电气工程及其自动化专业英语PDF电子书下载

1 Basic Concepts of Electric Circuits 1

1.1 Introduction 1

1.2 Charge and Current 2

1.3 Voltage 3

1.4 Power and Energy 3

1.5 Summary 5

2 Basic Laws of Electric Circuit 7

2.1 Introduction 7

2.2 Ohm's Law 7

2.3 Kirchhoff's Laws 10

2.4 Series Resistors and Voltage Division 10

2.5 Parallel Resistors and Current Division 11

2.6 Summary 12

3 Capacitors and Inductors 15

3.1 Introduction 15

3.2 Capacitors 15

3.3 Inductors 18

3.4 Summary 20

4 Electronic System 23

4.1 Introduction 23

4.2 Electronic System Block Diagrams 23

4.3 Information Processing Versus Power Electronics 24

4.4 Analog Versus Digital Systems 24

4.5 Conversion of Signals from Analog to Digital Form 25

4.6 Relative Advantages of Analog and Digital Systems 26

5 Operational Amplifiers 30

5.1 Introduction 30

5.2 Operational Amplifiers 30

5.3 Ideal op-amp 32

5.4 Inverthng Amplifier 33

5.5 Noninverting Amplifier 34

5.6 Summary 35

6 Digital Logic Circuits 37

6.1 Basic Concepts 37

6.1.1 Logic Variables and Digital Words 37

6.1.2 The AND Gate 37

6.1.3 The Logic Inverter 38

6.1.4 The OR Gate 38

6.1.5 Boolean Algebra 38

6.1.6 NAND,NOR,and XOR Gates 38

6.1.7 Logical Sufficiency of NAND Gates and of NOR Gates 39

6.2 Electrical Specifications for Logic Gates 40

6.2.1 Logic Ranges 40

6.2.2 Positive Versus Negative Logic 40

6.2.3 Input and Output Currents 40

7 Transformer 43

7.1 Introduction 43

7.2 Construction of Transformer 44

7.3 The Ideal Transformer 45

科技英语学习要点（一） 50

8 Electrical Machines 55

8.1 A Brief Overview 55

8.2 Induction Machines 56

8.2.1 Introduction 56

8.2.2 Induced Voltages 58

8.3 Synchronous Machines 58

8.3.1 Introduction 58

8.3.2 Construction of Synchronous Machines 58

8.4 Direct-Current Machines 59

8.4.1 Introduction 59

8.4.2 Armature Voltage 60

9 Automatic Control Systems 64

9.1 Introduction 64

9.2 Block Diagrams and Transfer Functions 64

9.2.1 Block Diagrams 65

9.2.2 Transfer Functions 66

9.3 Open-Loop Control 66

9.4 Closed-Loop Control:Feedback 67

9.5 Objectives of a Control System 68

10 Measurement 72

10.1 Introduction 72

10.2 Statistics 72

10.3 Operating Characteristics 73

10.3.1 Measurement 73

10.3.2 Operation 74

l0.4 Static Characteristics 74

10.5 Velocity Measurement 75

10.5.1 Sensing Methods 75

10.5.2 DC Tachometers 76

10.5.3 AC Tachometers 76

10.5.4 Optical Tachometers 76

11 Switching Components 79

11.1 Introduction 79

11.2 Mechanical Switching Components 79

11.2.1 Mechanical Switches 79

11.2.2 Relays 81

11.2.3 Time-Delay Relays 81

11.2.4 Contactors and Motor Starters 82

11.3 Solid-State Components 83

11.3.1 Diodes 83

11.3.2 Transistors 84

11.3.3 Silicon-Controlled Rectifiers 84

11.3.4 Triacs 84

12 Power Semiconductor Switches 88

12.1 Introduction 88

12.2 Thyristors 88

12.3 Metal-Oxide-Semiconductor Field Effect Transistors 90

12.4 Gate Turn-Off Thyristors 91

12.5 Insulated Gate BipolarTransistors 92

12.6 Desired Characteristics in Controllable Switches 93

13 Rectifiers and Inverters 96

13.1 Introduction 96

13.2 Basic Rectifier Concepts 97

13.2.1 Pure Resistive Load 97

13.2.2 Inductance Load 97

13.2.3 Load with an Internal DC Voltage 99

13.3 Practical Thyristor Converters 100

13.4 Inverter Mode of Operation 101

14 Basic Knowledge of Power Systems 105

14.1 Introduction 105

14.2 Electrical Energy 105

14.3 Fossil-Fuel Plant 105

14.4 Nuclear Power Plant 106

14.5 Hydroelectric Power Plant 107

14.6 Other Energy Sources 107

14.7 Transmission and Distribution Systems 107

14.8 Faults 108

14.9 System Protection Components 109

科技英语学习要点（二） 113

练习参考答案 121

参考文献 133