Power Transmission Systems written by Liu Liu (Computer engineer) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Disturbance analysis is essential to the study of the power transmission systems. Traditionally, disturbances are described as megawatt (MW) events, but the access to data is inefficient due to the slow installation and authorization process of the monitoring device. In this paper, we propose a novel approach to disturbance analysis conducted at the distribution level by exploiting the frequency recordings from Frequency Disturbance Recorders (FDRs) of the Frequency Monitoring Network (FNET/GridEye), based on the relationship between frequency change and the power loss of disturbances - linearly associated by the Frequency Response. We first analyze the real disturbance records of North America (1992 to 2009) and confirm the power law distribution; we discover that small disturbances are log-normal distributed. Then based on the real records from 2011 to 2013 (EI), the disturbances in megawatt and the corresponding frequency change records are studied in parallel. We prove that the frequency change of disturbances and its megawatt records share similar power law distribution when the disturbances are large; the frequency change can be delineated by a log-normal distribution with its numerically approximated coefficient when the disturbances are small. Meanwhile, activities like FIDVR in the power systems reflected as voltage signature patterns recorded at the transmission level are worth studying since each pattern corresponds to a certain type of behavior. Pattern recognition is used in this problem. Initially the records are preprocessed through eliminating ineligible records and rescaling. Feature extraction is applied to obtain a better representation of signature dataset by statistics of amplitude, wavelet transform and Fourier transform. With the extracted features, k-means, an unsupervised clustering algorithm is exploited to generate root patterns; furthermore we use heuristic selection to remove the mis-classified patterns. The extracted root patterns then serve as training dataset to train a support vector machine (SVM). After the parameters of kernel function in SVM is optimized, a subset of voltage signature records is generated as testing dataset, based on which the performance of SVM is evaluated. With all patterns we achieve an accuracy of 80.12% of multi-label classification; and if only considering dominant patterns, the accuracy reaches 86.20%.