Power Systems Harmonics: Fundamentals, Analysis and Filter Design

Front Cover
Springer Nature, Jun 12, 2019 - Technology & Engineering - 517 pages
The industry's widespread application of variable speed drives in the recent years accompanied by the electric utility's increasing use of capacitor banks have set the basis for paying considerable attention to the quality of electric power and seriously addressing the issue of current and voltage distortion, a major form of which is harmonic distortion. Harmonic studies are aimed at computing bus harmonic voltages, branch harmonic currents, and voltage and current total harmonic distortion (THD), as well as detecting resonance conditions. It is thus of great importance, when conducting harmonic studies, that system components are correctly mod elled to ensure accurate and reliable harmonic distortion results. Commercial programs are available for the analysis of harmonic problems. International standards are further being developed to assess harmonic distortion. Chapter 2 of this text provides some preliminaries. Characteristics of harmonics and measures of harmonic distortion are illustrated. The use of capacitor banks for reactive power supply and power factor correction is dis cussed. Resonance is explained. Origins of harmonic distortion are dealt with in Chapter 3. Chapter 4 is aimed at quantifying the effects of harmonic dis tortion on power system equipment and loads. Chapter 5 is devoted to the methods of reduction of power system harmonics. Limits of allowable voltage and current harmonic distortion set by IEEE, IEC, EN and NORSOK stan dards are presented in Chapter 6.
 

Contents

Introduction
1
2
8
6
23
11
37
45
44
TwelvePulse Converters
75
Introduction
81
Mitigation of Power System Harmonics
105
Transformer Modelling
169
Modelling of Transmission Lines Cables 221
220
Power System Harmonic Studies A Simple Approach
275
Bibliography
363
B Phase and Sequence Admittance Matrices for ThreePhase
390
B 5
423
4 Ygy96 Transformers
432
Transmission Matrices for ThreePhase Transformers
479

Limits of Harmonic Distortion
137

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