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Electrical Machines, Drives and Power Systems
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by: Theodore Wildi, Sperika Enterprises Ltd.
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Description
For courses in Motor Controls, Electric Machines, Power Electronics, and Electric Power.
This best-selling text employs a theoretical, practical, multidisciplinary approach to provide introductory students with a broad understanding of modern electric power. The scope of the book reflects the rapid changes that have occurred in power technology over the past few yearsallowing the entrance of power electronics into every facet of industrial drives, and expanding the field to open more career opportunities.
Table of Contents
Part I: FUNDAMENTALS
1) Units
2) Fundamentals of Electricity, Magnetism and Circuits
3) Fundamentals of Mechanics and Heat
Part II: ELECTRICAL MACHINES AND TRANSFORMERS
4) Direct-Current Generators
5) Direct-Current Motors
6) Efficiency and Heating of Electrical Machines
7) Active, Reactive, and Apparent Power
8) Three-Phase Circuits
9) The Ideal Transformer
10) Practical Transformers
11) Special Transformers
12) Three-Phase Transformers
13) Three-Phase Induction Motors
14) Selection and Application of Three-Phase Induction Machines
15) Equivalent Circuit of the Induction Motor
16) Synchronous Generators
17) Synchronous Motors
18) Single-Phase Motors
19) Stepper Motors
Part III: ELECTRICAL AND ELECTRONIC DRIVES
20) Basics of Industrial Motor Control
21) Fundamental Elements of Power Electronics
22) Electronic Control of Direct-Current Motors
23) Electronic Control of Alternating Current Motors
Part IV: ELECTRIC UTILITY POWER SYSTEMS
24) Generation of Electrical Energy
25) Transmission of Electrical Energy
26) Distribution of Electrical Energy
27) The Cost of Electricity
28) Direct-Current Transmission
29) Transmission and Distribution Solid-State Controllers
30) Harmonics
References
Appendix A: Conversion Charts
Appendix B: Properties of Insulating Materials
Appendix C: Properties of Conductors and Insulators
Appendix D: Properties of Round Copper Conductors
Answers to Problems
Answers to Industrial Application Problems
Problems
Index
Features
NEWDoubly-fed induction machine properties and behaviorFor use as a wind turbine generator to produce electricity.
NEWPulse-width modulation (PWM) modifications.
NEWDirect Torque Control (DTC) coverage.
NEWWind power and the use of turbines.
NEWThe HVDC Light method of transmitting electric power.
Reviews:
Comprehensive but lacking detail, some errors in answers
You'd think that by the 6th edition, most of the errors would be fixed. This is not the case. The answers to some of the problems have errors and I was unable to find an errata.
The coverage is broad, as would be expected from a single book trying to cover most of power systems. As a result, needed detail is lacking. For instance, a good portion of the time the book only covers magnitude calculations and phase coverage suffers because of it. However, for undergraduates who will have only one power course, it is comprehensive and covers the most important material well.
One thing I'd like to see in future editions is a treatment of power flow analysis. Although it has a lot of pictures of real equipment, much of it is very hard to make out. Clearer pictures in a future edition would be a nice upgrade as well.
For people who complain that this isn't for first year students or self-study, I have one thing to say: duh. It is very difficult, though not impossible, to learn engineering on your own. The biggest mistake self-study people make is not being strong in math and physics. You must learn calculus and electromagnetics before you get into anything beyond basic logic, or you will be lost.
I had engineering science program years ago , but not much electrial circuits- just the basics. I bought this book for self-study. I read through the first eight chapters and worked a lot of the problems without much problem. I then read the chapters on the smaller electric motors and some about controls. Its not a begineers self-study book. If you have the background you can learn from this book;however, I had to read some of the material over several times to understand it. I still didn't feel like I had a good understanding about the basics of electric motors. Like how to wire them up, how to read the nameplate and so forth. This book is for the classroom and lab. It has a lot of information. My local university uses it in their technology program for three different courses I think.
This text is well organized and presents a wide range of topics in sufficient detail for many engineers and managers. Pictures and diagrams of equipment are abundant, as are electrical equations, waveforms, and phasor diagrams. Historical perspectives and advantages/disadvantages are included. It is surprising for one text to contain such breadth and depth, including transformers, motors, generators, controls, power electronics, utility systems, and harmonics. It was one of two books used in preparation for, and during, the PE exam; it continues to be a learning tool and reference.