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| Author | : Amir Mehdi Mousavi |
| Publisher | : National Library of Canada = Bibliothèque nationale du Canada |
| Total Pages | : 366 |
| Release | : 1999 |
| Genre | : |
| ISBN | : 9780612456921 |
| Author | : |
| Publisher | : |
| Total Pages | : |
| Release | : 1999 |
| Genre | : |
| ISBN | : |
| Author | : Amir Mehdi Mousavi |
| Publisher | : |
| Total Pages | : 0 |
| Release | : 1999 |
| Genre | : |
| ISBN | : |
This thesis presents efficient methods for constructing an equivalent of an immittance matrix of a passive electric network based on either infinite-dimensional theory or fitting of measured (calculated) frequency responses. The immittance matrix can be used: (1) To represent a frequency-dependent equivalent of a large electric network, e.g. an interconnected power system, with respect to prespecified terminal(s), in a wide frequency range for (a) analyses of electromagnetic transients, and (b) analyses and synthesis of controllers, or (2) To represent a frequency dependent equivalent of electric apparatus, e.g. a power transformer, in a wide frequency range, to investigate its terminal behaviour with respect to an external phenomenon (black-box representation). Requirements for the equivalent immittance matrix to provide stable results are that (1) all its poles must lie in the left-half plane and, (2) it must represent a passive network. Immittance matrix of a passive network represents a positive real system. Necessary and sufficient conditions for an immittance matrix to represent a passive network, for both rational transfer matrices and state-space matrices, are presented. Based on developed transforms of these conditions, direct methods, for testing positive realness are deduced. The methods and the corresponding algorithms require only evaluation of a set of simple algebraic conditions. These provide alternative procedures to the application of positive real lemma. Based on these algorithms, positive realness of an equivalent is guaranteed. Based on the following two approaches, a finite-dimensional, linear, and passive model of a network, represented by an immittance matrix, is deduced. (1) The first approach is based on solution of a special class of linear hyperbolic partial differential equations using infinite-dimensional theory. Passivity and stability conditions are ensured. (2) The second approach is based on approximation (fitting) of measured (calculated) frequency responses using either a rational immittance matrix or a state-space representation. Stability and passivity conditions for the model are imposed during optimization fitting process. Applications of the developed approaches and corresponding algorithms are demonstrated based on obtaining frequency-dependent equivalents of (1) a large 500kV transmission system, and (2) a three-phase distribution class transformer.
| Author | : Stefano Grivet-Talocia |
| Publisher | : John Wiley & Sons |
| Total Pages | : 912 |
| Release | : 2015-10-30 |
| Genre | : Technology & Engineering |
| ISBN | : 1119140951 |
Offers an overview of state of the art passive macromodeling techniques with an emphasis on black-box approaches This book offers coverage of developments in linear macromodeling, with a focus on effective, proven methods. After starting with a definition of the fundamental properties that must characterize models of physical systems, the authors discuss several prominent passive macromodeling algorithms for lumped and distributed systems and compare them under accuracy, efficiency, and robustness standpoints. The book includes chapters with standard background material (such as linear time-invariant circuits and systems, basic discretization of field equations, state-space systems), as well as appendices collecting basic facts from linear algebra, optimization templates, and signals and transforms. The text also covers more technical and advanced topics, intended for the specialist, which may be skipped at first reading. Provides coverage of black-box passive macromodeling, an approach developed by the authors Elaborates on main concepts and results in a mathematically precise way using easy-to-understand language Illustrates macromodeling concepts through dedicated examples Includes a comprehensive set of end-of-chapter problems and exercises Passive Macromodeling: Theory and Applications serves as a reference for senior or graduate level courses in electrical engineering programs, and to engineers in the fields of numerical modeling, simulation, design, and optimization of electrical/electronic systems. Stefano Grivet-Talocia, PhD, is an Associate Professor of Circuit Theory at the Politecnico di Torino in Turin, Italy, and President of IdemWorks. Dr. Grivet-Talocia is author of over 150 technical papers published in international journals and conference proceedings. He invented several algorithms in the area of passive macromodeling, making them available through IdemWorks. Bjørn Gustavsen, PhD, is a Chief Research Scientist in Energy Systems at SINTEF Energy Research in Trondheim, Norway. More than ten years ago, Dr. Gustavsen developed the original version of the vector fitting method with Prof. Semlyen at the University of Toronto. The vector fitting method is one of the most widespread approaches for model extraction. Dr. Gustavsen is also an IEEE fellow.
| Author | : K. S. Suresh Kumar |
| Publisher | : Pearson Education India |
| Total Pages | : 844 |
| Release | : 2009 |
| Genre | : Technology & Engineering |
| ISBN | : 9788131713907 |
Electric Circuits and Networks is designed to serve as a textbook for a two-semester undergraduate course on basic electric circuits and networks. The book builds on the subject from its basic principles. Spread over seventeen chapters, the book can be taught with varying degree of emphasis on its six subsections based on the course requirement. Written in a student-friendly manner, its narrative style places adequate stress on the principles that govern the behaviour of electric circuits and networks.
| Author | : Alessandro Morelli |
| Publisher | : SIAM |
| Total Pages | : 160 |
| Release | : 2019-05-21 |
| Genre | : Technology & Engineering |
| ISBN | : 1611975816 |
A resurgence of interest in network synthesis in the last decade, motivated in part by the introduction of the inerter, has led to the need for a better understanding of the most economical way to realize a given passive impedance. This monograph outlines the main contributions to the field of passive network synthesis and presents new research into the enumerative approach and the classification of networks of restricted complexity. Passive Network Synthesis: An Approach to Classification serves as both an ideal introduction to the topic and a definitive treatment of the Ladenheim catalogue. In particular, the authors provide a new analysis and classification of the Ladenheim catalogue, building on recent work, to obtain an improved understanding of the structure and realization power of the class within the biquadratic positive-real functions. This book is intended for researchers in systems and control, real algebraic geometry, electrical and mechanical networks, and dynamics and vibration.
| Author | : George H. Olsen |
| Publisher | : Elsevier |
| Total Pages | : 415 |
| Release | : 2013-10-22 |
| Genre | : Technology & Engineering |
| ISBN | : 1483135462 |
Electronics and Electronic Systems explores the significant developments in the field of electronics and electronic devices. This book is organized into three parts encompassing 11 chapters that discuss the fundamental circuit theory and the principles of analog and digital electronics. This book deals first with the passive components of electronic systems, such as resistors, capacitors, and inductors. These topics are followed by a discussion on the analysis of electronic circuits, which involves three ways, namely, the actual circuit, graphical techniques, and rule of thumb. The remaining parts highlight the fundamentals and components of analog and digital electronics. These chapters specifically tackle the mathematical techniques used in connection with both the j-notation and Laplace transforms. This book is an ideal source for first and second year undergraduates with degrees in electronics, electronic engineering, physics and other related subjects.
| Author | : J. C. Das |
| Publisher | : John Wiley & Sons |
| Total Pages | : 872 |
| Release | : 2015-02-24 |
| Genre | : Science |
| ISBN | : 1119035724 |
As new technologies are created and advances are made with the ongoing research efforts, power system harmonics has become a subject of great interest. The author presents these nuances with real-life case studies, comprehensive models of power system components for harmonics, and EMTP simulations. Comprehensive coverage of power system harmonics Presents new harmonic mitigation technologies In-depth analysis of the effects of harmonics Foreword written by Dr. Jean Mahseredijan, world renowned authority on simulations of electromagnetic transients and harmonics
| Author | : J. David Irwin |
| Publisher | : John Wiley & Sons |
| Total Pages | : 1723 |
| Release | : 2010-11-01 |
| Genre | : Technology & Engineering |
| ISBN | : 0470633220 |
Maintaining its accessible approach to circuit analysis, the tenth edition includes even more features to engage and motivate engineers. Exciting chapter openers and accompanying photos are included to enhance visual learning. The book introduces figures with color-coding to significantly improve comprehension. New problems and expanded application examples in PSPICE, MATLAB, and LabView are included. New quizzes are also added to help engineers reinforce the key concepts.
| Author | : Sergey V. Kochetov |
| Publisher | : |
| Total Pages | : 222 |
| Release | : 2008 |
| Genre | : |
| ISBN | : |
PEEC, computational electromagnetics.
