Transmission Line Protection Using Digital Technology


Book Description

This book develops novel digital distance relaying schemes to eliminate the errors produced by the conventional digital distance relays while protecting power transmission lines against different types of faults. These include high resistance ground faults on single infeed transmission lines; high resistance ground faults on double infeed transmission lines; simultaneous open conductor and ground fault on double infeed transmission lines; inter-circuit faults on parallel transmission lines; simultaneous open conductor and ground fault on series compensated parallel transmission lines; inter-circuit faults on series compensated parallel transmission lines; and phase faults on series compensated double infeed transmission lines. This monograph also details suggestions for further work in the area of digital protection of transmission lines. The contents will be useful to academic as well as professional researchers working in transmission line protection.




Digital Protection for Power Systems


Book Description

Digital protection is based on the use of computers in power line relaying. This book gives a detailed understanding of the principles and techniques underlying the application of digital technology and algorithms to protection.







Power Swing Detection and Generator Out-of-Step Protection Under Renewable Power Source Integration


Book Description

This monograph focuses on the modern power system and its reliable operation on a national scale. The contents focus on the analysis and root cause of different power system blackouts, the introduction of a phasor measurement unit incorporating a polygon-shaped graphical algorithm for out-of-step protection of the synchronous generator, predictive out-of-step protection, dual-slope relay setting, novel apparent stability concept, among others. This volume will be beneficial to academia and industry during the testing, development, and modeling of protective relays for generators, transformers, and transmission lines.




Digital Signal Processing in Power System Protection and Control


Book Description

Digital Signal Processing in Power System Protection and Control bridges the gap between the theory of protection and control and the practical applications of protection equipment. Understanding how protection functions is crucial not only for equipment developers and manufacturers, but also for their users who need to install, set and operate the protection devices in an appropriate manner. After introductory chapters related to protection technology and functions, Digital Signal Processing in Power System Protection and Control presents the digital algorithms for signal filtering, followed by measurement algorithms of the most commonly-used protection criteria values and decision-making methods in protective relays. A large part of the book is devoted to the basic theory and applications of artificial intelligence techniques for protection and control. Fuzzy logic based schemes, artificial neural networks, expert systems and genetic algorithms with their advantages and drawbacks are discussed. AI techniques are compared and it is also shown how they can be combined to eliminate the disadvantages and magnify the useful features of particular techniques. The information provided in Digital Signal Processing in Power System Protection and Control can be useful for protection engineers working in utilities at various levels of the electricity network, as well as for students of electrical engineering, especially electrical power engineering. It may also be helpful for other readers who want to get acquainted with and to apply the filtering, measuring and decision-making algorithms for purposes other than protection and control, everywhere fast and on-line signal analysis is needed for proper functioning of the apparatus.




Futuristic Trends in Numerical Relaying for Transmission Line Protections


Book Description

This book presents the state-of-the-art approach for transmission line protection schemes for smart power grid. It provides a comprehensive solution for real-time development of numerical relaying schemes for future power grids which can minimize cascade tripping and widespread blackout problems prevailing all around the world. The book also includes the traditional approach for transmission line protection along with issues and challenges in protection philosophy. It highlights the issues for sheltering power grid from unwanted hazards with very fundamental approach. The book follows a step-by-step approach for resolving critical issues like high impedance faults, power swing detection and auto-reclosing schemes with adaptive protection process. The book also covers the topic of hardware solution for real-time implementation of auto-reclosing scheme for transmission line protection schemes along with comparative analysis with the recently developed analytical approach such as Artificial Neural Network (ANN), Support Vector Machine (SVM) and other machine learning algorithms. It will be useful to researchers and industry professionals and students in the fields of power system protection.




Techno-Societal 2022


Book Description

“This two-volume book originates from Techno-Societal 2022, the 4th International Conference on Advanced Technologies for Societal Applications held in Maharashtra, India. The conference brought together faculty members from various engineering colleges and eminent researchers from reputed organizations to solve Indian regional relevant problems. The focus of the Volume-I is on technologies that help develop and improve society, with a particular emphasis on issues such as advanced and sustainable technologies for water, energy, transportation, housing, and sanitation. Additionally, the book covers advances in pharmacy, nutraceuticals, and traditional medicines, as well as chemical and physical processes. The Volume-II covers deployable environment or health care technologies, mechatronics, micro-nano related technologies for bio and societal applications, and advanced assessment of employees and employment sectors. The conference aims to provide a platform for innovators to share their best practices or products developed to solve specific local problems, which in turn may inspire other researchers to solve problems in their own regions. Expert researchers also propose technologies that may find applications in different regions, providing a multidisciplinary platform for researchers from a broad range of disciplines of science, engineering, and technology to report innovations at different levels.”




Digital Protection Protective Relaying From Electromechanical To Microprocess


Book Description

The Present Edition Of The Book Contains Almost All The Topics Connected With Protection Schemes. The Book, Which Consists Of Ten Main Chapters And Two Appendices, Starts With The Chapter On Introduction, And Includes Chapters On Fundamental And Basic Theory Of Protection Schemes, Definition Of Various Terms, Different Types Of Protective Relaying Schemes, Generalized Mathematical Theory Of Protective Relay, Relay As A Comparator, Single Input, Dual Input And Multi- Input Comparator, Different Types And Arrangement Of Protection Schemes For Various Components And Detailed Studies Of Electromechanical, Electronics, Static And Digital Relaying Schemes. The Digital Protection Of Synchronous Machines, Transformer And Transmission Line Based, Both On Fundamental And Travelling Wave Phenomena, Are Dealt With In Detail. Also Included In The Present Edition, Are The Related Topics Such As Theory And Design Of Dynamic Test Bench, P.C. Based Relay Setting And Coordination, P.C. Based Short Circuit Studies And Ultra High Speed Relaying Schemes.The Present Edition Which Contains Almost All The Topics Of Current Interest In The Area Of Protective Relaying, Will Certainly Be Very Useful To The Teachers, Students And Engineers Working With The Utilities. The Present Edition Is The Result Of Teaching By The Author To The Undergraduate And Postgraduate Level Classes And Supervising Several Doctoral And Master Thesis And Graduate Level Projects In The Area Of Power System Protection At The Indian Institute Of Technology, Kanpur, For More Than Two Decades. The Content Of The Present Edition Has Been Class-Tested For Several Years At The Undergraduate And Postgraduate Level Classes At L.L.T., Kanpur. It Has Also Been Tested In Several Intensive Courses Offered By The Author Under Qip And Other Schemes To The Teachers Of Academic Institutions And Also Engineers Working With Utilities.




Smart Grid Applications, Communications, and Security


Book Description

For many, smart grids are the biggest technological revolution since the Internet. They have the potential to reduce carbon dioxide emissions, increase the reliability of electricity supply, and increase the efficiency of our energy infrastructure. Smart Grid Applications, Communications, and Security explains how diverse technologies play hand-in-hand in building and maintaining smart grids around the globe. The book delves into the communication aspects of smart grids, provides incredible insight into power electronics, sensing, monitoring, and control technologies, and points out the potential for new technologies and markets. Extensively cross-referenced, the book contains comprehensive coverage in four major parts: Part I: Applications provides a detailed introduction to smart grid applications—spanning the transmission, distribution, and consumer side of the electricity grid Part II: Communications discusses wireless, wireline, and optical communication solutions—from the physical layers up to sensing, automation, and control protocols running on the application layers Part III: Security deals with cyber security—sharpening the awareness of security threats, reviewing the ongoing standardization, and outlining the future of authentication and encryption key management Part IV: Case Studies and Field Trials presents self-contained chapters of studies where the smart grid of tomorrow has already been put into practice With contributions from major industry stakeholders such as Siemens, Cisco, ABB, and Motorola, this is the ideal book for both engineering professionals and students.




Power System Relaying


Book Description

Power System Relaying An updated edition of the gold standard in power system relaying texts In the newly revised fifth edition of Power System Relaying, a distinguished team of engineers delivers a thorough update to an essential text used by countless univer??sities and industry courses around the world. The book explores the fundamentals of relaying and power system phenomena, including stability, protection, and reliability. The latest edition provides readers with substantial updates to transformer protection, rotating machinery protection, nonpilot distance protection of transmission and distribution lines, power system phenomena, and bus, reactor, and capacitor protection. It also includes an expanded introduction to the elements of protection systems. Problems and solutions round out the new material and offer an indispensable self-contained study environment. Readers will also find: A thorough introduction to protective relaying, including discussions of effective grounding and power system bus configurations In-depth explorations of relay operating principles and current and voltage transformers Fulsome discussions of nonpilot overcurrent and distance protection of transmission and distribution lines, as well as pilot protection of transmission lines Comprehensive treatments of rotating machinery protection and bus, reactor, and capacitor protection Perfect for undergraduate and graduate students studying power system engineering, Power System Relaying is an ideal resource for practicing engineers involved with power systems and academic researchers studying power system protection.