E6-39-59-01.pdf - POWER SYSTEM TRANSIENTS - Introduction to...

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UNESCO-EOLSSSAMPLE CHAPTERSPOWER SYSTEM TRANSIENTS - Introduction to Transient Analysis of Power Systems - José L. Naredo , Juan A. Martinez-Velasco ©Encyclopedia of Life Support Systems(EOLSS) INTRODUCTION TO TRANSIENT ANALYSIS OF POWER SYSTEMS José L. NaredoCINVESTAV, Guadalajara, Mexico Juan A. Martinez-VelascoUniversitat Politècnica de Catalunya, Barcelona, SpainKeywords:Power system transients, electromagnetic transients, switching transients, wave propagation, lattice diagram, time domain analysis, frequency domain analysis, Laplace transform, Fourier transform, Numerical Laplace Transform, trapezoidal rule, transformed circuit, companion circuit, modeling, simulation, Electromagnetic Transients Program (EMTP). Contents 1. Transients in Power Systems 2. Power System Components 2.1. Introduction 2.2. Modeling for transient analysis 2.3. Basic circuit elements 3. Analysis of Switching Transients in Linear Systems 4. Wave Propagation in Power Systems 4.1. Introduction 4.2. Solution of the single-phase lossless line equations 4.3. Wave propagation and reflection 4.4. The lattice diagram 5. Techniques for Electromagnetic Transients Analysis 5.1. Introduction 5.2. Analytical solution techniques 5.2.1. The Laplace transform 5.2.2. Laplace-domain equivalents of basic circuit elements 5.2.3. Application of the Laplace transform 5.3. Numerical solution techniques in time domain 5.3.1. Introduction 5.3.2. The trapezoidal rule 5.3.3. Companion equivalents of basic circuit elements 5.3.4. Computation of transients in linear networks 5.4. Numerical solution techniques in frequency domain 5.4.1. Introduction 5.4.2. Relationship between Fourier and Laplace transforms 5.4.3. Numerical approximation of the Laplace integrals 5.4.4. Control of numerical errors 5.4.5. The Numerical Laplace Transform technique 6. Conclusion Glossary Bibliography
UNESCO-EOLSSSAMPLE CHAPTERSPOWER SYSTEM TRANSIENTS - Introduction to Transient Analysis of Power Systems - José L. Naredo , Juan A. Martinez-Velasco ©Encyclopedia of Life Support Systems(EOLSS) Biographical Sketches Summary This chapter provides an overview of the transient phenomena in electricpower supplysystems, as well as of the methodology being employed in their analysis. Power system elements are represented by diverse models which depend on the type of transient to be analyzed. Depending on the frequencies involved in the transient phenomena being studied, these elements may require a distributed-parameter representation, or a lumped one. Traveling wave phenomena are a central topic in the analysis of electromagnetic transient. A method to analyze traveling waves developed by Bewley is described here in detail as it provides deep understanding of the phenomena and their effects. Several techniques have been developed for transient analysis. Three of them are detailed in this chapter, namely: the analytic Laplace transform, the numerical method for time domain analysis developed by Dommel, and the Laplace numerical analysis method known as the Numerical Laplace Transform. Several examples are included with the purpose of

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Numerical Analysis, Electricity distribution, Transient Analysis of Power Systems

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