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Advanced Electric Power Network Analysis

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This book focuses on the steady-state analysis of power systems, with more emphasis placed on network analysis. To meet the requirements for computerized calculations, mathematical expressions, such as matrix and vector descriptions, are adapted to computational solutions throughout the book. Mathematical modeling, methods of solution, and the implementation of computer programming are also integrated in a systematic manner. Part 1 introduces the fundamentals of electric power network analysis. The second part introduces the applications of steady-state analysis of electric power networks, with the focus on load flow and fault analysis. Apart from conventional load flow formulation, some special-purpose load flows, such as DC load flow, fast decoupled load flow, and sensitivity-based load flow, are discussed.rnPower systems are the largest artificial physical systems known in the world. Although recent technical progress in information technology has advanced very fast, humans cannot analyze and control a physical system directly because of its large size and fast response to external disturbances. The use of computerized digital simulation for electric power systems is a common practice in electric power system operation, control, and planning. The current concerns of power system engineers are the modeling of the physical electric power system mathematically; developing computerized algorithms to solve the mathematical model; and designing an efficient computer program to implement the algorithms.rnComputerized analysis and digital simulation for power systems are carried out under steady-state and transient-state conditions. However, steady-state analysis is the basis of other special power network analysis and simulations and therefore is of more importance. Computerized electric power network analysis is the kernel and the key for steady-state analysis and simulation of power systems.rnIn the past, there were many textbooks on power system analysis, some of which were written for postgraduate students. These textbooks usually include the full aspects of steady state and transient state; hence, such a wide coverage in content cannot satisfy the need in profoundity for postgraduate research. Moreover, the theories and solution methods of computerized electric power network analysis are published across numerous voluminous publications, thus reducing the accessibility of such knowledge to postgraduate students and academic reserachers. Therefore, a book that introduces computerized electric power network analysis is urgently needed to meet this requirement.rnThe first author of this book, Professor Boming Zhang, has been carrying out research in power system analysis and advanced computer application in electric power control centers for many years. Since 1990, he has been teaching power system analysis to Ph.D. candidates at Tsinghua University, Beijing, China. Collaboratinf with Professor Zheng Yan, they have written this book to propagate their combined years of experience (both academic and research) in energy management system in electric power control centers.rnThis book ghas following features:rn1. Strong innovation. Many novel content, creative concepts, and innovative solution methods are provided and explained clearly. The content in this book has intellectual depth and is therefore particularly suitable for postgraduate research and learning.rn2. Novel teaching method. Not only do the authors introduce the concepts and theories clearly, but they also explain how to analyze the problem and derive solutions using the methods explained in the earlier chapters of Part I.rn3. Written for a wide audience. This book introduces basic and common problems in electric power network analysis. This will satisfy the needs of postgraduate students and academic researchers from the divers specialities of power system analysis.rn4. Combination of theory with practice. Most of the concepts and solution methods intoduced in this book can also be used as practical applications of power system analysis, which is especially useful for practicing power system engineers.rnThe book covers the topics of: the mathematical model of power flow calculations; determination of solution methods; and implementation of algorithmic programming as an integer; which can be adapted according to the requirements of computerized power system analysis. In addition, this book pair mathematical analysis with explaination of the physical concepts, to enhance readers' understanding of the more profound topics. At the same time, graphical-based descriptions are used to explain matrix calculations for network equation solutions. Some examples and problems included in this book also help readers, even beginners, to understand those abstruse theories easily.rnThis book is rich in content; many research results achieved by the authors have also been included. It is a useful textbook and a valuable reference for postgraduate students and academic researchers. This book is written with a high degree of technical competence, caters to a wide audience in the power system research community; and contains great reference information for postgraduate research and studies.rnEfforts in making a smart electric grid began after the U.S. Northeast Blackout of 1965. Digital computers were introduced in control centers to process real-time data obtained from SCADA (supervisory control and data aquisition) systems where measurements of physical variables at substation RTUs (remote terminal units) were collected and sent through dedicated communication channels to the control center. The software at the control centers performs generation control and network analysis functions. Since the 1970s, tremendous progress has been made in network analysis to enhance the security and reliability of power system operations. Advances in methodologies and techniques at all fronts, including modeling, formulation, computational methods, solution algorithms, and programming have flourished. Today, functional analysis such as state estimation, contingency analysis, optimal power flow, congestion management, and so on, for networks with several thousand buses are routinely run in modern control centers. This book helps readers to understand the fundamentals of the modeling, analysis, and computation behind these applications. The authors of this book have distilled the fundamentals from the vast amount of theoretical and practical contributions made in network analysis in the last couple of decades and have presented them in a highly systematic manner.rnThe rapid technological development in the field of electric power systems has increased the complexity in planning, managing, and controlling power systems. Computer simulation and computation have been deployed in almost all the application areas of power systems. The deregulation of the electric power industry further drives up the transmission capacity limit in the operation of power grids. All these call for a more comprehensive, accurate, and faster analysis of power grids, which needs to be supported by theories and methods in computerized analysis. This book was written to meet this need.rnThis book was first written in Chinese (first edition in 1996 and second edition in 2007, both published by Tsinghua University Press), and it has been used as a textbook for postgraduate students of Tsinghua University for more than 10 years. This English edition focuses on the steady-state analysis of power systems, with more attention paid to the aspects of network analysis. In order to meet the requirements for computerized calculations, mathematical expressions, such as matrix and vector descriptions, are adapted to computational solutions throughout the book. Mathematical modeling, methods of solution, and the implementation of computer programming are also integrated in a systematic manner. In order to help readers better understand certain concepts, physical explanations are combined with graphical descriptions. Sufficient examples and exercises are also provided. Of course, the best way for readers to grasp these concepts is to do more programming exercises.rnThis book consists of two parts. Part 1 introduces the fundamentals of electric power network analysis, such as network graph theory; network equations; network matrices; formation and modification of Y and Z matrices; sparse matrix and sparse vector techniques; modified solutions of network equations; transformation, reduction, and equivalence of networks; and piecewise solutions of network equations. Although no practical applications are covered in this part, the content is indispensable to a variety of applications in electric power system analysis.rnThe second part introduces the applications of steady-state analysis of electric power networks, with the focus on load flow and fault analysis. Apart from conventional load flow formulation, some special-purpose load flows, such as DC load flow, fast decoupled load flow, and sensitivity-based load flow, are discussed. Load flow adjustment and control, ill-conditioned load flow calculation, and continual power flow are also introduced. Load flow problems have been extended to many other aspects as well, such as dynamic load flow, probability load flow, optimal power flow, and outage power flow. Problems in load flow applications are presented and a few efficient solution methods are provided. The mechanism of load flow convergence is also analyzed in this part. Fault analysis is introduced using a systematic style for the sake of computerized solutions. Instead of using the traditional series network connection method, a universal fault circuit model is introduced that can be adapted to any kind of faults for computerized solutions.

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Ketersediaan

090101863

Tersedia

Informasi Detil

Judul Seri

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No. Panggil

621.316 313 ZHA a

Penerbit

Cengage Learning : Singapore., 2011

Deskripsi Fisik

xxiii, 414 p.

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

NONE

Tipe Isi

-

Tipe Media

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Tipe Pembawa

-

Edisi

-

Subyek

-

Info Detil Spesifik

-

Pernyataan Tanggungjawab

-

Versi lain/terkait

Lampiran Berkas

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