Time-varying Waveform Distortions in Power Systems

by Ribeiro, Paulo Fernando

• ISBN13: 9780470714027
• ISBN10: 0470714026
• Edition: 1st
• Format: Hardcover
• Copyright: 2009-08-24
• Publisher: Wiley-IEEE Press

Summary

A comprehensive review of analytical signal processing techniques applied to power systems and power quality applications.This reference book is unique in addressing time-varying waveform and harmonic distortions. It details many different approaches, pooling cutting edge material from university lecturers and practising power engineers to provide a wide spectrum of expertise.Divided into clear sections, the book discusses a range of topics including... current and voltage variations; standards and measurement issues; advanced techniques such as spectral, time-frequency, probabilistic; and further methods, such as independent component analysis, and fuzzy logic.Case studies, real world data and examples (including basic application examples and sample waves from industrial sites) supplement the theory and demonstrate the methods shown.With extensive appendices in addition, this book is of great value to power systems, utility, maintenance and instrumentation engineers. It is also a useful source of information for researchers and consultants, university professors and graduate students in power systems and power quality areas.

Author Biography

Professor Paulo F. Ribeiro, Calvin College, Grand Rapids, Michigan, 49546, USA
Professor Ribeiro is professor of Engineering at Calvin College, Michigan. He has been involved with the application of advanced signal processing, applied to power quality and power systems in general, for the past fifteen years. For the past six years he has chaired the IEEE Task Force on Probabilistic Aspects of Harmonics. In 1994 he proposed the use of wallets to power quality applications; this has been followed by many people and has generated much research, several Masters and a PhD Thesis. Dr. Ribeiro is active in the IEEE, CIGRE and IEC working groups on power quality, and is a Registered Professional Engineer in the State of Iowa.

Table of Contents

Contributors

Preface

General Concepts and Definitions

Introductory Remarks on Probabilistic Aspects of Time-Varying Harmonics

Relationship between Probability Distribution and Spectral Analysis of Nonstationary Random Processes and the Concept of Evolutionary Spectrum

Comparison between Transients and Harmonics

Electric Power Definitions under Probability Conditions: the Randomness Power

Fourier Series: Visualizing Joseph FourierÆs Imaginative Discovery via FEA and TimeûFrequency Decomposition

Current Variations

Models for Representation and Summation of Random Harmonic Currents

Models for Currents Absorbed by Single High-power Loads

Voltage Variations

Models for Probabilistic Network Analysis

Impedance Modeling for Probabilistic Node Analysis

Standards and Measurement Issues

Time-Varying and Probabilistic Considerations: Setting Limits

Probabilistic Harmonic Indices

Measurement Techniques and Benchmarking

Applications and Case Studies

Harmonic Summation for Multiple Arc Furnaces

Transmission Systems û Treatment of Measured Harmonic Currents in Filters of an HVDC System

Advanced Techniques

Using Wavelets for Visualization and Understanding of Time-Varying Waveform Distortions in Power Systems

Wavelets for the Measurement of Electrical Energy Signals

A Conceptual Fuzzy Logic Application for Diagnosis of Time-Varying Harmonics in Power Systems

Real-time Simulation for Time-Varying Harmonic Distortion Analysis: a Novel Approach

Harmonic Load Identification Using Independent Component Analysis

Empirical Mode Decomposition û Enhancements to the HilbertûHuang Method for Power System Applications

Harmonic and Interharmonic Components Generated by Adjustable Speed Drives

Novel Method for Tracking Time-Varying Power Harmonic Distortions without Frequency Spillover

Sliding Window Recursive DFT with Dyadic Down-sampling û a New Strategy for Time-Varying Power Harmonic Decomposition

Phase-locked Loop û Time-Varying Harmonic Distortion Estimation Using PLL Based Filter Bank and Multirate Processing

Prony Analysis for Power System Transient Harmonics

Time-Varying Harmonic Currents from Large Penetration Electronic Equipment

Sample of Waveforms and Decompositions

Table of Contents provided by Publisher. All Rights Reserved.