Distribution System Modeling and Analysis, Third Edition

✍ Scribed by Kersting, William H

• Publisher: CRC Press, Taylor & Francis Group [Distributor
• Year: 2012
• Tongue: English
• Leaves: 450
• Edition: 3rd ed.,Revised
• Category: Library

✦ Synopsis

Annotation

Updated to reflect the latest changes and advances in the field, Distribution System Modeling and Analysis, Third Edition again illustrates methods that will ensure the most accurate possible results in computational modeling for electric power distribution systems. With the same simplified approach of previous editions, this book clearly explains the principles and mathematics behind system models, also discussing the "smart grid" concept and its special benefits. However, this volume adds a crucial element not found in previous editions. The first two books developed models for all components but focused less on how to actually implement those models on a computer for planning and for real-time analysis. This book includes numerous models of components and several practical examples, to demonstrate how engineers can apply and customize computer programs to help them plan and operate systems. It also covers approximation methods to help users interpret computer program feedback, so they recognize when a result is not what it should be. Another improvement is the book's earlier introduction (in chapter 4) of the modified ladder iterative technique. The author explains the need for this method--which is used in most distribution analysis programs--detailing how it is applied and why it is among the most powerful options. Concluding with a detailed summary of presented topics that readers have come to expect, this edition provides useful problems, references, and assignments that help users apply Mathcad® and WIndmil programs to put their new learning into practice. An invaluable tool for engineering students and professionals worldwide, this book explores cutting-edge advances in modeling, simulation, and analysis of distribution systems that can ensure the continued dispersal of safe, reliable energy.Watch William H. Kerstig talk about his book at: http://www.youtube.com/watch?v=qmlDiH1ntuE. Read more...

Abstract:

Shows various trends and areas of interest in the power industry, technologies, and the rise of distributed generation and its impact on distribution systems. This title includes a chapter that discusses the center-tapped transformer and its role in providing three-wire service to single-phase customers. Read more...

✦ Table of Contents

Content: Introduction to Distribution Systems Distribution System Distribution Substations Radial Feeders Distribution Feeder Map Distribution Feeder Electrical Characteristics Nature of Loads Definitions Individual Customer Load Distribution Transformer Loading Feeder Load Approximate Method of Analysis Voltage Drop Line Impedance "K" Factors Uniformly Distributed Loads Lumping Loads in Geometric Configurations Series Impedance of Overhead and Underground Lines Series Impedance of Overhead Lines Series Impedance of Underground Lines Windmil Assignment Shunt Admittance of Overhead and Underground Lines General Voltage Drop Equation Overhead Lines Concentric Neutral Cable Underground Lines Tape-Shielded Cable Underground Lines Sequence Admittance Shunt Admittance of Parallel Underground Lines Windmil Assignment Distribution System Line Models Exact Line Segment Model Modified Line Model Approximate Line Segment Model Modified "Ladder" Iterative Technique General Matrices for Parallel Lines Windmil Assignment Voltage Regulation Standard Voltage Ratings Two-Winding Transformer Theory Two-Winding Autotransformer Step-Voltage Regulators Windmil Assignment Three-Phase Transformer Models Introduction Generalized Matrices Delta-Grounded Wye Step-Down Connection Delta-Grounded Wye Step-Up Connection Ungrounded Wye-Delta Step-Down Connection Ungrounded Wye-Delta Step-Up Connection Grounded Wye-Delta Step-Down Connection Open Wye-Open Delta Grounded Wye-Grounded Wye Connection Delta-Delta Connection Open Delta-Open Delta Thevenin Equivalent Circuit Windmil Assignment Load Models Wye-Connected Loads Delta-Connected Loads Two-Phase and Single-Phase Loads Shunt Capacitors Three-Phase Induction Machine Windmil Assignment Distribution Feeder Analysis Power-Flow Analysis Short-Circuit Studies Windmil Assignment Center-Tapped Transformers and Secondaries Center-Tapped Single-Phase Transformer Model Ungrounded Wye-Delta Transformer Bank with a Center-Tapped Transformer Leading Open Wye-Open Delta Transformer Connection Lagging Open Wye-Open Delta Connection Four-Wire Secondary Putting It All Together Windmil Assignment Appendix A: Conductor Data Appendix B: Underground Cable Data