The Principles of Electronic and Electromechanic Power Conversion: A Systems Approach

504 Pages·2014·11.44 MB·English

by  Braham Ferreira

Table of Contents
Title Page
Copyright
Preface
Chapter 1: Introduction to Electrical Systems and Power
Conversion
1.1 Electricity as an Energy Carrier
1.2 Development of Electrical Energy Conversion Systems
1.3 System Building Blocks
1.4 Guide to the Book
Problems
Chapter 2: Electrical Power Sources and Energy Storage
2.1 Introduction
2.2 Primary Sources
2.3 Secondary Sources
2.4 Highlights
Problems
Chapter 3: Power, Reactive Power and Power Factor
3.1 Introduction
3.2 Power in DC Circuits
3.3 Power in Resistive AC Circuits
3.4 Effective or rms Values
3.5 Phasor Representation
3.6 Power in AC Circuits
3.7 Apparent Power, Real Power and Power Factor
3.8 Complex Power
3.9 Electrical Energy Cost and Power Factor Correction
3.10 Fourier Series
3.11 Harmonics in Power Systems
3.12 Power and Non-Sinusoidal Waveforms
3.13 Effective or rms Value of Non-Sinusoidal Waveforms
3.14 Power Factor of Non-Sinusoidal Waveforms
3.15 Harmonics in Power Systems
3.16 Three-Phase Systems
3.17 Harmonics in Balanced Three-Phase Systems
3.18 Highlights
Problems
Further Reading
Chapter 4: Magnetically Coupled Networks
4.1 Introduction
4.2 Basic Concepts
4.3 Mutual Inductance
4.4 Ideal Transformer
4.5 Highlights
Problems
Further Reading
Chapter 5: Dynamics of Rotational Systems
5.1 Introduction
5.2 Preliminaries
5.3 Rotational Dynamics
5.4 Coupling Mechanisms
5.5 Highlights
Problems
Further Reading
Chapter 6: Power Electronic Converters
6.1 Introduction
6.2 Linear Voltage Regulator
6.3 Switched Approach
6.4 Basic Assumptions
6.5 Buck Converter
6.6 Discontinious Conduction Mode
6.7 Other Basic Converter Structures
6.8 DC–DC CONVERTERS WITH ISOLATION
6.9 Highlights
Problems
Further Reading
Chapter 7: Simple Electrical Machines
7.1 Introduction
7.2 Motional Voltage and Electromagnetic Force
7.3 Simple Linear dc Machine
7.4 Basic Operation of the dc Machine
7.5 Practical DC Machine Construction
7.6 Practical DC Machine Configurations
7.7 DC Machine as A Component in A System
7.8 Highlights
Problems
Further Reading
Chapter 8: AC Machines
8.1 Introduction
8.2 Three-Phase AC Electrical Port
8.3 Ac Machine Stator
8.4 Synchronous Machine
8.5 Induction Machine
8.6 Highlights
Problems
Further Reading
Index

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Library of Congress Cataloging-in-Publication Data:
Ferreira, Braham, 1958—
The principles of electronic and electromechanic power conversion : a systems
approach / Braham Ferreira, Wim van der Merwe.
1 online resource.
Includes bibliographical references and index.
Description based on print version record and CIP data provided by publisher;
resource not viewed.
ISBN 978-1-118-79884-3 – ISBN 978-1-118-79885-0 (ePub) – ISBN 978-1-
118-65609-9 (cloth) 1. Power electronics. 2. Electric generators. I. Van der
Merwe, Wim, 1977-II. Title.
TK7881.15
′
621.31 7–dc23
2013029833
Preface
During the past forty years, electrical power conversion systems have evolved
considerably. Some technologies have matured, while others have undergone
substantial new development. Conversion systems have become more diverse
and sophisticated, and feature complex architectures that have improved
performance. Central and embedded controllers are now playing a prominent
role in managing power flow. Power is applied to loads with high precision, and
energy conversion efficiency is optimized at the same time. The volume of
power conversion knowledge has increased, and the average electrical engineer
deals increasingly with system aspects and less with component details.
The typical undergraduate student needs to study fundamentals as well as the
various disciplines of electrical and electronics engineering during a three or
four year study program. It is a full program, and it is not possible to introduce
more course material in a power conversion course on system-related issues
without condensing the content on components. In this book, we have strived to
strike a new balance between systems and components in a one semester course
that is intended for a bachelors undergraduate program. Alternatively, the book
may be used as a self-study book on the principles of power conversion by a
professional in science and engineering, who has sufficient mathematical
background.
This textbook is a result of many discussions with colleagues. Our observation
was that available undergraduate textbooks at this level follow a bottom-up
approach that is forty years old. Issues such as magnetic circuits and dc machine
field winding configurations receive a substantial amount of attention, while few
modern engineers need this knowledge. Power electronics is frequently treated
in a 1970s style, describing circuit topologies that are now being phased out and
using old-fashioned power devices. In this book, a compact treatise on magnetic
circuits is presented where the principles are introduced to gain a good
qualitative understanding, leaving practical magnetic circuit analysis and design
for follow-up courses. A modern simple approach to machines that makes the
principles of field-oriented control and space vector theory approachable to
undergraduate students is introduced. In power electronics, the focus is on
topologies that use a series transistor and diode combination that is connected to
a dc source because this has become a standard building block. The trend is that