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Fundamentals of electric drives

Author: Mohamed A El-Sharkawi
Publisher: Pacific Grove, CA : Brooks/Cole, ©2000.
Edition/Format:   Print book : EnglishView all editions and formats
Summary:

This text presents the basic topics and fundamental concepts underlying electric machines, power electronics, and electric drives for electrical engineering. It takes readers through the analysis and  Read more...

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Material Type: Internet resource
Document Type: Book, Internet Resource
All Authors / Contributors: Mohamed A El-Sharkawi
ISBN: 0534952224 9780534952228
OCLC Number: 43411564
Notes: Includes index.
Description: xii, 314 pages : illustrations ; 25 cm
Contents: 1 Elements of Electric Drive Systems 1 --
1.1 Historical Background 2 --
1.2 Basic Components of an Electric Drive System 5 --
1.2.1 Mechanical Loads 6 --
1.2.2 Electric Motors 8 --
1.2.3 Power Sources 9 --
1.2.4 Converters 9 --
1.2.5 Controllers 10 --
2 Introduction to Solid-State Devices 12 --
2.1 Transistors 13 --
2.1.1 Bipolar Transistor 13 --
2.1.2 Field Effect Transistor (FET) 16 --
2.2 Thyristors 18 --
2.2.1 Four-Layer Diode 18 --
2.2.2 Silicon-Controlled Rectifier (SCR) 19 --
2.3 Other Power Devices 22 --
2.3.1 Darlington Transistor 22 --
2.3.2 Insulated Gate Bipolar Transistor (IGBT) 23 --
2.4 Ratings of Power Electronic Devices 24 --
2.5 di/dt and dv/dt Protection 26 --
3 Introduction to Solid-State Switching Circuits 31 --
3.1 Single-Phase, Half-Wave, ac/dc Conversion for Resistive Loads 31 --
3.1.1 Root-Mean-Squares 34 --
3.1.2 Electric Power 37 --
3.1.3 dc Power 40 --
3.1.4 Power Factor 41 --
3.2 Single-Phase, Full-Wave, ac/dc Conversion for Resistive Loads 43 --
3.3 Single-Phase, Half-Wave, ac/dc Conversion for Inductive Loads Without Freewheeling Diode 46 --
3.3.1 Average Voltage Across Inductance and Resistance 50 --
3.3.2 Average Power of Inductance 51 --
3.3.3 RMS voltage 52 --
3.4 Single-Phase, Half-Wave, ac/dc Conversion for Inductive Loads with Freewheeling Diode 53 --
3.5 Three-Phase, Half-Wave, ac/dc Conversion for Resistive Loads 58 --
3.6 Three-Phase, Half-Wave, ac/dc Conversion for Inductive Loads 61 --
3.7 Three-Phase, Full-Wave, ac/dc Conversion 63 --
3.8 dc/dc Conversion 69 --
3.9 dc/ac Conversion 73 --
3.9.1 Single-Phase, dc/ac Converter 73 --
3.9.2 Three-Phase, dc/ac Converter 74 --
3.9.3 Voltage, Frequency, and Sequence Control 81 --
3.9.4 Pulse-Width Modulation (PWM) 84 --
3.10 Energy Recovery Systems 87 --
3.10.1 Charging Operation 88 --
3.10.2 Discharging Operation 92 --
3.11 Three-Phase Energy Recovery Systems 95 --
3.12 Current Source Inverter 98 --
4 Joint Speed-Torque Characteristics of Electric Motors and Mechanical Loads 105 --
4.1 Bidirectional Electric Drive Systems 106 --
4.2 Four-Quadrant Electric Drive Systems 108 --
5 Speed-Torque Characteristics of Electric Motors 112 --
5.1 dc Motors 112 --
5.1.1 Separately Excited Motors 115 --
5.1.2 Shunt Motors 120 --
5.1.3 Series Motors 120 --
5.1.4 Compound Motors 123 --
5.2 Induction Motors 126 --
5.2.1 Equivalent Circuit 130 --
5.2.2 Power Flow 134 --
5.2.3 Torque Characteristics 139 --
5.2.4 Starting Procedure 142 --
5.3 Synchronous Motors 144 --
5.3.1 Reactive Power 147 --
5.3.2 Power Flow 149 --
5.3.3 Torque Characteristics 151 --
5.3.4 Starting Procedure 151 --
5.4 Damage to Electric Machines 152 --
6 Speed Control of Direct Current Motors 156 --
6.1 Speed Control of Shunt or Separately Excited Motors 156 --
6.1.1 Controlling Speed by Adding Resistance 157 --
6.1.2 Controlling Speed by Adjusting Armature Voltage 160 --
6.1.3 Controlling Speed by Adjusting Field Voltage 161 --
6.1.4 Solid-State Control 165 --
6.2 Speed Control of Series Motor 176 --
6.2.1 Controlling Speed by Adding Resistance to Armature Circuit 176 --
6.2.2 Controlling Speed by Adjusting Armature Voltage 178 --
6.2.3 Controlling Speed by Adjusting Field Current 178 --
7 Speed Control of Induction Motors 189 --
7.1 Basic Principles of Speed Control 189 --
7.2 Controlling Speed Using Rotor Resistance 190 --
7.3 Rotor Voltage Injection 194 --
7.4 Slip Energy Recovery 200 --
7.4.1 Controlling Speed by the Slip Energy Recovery Method 202 --
7.4.2 Torque-Current Relationship 203 --
7.4.3 Efficiency 204 --
7.5 Controlling Speed Using Inductance 209 --
7.6 Controlling Speed by Adjusting the Stator Voltage 209 --
7.7 Controlling Speed by Adjusting the Supply Frequency 211 --
7.7.1 Effect of Excessively Highc Frequency 212 --
7.7.2 Effect of Excessively Low Frequency 216 --
7.8 Voltage/Frequency Control 217 --
7.9 Current Source Speed Control 220 --
7.9.1 Induction Motor with Constant Frequency CSI 223 --
7.9.2 Induction Motor with Adjustable Frequency CSI 225 --
8 Braking of Electric Motors 231 --
8.1 Regenerative Braking 231 --
8.2 Dynamic Braking 233 --
8.3 Countercurrent Braking 235 --
9 Braking of dc Motors 236 --
9.1 Regenerative Braking of dc Shunt Motors 236 --
9.2 Regenerative Braking of dc Series Motors 243 --
9.3 Dynamic Braking of dc Shunt Motors 244 --
9.4 Dynamic Braking of dc Series Motors 247 --
9.5 Countercurrent Braking of dc Shunt Motors 248 --
9.5.1 Plugging 248 --
9.5.2 Braking by Terminal Voltage Reversal (TVR) 253 --
9.6 Countercurrent Braking of dc Series Motors 263 --
10 Braking of Induction Motors 269 --
10.1 Regenerative Braking 269 --
10.2 Dynamic Braking 275 --
10.3 Countercurrent Braking 277 --
11 Dynamics of Electric Drive Systems 283 --
11.1 Moment of Inertia 284 --
11.2 Basic Concept of Traveling Time 286 --
11.3 Gears and Belts 287 --
11.4 Traveling Time of dc Motors 290 --
11.5 Traveling Time of Induction Motors 295 --
11.5.1 Unloaded Induction Motor 297 --
11.5.2 Loaded Induction Motor 301 --
11.6 Traveling Time of Synchronous Motors 303.
Responsibility: Mohamed A. El-Sharkawi.
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1. ELEMENTS OF ELECTRIC DRIVE SYSTEMS Historical Background / Basic Components of an Electric Drive System 2. INTRODUCTION TO SOLID STATE DEVICES Transistors / Thyristors / Other Power Devices / Read more...

 
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