hamari acadmi: Power System Analysis

Power System Analysis
by John J. Grainger, William D. Stevenson, Jr.

Power System Analysis can serve as a basis for two semesters of under-graduate study or for first-semester graduate study. The wide range of topics facilitates versatile selection of chapters and sections for completion in the semester or quarter time frame. Familiarity with the basic principles of electric circuits, phasor algebra, and the rudiments of differential equations is assumed.The reader should also have some understanding of matrix operations and notation as they are used throughout the text. The coverage includes newer topics such as state estimation and unit commitment, as well as more detailed presentations and newer approaches to traditional subjects such as transformers, synchronous machines, and network faults. Where appropriate, summary tables allow quick reference of important ideas. Basic concepts of computer based algorithms are presented so that students can implement their own computer programs. Chapters 2 and 3 are devoted to the transformer and synchronous machine, respectively, and should complement material covered in other electric circuits and machines courses. Transmission-line parameters and calculations are studied in Chapters 4 through 6. Network models based on the admittance and impedance representations are developed in Chapters -; and 8, which also introduce gaussian elimination, Kron reduction, triangular factorization, and the Zbus building algorithm. The power-flow problem, symmetrical components, and unsymmetrical faults are presented in Chapters 9 through 12:whereas Chapter 13 provides a self-contained development of economic dispatch and the basics of unit commitment. Contingency analysis and external equivalents are the subjects of Chapter 14. Power system state estimation is covered in Chapter 15, while power system stability is introduced in Chapter 16. Homework problems and exercises are provided at the end of each chapter.

The aim here is to instill confidence and understanding of those concepts of power system analysis that are likely to to be encountered in the study and practice of electric power engineering. The presentation is tutorial with emphasis on a thorough understanding of fundamentals and underlying principles. Modern power systems have grown larger and more geographically expansive with many interconnections between neighboring systems. Proper planning, operation, and control of such large-scale systems require advanced computer based techniques, many of which are explained in a tutorial manner by means of numerical examples throughout this book. The senior undergraduate engineering student about to embark on a career in the electric power industry will most certainly benefit from the exposure to these techniques, which are presented here in the detail appropriate to an introductory level. Likewise,electric utility engineers, even those with a previous course in power system analysis, may find that the explanations of these commonly used analytic techniques more adequately prepare them to move beyond routine work. |EBOOK DOWNLOAD| |Pages 788| |Size 37.85MB|

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