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Tables of Contents for Induction Motors
Chapter/Section Title
Page #
Page Count
Main Parameters of Induction Motors
Introduction
1
1
Structural Elements of Induction Motors
2
5
Parameter Calculation
7
6
Electromagnetic Space Vectors and General Equivalent Circuits
Introduction
13
1
Magneto-Motive Forces and Currents
14
8
Magnetic Energy Stored In the Machine-Magnetizing Energy
22
2
Torque
24
1
Voltage Equations
25
1
General Equivalent Circuits
26
3
Power Considerations
29
4
Steady-State Three-Phase Induction Motors
Introduction
33
1
Statement of the Problem
33
5
Determination of the Equivalent Circuit Parameters
38
3
Magnetizing Energy and Torque
41
1
Input Impedance and Admittance-Current-Transfer Ratio
41
3
Voltage-Source Line-Fed Induction Motors Under Steady-State Conditions
44
8
Phase Currents
44
1
Torque
45
1
Magnetizing Energy
46
1
Full-Load Regime
47
2
Order of Magnitude of Variables in a Voltage-Source Line-Fed Induction Motor
49
2
Line-Fed Induction Motors at Start-up
51
1
Power Considerations
52
2
Current-Source Line-Fed Induction Motors
54
5
Magnetizing Energy
54
1
Torque
55
2
Order of Magnitude of Variables in a Current-Source Line-Fed Induction Motor
57
1
Current-Source Line-Fed Induction Motors at Start-Up
58
1
Negative-Sequence Applied Voltages
59
3
Induction Motors Fed from Unbalanced Voltage Source
62
5
Phase Currents
64
1
Magnetizing Energy
64
1
Torque
64
3
Asymmetric Three-Phase Induction Motors in Steady-State Regimes
67
10
Steady-State Single-Phase Induction Motors
Introduction
77
2
Equations for Single-Phase Motors
79
4
Stator Currents
80
1
Rotor Currents
80
1
Magnetizing Energy
81
1
Torque
82
1
Line-Fed Single-Phase Induction Motors
83
4
Line Voltage
83
2
Magnetizing Energy and Torque
85
2
Phase Current
87
1
Equivalent Circuit
87
4
Determination of the Equivalent Circuit Parameters
91
4
Induction Motors in Transient Regimes
Introduction
95
1
Operating Equations in Transient Regimes
96
1
Transient Analysis in the time Domain
96
6
Electromagnetic Transients with Rapidly Changing Angular Velocity
97
1
Electromagnetic Transients with Slowly Changing Angular Velocity
98
2
Transient Analysis of Inverter-Fed Induction Motors
100
2
Transient Analysis in the Frequency Domain
102
2
Examples of Simulation
104
5
Start-Up from Standstill
104
1
Take-Over of a De-Energized Motor
105
1
Inverter-Fed Induction Motors with Frozen Power Switches
105
4
Inverter-Fed Induction Motors
Introduction
109
1
Voltage-Source Inverters
110
2
Natural Pulse Pattern of Inverters
112
3
Natural Pulse Pattern of a Two-Level Inverter
112
1
Natural Pulse Pattern of a Three-Level Inverter
113
2
Scanning Modes
115
2
Periodic Scanning Modes-Output Waveforms
115
2
Spectral Analysis of Periodic Waveforms-Total Harmonic Distortion
117
1
Space Vector Modulation
118
6
Basic Idea
118
3
Uniform Waveforms Obtained Using Space Vector Modulation
121
1
Required Switching Frequency
122
1
Output Current Waveforms
123
1
Voltage Space Vector Applied Across the Load
124
1
Y-Connected Load
124
1
Δ-Connected Load
124
1
Harmonics
125
1
Voltage Harmonics
126
22
Harmonic Components of Single-Pulse Waveforms
126
2
Harmonic Components of P-Pulse Waveforms
128
2
Harmonic Components of Uniform Waveforms
130
7
Harmonic Components of Quasi-Uniform Waveforms
137
5
Harmonic Components of Modulated Waveforms
142
6
Current Harmonics
148
2
Current Harmonics in Various Load Phases
148
1
Current Harmonics of Input Lines
149
1
Current-Source Inverters
150
7
Induction Motors Torque Control
Introduction
157
1
Vector Control
158
21
Principle of the Computed Charge Acceleration Method (C.C.A.M)
159
3
Implementation of the C.C.A.M
162
6
Other Vector Control Approaches
168
2
Vector Control Simulation Results
170
9
Scalar Control
179
19
Scalar Control Principle
180
2
Scalar Control Operating Conditions
182
8
Scalar Control Simulation Results
190
8
Evaluation of the Stator and Rotor Resistance
198
4
Principle of Speed Calculation
202
1
Speed Regulation
203
2
Appendix A Field-Oriented Control
A.1 Introduction
205
1
A.2 Preliminary Investigations
205
2
A.3 Field-Oriented Control
207
6
Appendix B Direct Torque Control
B.1 Introduction
213
1
B.2 Direct Torque Control Principle
213
4
Appendix C Double-Cage Induction Motors
C.1 Introduction
217
1
C.2 Voltage Equations in Double-Cage Induction Motors
217
2
C.3 General Equivalent Circuit of Double-Cage Induction Motors
219
3
C.4 Steady-State Equivalent Circuit of Double-Cage Induction Motors
222
3
Appendix D Transient Analysis in Single-Phase Induction Motors
D.1 Introduction
225
1
D.2 Transients in Three-Phase Induction Motors
225
2
D.3 Transients in Single-Phase Induction Motors
227
2
Appendix E Synchronous Motors Torque Control
E.1 Introduction
229
1
E.2 Operating Equations of Cylindrical-Rotor Synchronous Motors
230
3
E.3 Torque Control of Cylindrical-Rotor Synchronous Motors
233
1
E.4 Examples of Simulations
234
3
E.5 Operating Equations for Salient-Pole Synchronous Motors
237
2
E.6 Torque Control of Salient-Pole Synchronous Motors
239
3
E.7 Operating Equations for Synchronous Machines with Damper Cages and Field Winding
242
15
E.7.1 Cylindrical-Rotor Synchronous Machines
244
8
E.7.2 Salient-Pole Synchronous Machines
252
5
References
257
2
Subject Index
259
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