Digital Signal Processing In Power System Protection And Control
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Digital Signal Processing in Power System Protection and Control
Author: Waldemar Rebizant
language: en
Publisher: Springer Science & Business Media
Release Date: 2011-07-28
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.
Electrical Power System Protection
Author: C. Christopoulos
language: en
Publisher: Springer Science & Business Media
Release Date: 2013-04-18
The death of Professor Arthur Wright in the summer of 1996 deprived me of a friend and a colleague whose judgement and experience shaped this book. I pay tribute to his contributions to protection and electrical engineering education. In the five years since the first edition appeared, many developments have taken place and it is now necessary to update the book. The use of digital communications and advanced signal processing techniques is now widespread and several fully numeric relays are available from manu facturers. Two new Chapters 13 and 14 have been added to introduce readers to these concepts and associated techniques. Artificial intelligence is making its impact in all engineering applications and power system protection is no exception. Expert systems, fuzzy logic, artificial neural networks, adaptive and integrated protection, synchronized measurements using the global positioning system, genetic algorithms, flexible a.c. transmission systems, are some of the techniques considered in connection with protection. Although many of these techniques have not yet found major application in protection, it is nevertheless essential for the educated protection engineer to have a basic understanding of the underlying principles and methodology so that he, or she, can evaluate their suitability for new relaying problems and applications. Chapter 15 was therefore added to guide readers through this developing area. I have also added some new material in other chapters to reflect changes over the past years.
Power Systems Protection, control &automation
This book provides practical applications of numerical relays for protection and control of various primary equipment namely distribution and transmission networks , HV and EHV transformers and busbars, reactive and active power plants. Unlike other books attempts have been made to address the subject from practical point of view rather than theoretical one which can otherwise be found in most of other text books. The setting, design and testing philosophy of numerical relays as discussed in this book have been successfully applied in the fields on various projects and consequently can be used as a practical guideline for implementation on future projects. The book covers the followings subjects: · Fundamental concepts in the field of power system protection and control; · Required system modelling and fault level analysis for the design and setting of protection and control devices; · Setting and design philosophy of numerical relays of different primary equipment; · Practical application of anti-Islanding schemes for two different systems namely distribution generation (DG) and transmission generation (TG); · Challenges and solutions which are encountered during secondary equipment refurbishment/replacement in brown field substations with inclusion of two practical case studies; · Required tests for factory acceptance tests (FAT), site acceptance tests (SAT), and commissioning tests of numerical relays in conventional and digital substations; · Causes, analysis and proposed mitigation techniques of more than 100 worldwide disturbances which have occurred in different type of primary equipment which have resulted to major system black out or plant explosion or even fatality and; · New and future trend of application of numerical relays including application of super IED for protection and control of multi-primary equipment, implementation of digital substation ,remote integrations ,self and remote testing of IED , distribution networks fault location techniques and fault locators using travelling waves, synchro phasors, time domain line protection using travelling waves, adaptive slope characteristics of differential protection, protection and control schemes of micro grids, mitigation technique for prevention of loss of reactive power plants and transformers due to solar storms.