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Fault Location And Analysis In Transmission And Distribution Networks
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Book Synopsis Fault Location on Transmission and Distribution Lines by : Swagata Das
Download or read book Fault Location on Transmission and Distribution Lines written by Swagata Das and published by John Wiley & Sons. This book was released on 2021-11-22 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with up-to-date coverage of fault location algorithms in transmission and distribution networks. The algorithms will help readers track down the exact location of a fault in the shortest possible time. Furthermore, voltage and current waveforms recorded by digital relays, digital fault recorders, and other intelligent electronic devices contain a wealth of information. Knowledge gained from analysing the fault data can help system operators understand what happened, why it happened and how it can be prevented from happening again. The book will help readers convert such raw data into useful information and improve power system performance and reliability.
Book Synopsis Fault Location and Analysis in Transmission and Distribution Networks by : Swagata Das
Download or read book Fault Location and Analysis in Transmission and Distribution Networks written by Swagata Das and published by . This book was released on 2015 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Short-circuit faults are inevitable on transmission and distribution networks. In an effort to provide system operators with an accurate location estimate and reduce service restoration times, several impedance-based fault location algorithms have been developed for transmission and distribution networks. Each algorithm has specific input data requirements and make certain assumptions that may or may not hold true in a particular scenario. Identifying the best fault location approach, therefore, requires a thorough understanding of the working principle behind each algorithm. Moreover, impedance-based fault location algorithms require voltage and current phasors, captured by intelligent electronic devices (IEDs), to estimate the fault location. Unfortunately, voltage phasors are not always available due to operational constraints or equipment failure. Furthermore, impedance-based fault location algorithms assume a radial distribution feeder. With increased interconnection of distributed generators (DGs) to the feeder, this assumption is violated. DGs also contribute to the fault and severely compromise the accuracy of location estimates. In addition, the variability of certain DGs such as the fixed-speed wind turbine can alter fault current levels and result in relay misoperations. Finally, data recorded by IEDs during a fault contain a wealth of information and are prime for use in other applications that improve power system reliability. Based on the above background, the first objective of this dissertation is to present a comprehensive theory of impedance-based fault location algorithms. The contributions lie in clearly specifying the input data requirement of each algorithm and identifying their strengths and weaknesses. The following criteria are recommended for selecting the most suitable fault location algorithm: (a) data availability and (b) application scenario. The second objective is to develop fault location algorithms that use only the current to estimate the fault location. The simple but powerful algorithms allow system operators to locate faults even in the absence of voltage data. The third objective is to investigate the shortcomings of existing fault location algorithms when DGs are interconnected to the distribution feeder and develop an improved solution. A novel algorithm is proposed that require only the voltage and current phasors at the substation, is straightforward to implement, and is capable of locating all fault types. The fourth objective is to examine the effects of wind speed variation on the maximum and minimum fault current levels of a wind turbine and investigate the impact on relay settings. Contributions include developing an accurate time-domain model of a fixed-speed wind turbine with tower shadow and wind shear and verifying that the variation in wind speed does not violate relay settings calculated using the IEC 60909-0 Standard. The final objective is to exploit intelligent electronic device data for improving power system reliability. Contributions include validating the zero-sequence impedance of multi-terminal transmission lines with unsynchronized measurements, reconstructing the sequence of events, assessing relay performance, estimating the fault resistance, and verifying the accuracy of the system model. Overall, the research presented in this dissertation aims to describe the theory of impedance-based fault location, identify the sources of fault location error, propose solutions to overcome those error sources, and share lessons learned from analyzing intelligent electronic device data. The research is expected to reduce service downtime, prevent protection system misoperations, and improve power quality.
Book Synopsis Fault Location on Power Networks by : Murari Mohan Saha
Download or read book Fault Location on Power Networks written by Murari Mohan Saha and published by Springer Science & Business Media. This book was released on 2009-11-25 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fault Location on Power Lines enables readers to pinpoint the location of a fault on power lines following a disturbance. The nine chapters are organised according to the design of different locators. The authors do not simply refer the reader to manufacturers’ documentation, but instead have compiled detailed information to allow for in-depth comparison. Fault Location on Power Lines describes basic algorithms used in fault locators, focusing on fault location on overhead transmission lines, but also covering fault location in distribution networks. An application of artificial intelligence in this field is also presented, to help the reader to understand all aspects of fault location on overhead lines, including both the design and application standpoints. Professional engineers, researchers, and postgraduate and undergraduate students will find Fault Location on Power Lines a valuable resource, which enables them to reproduce complete algorithms of digital fault locators in their basic forms.
Book Synopsis Fault Analysis and Model-based Approach for Fault Location in Modern Grids by : Sundaravaradan Navalpakkam Ananthan
Download or read book Fault Analysis and Model-based Approach for Fault Location in Modern Grids written by Sundaravaradan Navalpakkam Ananthan and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Short-circuit faults are inevitable on transmission and distribution networks. Dispatching the maintenance crew directly to the location of the fault saves a significant amount of resources in the restoration process, which has motivated the development of several fault location approaches. Impedance-based fault location (IBFL) approaches are the most commonly used fault location methods in digital relays. However, each IBFL approach is designed specific to a line or network configuration and is not universal. Furthermore, they suffer from several sources of errors and do not fully utilize valuable information about the power system surrounding the faulted line that is available. This dissertation presents a novel fault location approach that utilizes a system model to overcome these limitations. The concept of the proposed model-based fault location (MBFL) approach is to estimate the fault location by identifying the closest match among various fault scenarios simulated using the system model and the actual fault scenario. A key benefit of the proposed approach is identifying the location of a fault on a neighboring line using limited measurements, as few as only the through fault current flowing in a neighboring line. Application methods for implementing MBFL efficiently and effectively have been developed, with each technique having its unique benefits. The advantages of the proposed MFBL approach and the practical applicability of each implementation technique have been demonstrated using simulations on complex network configurations as well as field data of fault events. This work also contributes towards tools to supplement fault analysis applications in ac and dc systems. An algorithm to select an appropriate time instant in a fault record to extract phasors for post-fault event report analysis applications was developed. In low-voltage dc distribution systems, fault signatures of series-arc faults were identified to aid arc detection. Overall, the research work presented in this dissertation makes substantive contributions to fault location and fault analysis in transmission and distribution systems
Book Synopsis Smart Grids and Their Communication Systems by : Ersan Kabalci
Download or read book Smart Grids and Their Communication Systems written by Ersan Kabalci and published by Springer. This book was released on 2018-09-01 with total page 661 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book presents a broad overview of emerging smart grid technologies and communication systems, offering a helpful guide for future research in the field of electrical engineering and communication engineering. It explores recent advances in several computing technologies and their performance evaluation, and addresses a wide range of topics, such as the essentials of smart grids for fifth generation (5G) communication systems. It also elaborates the role of emerging communication systems such as 5G, internet of things (IoT), IEEE 802.15.4 and cognitive radio networks in smart grids. The book includes detailed surveys and case studies on current trends in smart grid systems and communications for smart metering and monitoring, smart grid energy storage systems, modulations and waveforms for 5G networks. As such, it will be of interest to practitioners and researchers in the field of smart grid and communication infrastructures alike.
Book Synopsis Power Systems Modelling and Fault Analysis by : Nasser Tleis
Download or read book Power Systems Modelling and Fault Analysis written by Nasser Tleis and published by Elsevier. This book was released on 2007-11-30 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive practical treatment of the modelling of electrical power systems, and the theory and practice of fault analysis of power systems covering detailed and advanced theories as well as modern industry practices.The continuity and quality of electricity delivered safely and economically by today's and future's electrical power networks are important for both developed and developing economies. The correct modelling of power system equipment and correct fault analysis of electrical networks are pre-requisite to ensuring safety and they play a critical role in the identification of economic network investments. Environmental and economic factors require engineers to maximise the use of existing assets which in turn require accurate modelling and analysis techniques. The technology described in this book will always be required for the safe and economic design and operation of electrical power systems. The book describes relevant advances in industry such as in the areas of international standards developments, emerging new generation technologies such as wind turbine generators, fault current limiters, multi-phase fault analysis, measurement of equipment parameters, probabilistic short-circuit analysis and electrical interference.*A fully up-to-date guide to the analysis and practical troubleshooting of short-circuit faults in electricity utilities and industrial power systems*Covers generators, transformers, substations, overhead power lines and industrial systems with a focus on best-practice techniques, safety issues, power system planning and economics*North American and British / European standards covered
Book Synopsis Computational Methods for Fault Location on Electric Power Transmission Lines by : Staffan E. Westlin
Download or read book Computational Methods for Fault Location on Electric Power Transmission Lines written by Staffan E. Westlin and published by . This book was released on 1976 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Fault Detection, Protection and Location on Transmission Line. A Review by : Seada Hussen Adem
Download or read book Fault Detection, Protection and Location on Transmission Line. A Review written by Seada Hussen Adem and published by GRIN Verlag. This book was released on 2020-10-07 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research Paper (postgraduate) from the year 2020 in the subject Electrotechnology, grade: 1, Addis Ababa University (Addis Ababa Science and Technology University Addis Ababa, Ethiopia + Istanbul Sabahattin Zaim University Istanbul, Turkey), language: English, abstract: Electrical power transmission systems suffer from unexpected failures due to various random causes. Un-predicted faults that occur in power systems are required to prevent from propagation to other area in the protective system. The functions of the protective systems are to detect, then classify and finally determine the location of the faulty. This paper presents some techniques that helps to find, determine and diagnosing faults in transmission line. Artificial neural networks, impedance measurement based methods, fuzzy expert method, wavelet transform and so on have been used to achieve fault identification and classification.This paper will review the type of fault that possibly occurs in an electric power system, the type of fault detection and location technique that are available together with the protection device that can be utilized in the power system to protect the equipment from electric fault.
Book Synopsis Power System Fault Diagnosis by : Md Shafiullah
Download or read book Power System Fault Diagnosis written by Md Shafiullah and published by Elsevier. This book was released on 2022-01-14 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: Power System Fault Diagnosis: A Wide Area Measurement Based Intelligent Approach is a comprehensive overview of the growing interests in efficient diagnosis of power system faults to reduce outage duration and revenue losses by expediting the restoration process.This book illustrates intelligent fault diagnosis schemes for power system networks, at both transmission and distribution levels, using data acquired from phasor measurement units. It presents the power grid modeling, fault modeling, feature extraction processes, and various fault diagnosis techniques, including artificial intelligence techniques, in steps. The book also incorporates uncertainty associated with line parameters, fault information (resistance and inception angle), load demand, renewable energy generation, and measurement noises. - Provides step-by-step modeling of power system networks (distribution and transmission) and faults in MATLAB/SIMULINK and real-time digital simulator (RTDS) platforms - Presents feature extraction processes using advanced signal processing techniques (discrete wavelet and Stockwell transforms) and an easy-to-understand optimal feature selection method - Illustrates comprehensive results in the graphical and tabular formats that can be easily reproduced by beginners - Highlights various utility practices for fault location in transmission networks, distribution systems, and underground cables.
Book Synopsis Artificial Intelligence Applications in Electrical Transmission and Distribution Systems Protection by : Almoataz Y. Abdelaziz
Download or read book Artificial Intelligence Applications in Electrical Transmission and Distribution Systems Protection written by Almoataz Y. Abdelaziz and published by CRC Press. This book was released on 2021-10-21 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Artificial intelligence (AI) can successfully help in solving real-world problems in power transmission and distribution systems because AI-based schemes are fast, adaptive, and robust and are applicable without any knowledge of the system parameters. This book considers the application of AI methods for the protection of different types and topologies of transmission and distribution lines. It explains the latest pattern-recognition-based methods as applicable to detection, classification, and location of a fault in the transmission and distribution lines, and to manage smart power systems including all the pertinent aspects. FEATURES Provides essential insight on uses of different AI techniques for pattern recognition, classification, prediction, and estimation, exclusive to power system protection issues Presents an introduction to enhanced electricity system analysis using decision-making tools Covers AI applications in different protective relaying functions Discusses issues and challenges in the protection of transmission and distribution systems Includes a dedicated chapter on case studies and applications This book is aimed at graduate students, researchers, and professionals in electrical power system protection, stability, and smart grids.
Book Synopsis Electromagnetic Time Reversal by : Farhad Rachidi
Download or read book Electromagnetic Time Reversal written by Farhad Rachidi and published by John Wiley & Sons. This book was released on 2017-01-04 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to familiarize the reader with the concept of electromagnetic time reversal, and introduce up-to-date applications of the concept found in the areas of electromagnetic compatibility and power systems. It is original in its approach to describing propagation and transient issues in power networks and power line communication, and is the result of the three main editors' pioneering research in the area.
Book Synopsis Fault Location on Transmission and Distribution Lines by : Roshan Lakde
Download or read book Fault Location on Transmission and Distribution Lines written by Roshan Lakde and published by . This book was released on 2013 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fault location is one of the most critical issues of utilities and electrical companies in today's competitive market. Analysis of fault location not only ensures the continuous power supply but also help to study properties and weakness of particular power network. In the following paper, the author has discussed various traditional and new approaches to fault location. Also, the author has done Matlab simulation to prove the accuracy of the algorithm. The author has used fundamental frequency component of fault voltage and current for the analysis.
Book Synopsis Fault Location and Service Restoration for Electrical Distribution Systems by : Jian Guo Liu
Download or read book Fault Location and Service Restoration for Electrical Distribution Systems written by Jian Guo Liu and published by John Wiley & Sons. This book was released on 2016-03-28 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: In-depth and systemic examination of distribution automation with specific focus on fault location and service restoration Focuses on the detailed and systemic examination of fault location and service restoration in distribution grid Arms the readers with a complete picture of what fault location and service restoration is from both theoretical and practical perspectives Presents the authors' research on fault location and restoration for distribution systems since 1995 Introduces the first-hand application experience obtained from over 30 DAS (Distribution Automation System) projects in China Examines the protection approaches of electrical distribution networks automation and on relevant mechanisms associated to electrical supply restoration after (local) blackouts
Book Synopsis Fault Location in Transmission Lines by Wavelet Analysis by : Kundan Kumar
Download or read book Fault Location in Transmission Lines by Wavelet Analysis written by Kundan Kumar and published by LAP Lambert Academic Publishing. This book was released on 2015-05-07 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transmission line protective relaying is an important aspect of reliable power system operation. Transmission line relaying has evolved into a multifunctional scheme comprising of tasks like detection, classification and location of faults occurring on transmission lines. This work presents a wavelet analysis based approach for estimation of fault location in transmission lines. The proposed approach requires the consideration of wavelet multi-resolution analysis (MRA) level-1 details of current samples at one end of transmission line for the estimation of fault location. Simulation results based on EMTP and MATLAB have been presented to illustrate the effectiveness of the proposed approach. To validate the proposed fault location approach, studies have been carried out on simulated power system model in which the transmission line is fed from both ends. The model is subjected to different types of faults while operating at different operating conditions and performances of the proposed algorithms are evaluated. The results of the simulation studies, which are presented in this book, confirm the feasibility of the proposed algorithms.
Book Synopsis The Location and Analysis of Arcing Faults on Overhead Transmission Lines Using Synchronised Measurement Technology by : Gary Preston
Download or read book The Location and Analysis of Arcing Faults on Overhead Transmission Lines Using Synchronised Measurement Technology written by Gary Preston and published by . This book was released on 2012 with total page 234 pages. Available in PDF, EPUB and Kindle. Book excerpt: Overhead transmission lines are an essential component of power systems, being the most economical means of transmitting electricity from remote sources of generation to the customer. It is, therefore, vital that they be protected and maintained in service to ensure the security of the supply to the end-user, and to protect the capital investment of the power companies. Arcing faults are a common phenomenon on power systems and being able to understand the effects of fault arcs is important for power system protection. Numerical algorithms can be developed that locate the position of and analyse faults on power systems. The aim of this thesis is to develop accurate models of arcing faults and to develop numerical algorithms that can operate successfully on different power system topologies under various fault conditions. Comprehensive literature reviews have been completed the areas of electrical arcs and fault location algorithms. Existing arc models are investigated and new alternative methods of simulating them are proposed. A new method of modelling the elongation of secondary arcs is devised in this thesis and verified using real arc data. A new 'AirArc' model for use in fault simulations is proposed and its accuracy is verified by comparison with the behaviour of a real arc. Three new numerical algorithms, developed for this thesis, for fault location and analysis, based upon the synchronised sampling of voltage and current data at both ends of the line, are derived and their accuracy tested for a number of different network topologies and fault scenarios. Finally, there is a chapter summarising the work completed for this thesis, drawing conclusions from that work and suggesting further work that could be undertaken in the future.
Book Synopsis Fault Location on Distribution Networks Using Analytical Voltage Sags Analysis and Database Approach by : Hazlie Mokhlis
Download or read book Fault Location on Distribution Networks Using Analytical Voltage Sags Analysis and Database Approach written by Hazlie Mokhlis and published by . This book was released on 2009 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis America's Energy Future by : National Research Council
Download or read book America's Energy Future written by National Research Council and published by National Academies Press. This book was released on 2010-01-15 with total page 736 pages. Available in PDF, EPUB and Kindle. Book excerpt: For multi-user PDF licensing, please contact customer service. Energy touches our lives in countless ways and its costs are felt when we fill up at the gas pump, pay our home heating bills, and keep businesses both large and small running. There are long-term costs as well: to the environment, as natural resources are depleted and pollution contributes to global climate change, and to national security and independence, as many of the world's current energy sources are increasingly concentrated in geopolitically unstable regions. The country's challenge is to develop an energy portfolio that addresses these concerns while still providing sufficient, affordable energy reserves for the nation. The United States has enormous resources to put behind solutions to this energy challenge; the dilemma is to identify which solutions are the right ones. Before deciding which energy technologies to develop, and on what timeline, we need to understand them better. America's Energy Future analyzes the potential of a wide range of technologies for generation, distribution, and conservation of energy. This book considers technologies to increase energy efficiency, coal-fired power generation, nuclear power, renewable energy, oil and natural gas, and alternative transportation fuels. It offers a detailed assessment of the associated impacts and projected costs of implementing each technology and categorizes them into three time frames for implementation.
