Introduction to Power Electronics

by Paul H. Chappell

Overview

The subject of power electronics is concerned with solid state devices for the control and conversion of electrical power. These silicon devices are designed for the transfer current from one part of an electrical circuit to another and the synthesis of voltage and current waveforms. Power electronics has a wide range of applications, from the small systems used in electrical appliances to the very large systems for the supply and distribution of electricity. Containing useful concepts and the building blocks that go into making a power converter operate successfully, this book provides a description of the characteristics of different types of power semiconductor devices and their application to power converter circuits. Applications to power transmission, electric drives, and medical equipment are also included to illustrate the wide range of power electronics in both small- and high-power circuits.

Product Details

ISBN-13:	9781608078608
Publisher:	Artech House, Incorporated
Publication date:	01/01/2014
Sold by:	Barnes & Noble
Format:	eBook
File size:	19 MB
Note:	This product may take a few minutes to download.

Table of Contents

Preface 11

1 Introduction 13

1.1 Power Semiconductor Devices 14

1.2 Power Conversion 14

1.3 Passive Components 16

1.4 Parameters and Analysis of Waveforms 17

1.5 Ideal Power Device 17

1.6 Practical Device 18

1.7 Sources of Information 19

Selected Bibliography 19

2 Diode 21

2.1 Ideal Characteristic of a Diode 21

2.2 Simple Diode Model 21

2.3 Diode Model 23

2.4 Power Dissipation 25

2.5 Free-Wheeling Diode (Fly-Wheel) 26

2.6 Zener Diode 27

2.7 Schoctky Diode 28

Selected Bibliography 28

3 Thyristor 29

3.1 Gate Isolation Circuit 31

3.2 Snubber 32

3.3 Natural Commutation 33

3.4 Single-Phase AC Supply with Single-Gate Pulse Applied to a Thyristor and Resistive Load 33

3.5 Single-Phase Supply with Single-Gate Pulse Applied to a Thyristor and Inductance Load 36

3.6 Forced Commutation 41

3.7 Triac 42

3.8 Gate Turn-Off Thyristors 42

Selected Bibliography 44

4 Transistors 45

4.1 Safe Operating Area 45

4.2 Snubber 47

4.3 Metal Oxide Semiconductor Field Effect Transistor 52

4.4 Insulated Gate Bipolar Transistor 56

4.5 Guide to Power Level and Frequency 58

Selected Bibliography 58

5 Heating and Cooling 59

5.1 Thermal Resistance 59

5.2 Equivalent Circuit 60

5.3 Transient Thermal Resistance 61

Selected Bibliography 63

6 Phase-Controlled Thyristor Converters and Diode Rectifiers 65

6.1 Phase-Controlled AC Thyristor Converter 65

6.2 Single-Phase Converter 67

6.3 Three-Phase Converter 70

6.4 Overlap 77

6.5 Inversion 81

6.6 Power Systems 82

6.7 DC Motor Drive 84

Selected Bibliography 86

7 Cycloconverter 87

7.1 Single-Phase Cycloconverter 87

7.2 Three-Phase Cycloconverter 91

8 Inverter 93

8.1 Single-Phase Inverter 93

8.2 Three-Phase Inverter 93

9 DC-to-DC Converters 99

9.1 Inductive Load 99

9.2 DC Machine 103

9.3 Regeneration 110

9.4 Step-Up and Step-Down DC-to-DC Converters 112

9.5 Step-Down (Buck) Converter 112

9.6 Step-Up (Boost) Converter 120

Selected Bibliography 128

10 Systems and Methods 129

10.1 Logic Switching 129

10.2 Defibrillator and Transcranial Magnetic Stimulator 130

10.3 Synchronization to an AC Supply 135

10.4 Measurement of Current and Voltage 141

10.5 Lowpass Filter 144

10.6 Circuit Protection 145

10.7 Fourier Series 147

10.8 AC Line Transient Suppression 150

10.9 Efficiency of DC Converters 150

10.10 Chaotic Behavior in Diode Circuits 153

Reference 156

Selected Bibliography 156

11 Examples 157

Example 11.1 157

Example 11.2 158

Example 11.3 160

Example 11.4 160

Example 11.5 162

Example 11.6 164

Example 11.7 165

Example 11.8 166

Example 11.9 167

Example 11.10 169

Example 11.11 171

Example 11.12 177

Example 11.13 185

Example 11.14 188

Comment on the Fourier Series Examples 190

List of Symbols 191

About the Author 195

Index 197