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Modern Power Electronics and AC Drives

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Modern Power Electronics and AC Drives


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  • State-of-the-art coverage—Of power electronics and motor drive technology.
    • Gives students the latest information available on power electronics, as well as the practical applications of the technology to provide motion control in factories, transportation systems, and pump and blower dryers.

  • Individual chapters—On the intelligent control of drives through the application of Artificial Intelligence techniques such as expert systems, fuzzy logic, and neural networks.
    • Gives students insight into the future of power electronics.

  • Power electronics and drives in energy conservation—And their role in protecting the environment.
    • Provides students with a comprehensive overview of the potential value of power electronics in addition to their obvious practical applications.


  • Copyright 2002
  • Dimensions: 7" x 9-1/4"
  • Pages: 736
  • Edition: 1st
  • Book
  • ISBN-10: 0-13-016743-6
  • ISBN-13: 978-0-13-016743-9

An advanced, authoritative, and practical guide for state-of-the-art power electronics and AC drive technology.

A clear understanding of power electronics and AC drives is crucially important in a wide range of modern systems, from household appliances to automated factories—and it requires cross-disciplinary expertise that many engineers lack. Now, in Modern Power Electronics and AC Drives, one of the world's leading experts covers every aspect of the topic, including crucial innovations such as artificial intelligence, advanced estimation, and sensorless control. This book is not only important as an advanced reference but also covers the material for one senior-level and two graduate-level courses. Dr. Bimal K. Bose discusses these key points and many more.

  • Modern power semiconductor devices, converter circuits, and electrical machines
  • High-performance control of induction and synchronous motor drives
  • Energy saving control
  • Estimation, identification, and sensorless control of drives
  • Artificial intelligence techniques such as expert system, fuzzy logic, and neural network applied to power electronics and drives
  • Use of MATLAB-based toolboxes in simulation and design
  • Today's technology challenges—and tomorrow'

Today's technology innovations make it possible to deliver higher performance, lower cost power electronics and drives for a wide range of industrial, commercial, military, utility, and residential applications. Furthermore, it can help more efficient use of electricity and thus contribute to environmental protection. If you're a practicing engineer, Modern Power Electronics and AC Drives can help you achieve these results, regardless of your previous experience.

Sample Content

Table of Contents

(NOTE: Each chapter begins with an Introduction and concludes with a Summary and References.)


List of Principal Symbols.

1. Power Semiconductor Devices.

Diodes. Thyristors. Triacs. Gate Turn-Off Thyristors (GTOs). Bipolar Power or Junction Transistors (BPTs or BJTs). Power MOSFETs. Static Induction Transistors (SITs). Insulated Gate Bipolar Transistors (IGBTs). MOS-Controlled Thyristors (MCTs). Integrated Gate-Commutated Thyristors (IGCTs). Large Band-Gap Materials for Devices. Power Integrated Circuits (PICs).

2. AC Machines for Drives.

Induction Machines. Synchronous Machines. Variable Reluctance Machine (VRM).

3. Diodes and Phase-Controlled Converters.

Diode Rectifiers. Thyristor Converters. Converter Control. EMI and Line Power Quality Problems.

4. Cycloconverters.

Phase-Controlled Cycloconverters. Matrix Converters. High-Frequency Cycloconverters.

5. Voltage-Fed Converters.

Single-Phase Inverters. Three-Phase Bridge Inverters. Multi-Stepped Inverters. Pulse Width Modulation Techniques. Three-Level Inverters. Hard Switching Effects. Resonant Inverters. Soft-Switched Inverters. Dynamic and Regenerative Drive Braking. PWM Rectifiers. Static VAR Compensators and Active Harmonic Filters. Introduction to Simulation-MATLAB/SIMULINK.

6. Current-Fed Converters.

General Operation of a Six-Step Thyristor Inverter. Load-Commutated Inverters. Force-Commutated Inverters. Harmonic Heating and Torque Pulsation. Multi-Stepped Inverters. Inverters with Self-Commutated Devices. Current-Fed vs Voltage-Fed Converters.

7. Induction Motor Slip-Power Recovery Drives.

Doubly-Fed Machine Speed Control by Rotor Rheostat. Static Kramer Drive. Static Scherius Drive.

8. Control and Estimation of Induction Motor Drives.

Induction Motor Control with Small Signal Model. Scalar Control. Vector or Field-Oriented Control. Sensorless Vector Control. Direct Torque and Flux Control (DTC). Adaptive Control. Self-Commissioning of Drive.

9. Control and Estimation of Synchronous Motor Drives.

Sinusoidal SPM Machine Drives. Synchronous Reluctance Machine Drives. Sinusoidal IPM Machine Drives. Trapezoidal SPM Machine Drives. Wound-Field Synchronous Machine Drives. Sensorless Control. Switched Reluctance Motor (SRM) Drives.

10. Expert System Principles and Applications.

Expert System Principles. Expert System Shell. Design Methodology. Applications. Glossary.

11. Fuzzy Logic Principles and Applications.

Fuzzy Sets. Fuzzy System. Fuzzy Control. General Design Methodology. Applications. Fuzzy Logic Toolbox. Glossary.

12. Neural Network Principles and Applications.

The Structure of a Neuron. Artificial Neural Network. Other Networks. Neural Network in Identification and Control. General Design Methodology. Applications. Neuro-Fuzzy Systems. Demo Program with Neural Network Toolbox. Glossary.




It is with pride, excitement and a lot of expectations, I am presenting this book to the professional community of the world. As you know, power electronics and motor drives constitute a complex and interdisciplinary subject which have gone through spectacular evolution in the last three decades. Recently, artificial intelligence (AI) techniques are extending the frontier of this technology. It is without any doubt that the power electronics will play a dominant role in the 21st century in industrial, commercial, residential, aerospace, utility and military applications with the emphasis for energy saving and solving environmental pollution problems.

I have been in the power electronics area for more than forty years (since the technology was born) through my career pursuits in academia and industry, and have followed the technology evolution very aggressively. In the past, I contributed a number of books (authored and edited) in power electronics area of which Power Electronics and AC Drives (Prentice Hall-1986) is most important. It was taken as an advanced text in many universities in the world. This new book can be considered as significant updating and expansion of the previous book where I have tried to embed practically whatever knowledge I have in power electronics and ac drives. It contains the subject from A-to-Z, i.e., power semiconductor devices, electrical machines, different classes of converters, induction and synchronous motor drives with control and estimation, and AI techniques (expert system, fuzzy logic and neural networks). In essence, I have tried to incorporate practically all the aspects of state-of-the-art technology of power electronics and motor drives in the book. The content of the book is essentially based on my lecture notes of one senior course and three graduate courses, which I have developed and taught in the University of Tennessee during the last fourteen years. It will be my deep satisfaction if I can see that the book is being considered as a text in more universities than the previous one. The universities, which are already following my previous book, can now safely accept this new book.

The content of the book can be summarized as follows: Chapter 1 contains description of different types of power semiconductor devices including the recent IGCT, where IGBT device has been emphasized. Chapter 2 describes induction and synchronous machine theories in somewhat detail from the viewpoint of variable frequency drive applications, which include dynamic d-q machine models. Complex space vectors have been introduced but avoided in much of the text because, in the author's opinion, they tend to frighten most of the students. Switched reluctance machine has been included for completeness. Chapters 3 and 4 discuss the classical phase-controlled thyristor converters and cycloconverters, respectively. For completeness, high frequency link converters are included in Chapter 4. Chapter 5 covers voltage-fed converters and PWM techniques where space vector PWM has been emphasized. More recent topics, such as soft-switching, power factor compensation, multi-level converters, static VAR compensators and active filters are included. Chapter 6 deals with current-fed converters that include PWM converters. Chapter 6 describes slip power recovery drives with wound-rotor induction motors, and mainly consist of Kramer and Scherbius drives. Chapter 8 covers control and estimation of cage type induction motor drives which includes discussion on speed sensorless control and drive self-commissioning. Induction motor drive is a dominant theme in the book. Chapter 9 describes control and estimation of synchronous machine drives that includes sensorless control and a brief description of switched reluctance motor drive. Chapter 10 gives a brief description of expert system and its applications. In the author's opinion, ES has a lot of potentiality but has been practically ignored by the power electronics community. Chapter 11 deals with fuzzy logic and its applications, and finally, Chapter 12 gives description of neural network and its applications. In the author's opinion, the ANN technology will have a large impact on power electronics area in future. A set of questions has been formulated for different chapters which will be forwarded to readers on request bbose@utk.edu.


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