In the field of aerospace power systems, there are few books on fault diagnosis and fault tolerant control based on sliding mode theory. On the basis of authors many years of technical research and the results of many scientific research projects, this book comprehensively expounds the key theories and main methods of fault diagnosis and fault tolerant control of aerospace power systems based on sliding mode theory. Several design methods for sliding mode observers and sliding mode controllers are introduced, and are utilized to realize fault diagnosis and fault tolerant control for some typical aerospace power systems. This book has remarkable characteristics of combining theory with engineering.Except the Chapter 1 which is the introduction, there are three parts in this book. The first part is about fault diagnosis methods for aerospace power systems, which includes six chapters. The second part includes five chapters and different sliding mode control methods for aerospace power systems are given. The third part is comprised of the remaining seven chapters, in which several fault tolerant control methods for aerospace

power systems are discussed.

This book can be used as reference book for scientific researchers, engineering technicians, teachers and senior undergraduates, masters and doctoral students, who are in the field of aerospace, automation, power machinery and engineering, specially enengaged in the research and application of system modeling,control,fault diagnosis, fault tolerance,etc.

Chapter 1 Introduction  1

1.1 Fault Diagnosis and Fault Tolerant Control Theory 1

1.1.1 Faults Classification  1

1.1.2 Fault Diagnosis  5

1.1.3 Fault Tolerant Control  7

1.2 Sliding Mode Theory  11

1.2.1 Sliding Mode Control  11

1.2.2 Sliding Mode Observer  12

1.3 Fault Diagnosis and Fault Tolerant Control Based on Sliding Mode  13

1.3.1 Fault Diagnosis Based on Sliding Mode Observer  13

1.3.2 Sliding Mode Fault Tolerant Control  14

1.4 Fault Diagnosis and Fault Tolerant Control in Aircraft Power Systems  15

1.4.1 Sliding Mode Fault Diagnosis in Aircraft Power Systems  15

1.4.2 Sliding Mode Fault Tolerant Control in Aircraft Power Systems 16

1.5 Structure of This Book  16

Chapter 2 Aircraft Engine Sensor Faults Diagnosis Based on Sliding Mode Observer by Using Residual  18

2.1 Aircraft Engine Mathematical Model  18

2.1.1 Aircraft Engine Linear Model  18

2.1.2 Establishment of Aircraft Engine State Space Variable Model Based on Least Square Fitting  21

2.2 Mathematical Model of Sensor Fault in Aircraft Engine  23

2.3 Fault Diagnosis Method Based on Residual Error  23

2.3.1 System Model with Sensor Faults 24

2.3.2 Observer Design and Stability Analysis  24

2.3.3 Parameter Solution of Sliding Mode Observer Based on Linear Matrix Inequality  25

2.3.4 Sensor Fault Detection Based on Sliding Mode Observer  27

2.4 Simulation  28

2.5 Conclusions  31

Chapter 3 Multi-sensors Fault Diagnosis of Aircraft Engine Based on Kalman Filter Group  32

3.1 Introduction  32

3.2 Aircraft Engine Model  33

3.3 Design of Sensor Fault Diagnosis System for Aircraft Engine  35

3.3.1 Single Sensor Fault Diagnosis  35

3.3.2 Multi-sensors Fault Diagnosis  36

3.4 Simulation  37

3.5 Conclusions  46

Chapter 4 Fault Identification for Turboshaft Engines Based on Fractional-order Sliding Mode Observer  47

4.1 Introduction  47

4.2 Turboshaft Engine Linearized Model  48

4.3 Fault Identification Based on Fractional-order Sliding Mode Observer  49

4.4 Simulation  51

4.5 Conclusions  55

Chapter 5 Robust Fault Identification of Turbofan Engine Sensors Based on Fractional-order Integral Sliding Mode Observer  56

5.1 Introduction  56

5.2 Equilibrium Manifold Expansion Model of Turbofan Engine  57

5.3 Fractional-order Integral Sliding Mode Observer for Fault Identification  58

5.3.1 Preliminaries of Fractional-order Calculus  58

5.3.2 Design of Fractional-order Integral Sliding Mode Observer  59

5.4 Simulation  64

5.5 Conclusions  70

Chapter 6 Aircraft Engine Gas Path Fault Diagnosis Based on HPSO-TWSVM  71

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Chapter 7 Fault Reconstruction of Actuator in Aircraft Engine Based on Equilibrium Manifold Expansion Model and Sliding Mode Observer  85

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Chapter 8 Sliding Mode Control for Aircraft Engine Based on Genetic Algorithm  90

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Chapter 9 Aircraft Engine Sliding Mode Control Based on Variable Parameter Model 109

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Chapter 11 Aircraft Engine Nonlinear Sliding Mode Control Based on Artificial Bee Colony Algorithm  138

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Chapter 12 Robust Control for Electric Fuel Pump with Variant Nonlinear Loads Based on a New Combined Sliding Mode Surface  154

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Chapter 13 Aircraft Engine Sliding Mode Fault Tolerant Control Based on Sliding Mode Observer  173

13.1 Robust Reconstruction of Sensor Faults Based on Sliding Mode Observer 173

13.1.1 Robust Reconstruction of Sensor Faults  178

13.1.2 Simulation  181

13.2 Design of Integral Tangent Adaptive Fuzzy Sliding Mode Fault Tolerant Control System for Aircraft Engine  186

13.3 Simulation  187

13.4 Conclusions  191

Chapter 14 Aircraft Engine Sliding Mode Fault Tolerant Control Based on Kalman Filter 192

14.1 Design of Aircraft Engine Sliding Mode Tracking Controller  192

14.1.1 Problem Description  192

14.1.2 Model Augmentation  193

14.1.3 Design of Sliding Surface  193

14.1.4 Design of Sliding Mode Control Law  195

14.1.5 Stability Analysis 196

14.2 Design of Aircraft Engine Sliding Mode Fault Tolerant Control  197

14.3 Simulation  197

14.4 Conclusions  202

Chapter 15 Sliding Mode Fault Tolerant Control for Aircraft Engine with Sensor Fault Based on PID Reaching Law  203

15.1 Introduction  203

15.2 Reconstruction of Sensor Fault Signal  203

15.3 System Description  205

15.4 Sliding Mode Fault Tolerant Controller Design for Sensor Fault 206

15.5 Simulation  207

15.5.1 Signal Reconstruction  207

15.5.2 PID Fault Tolerant Controller for Sensor Fault  209

15.5.3 H ∞ Fault Tolerant Controller for Sensor Fault  211

15.5.4 Sliding Mode Fault Tolerant Controller for Sensor Fault  213

15.6 Conclusions  214

16.1 Introduction  216

16.2 Design of Adaptive Fault Tolerant Controller 217

16.2.1 Engine Model  217

16.2.2 Adaptive Observer for Fault Diagnosis 217

16.2.3 Fault Tolerant Control Design  219

16.3 Simulation  220

16.4 Conclusions  225

Chapter 17 Sliding Mode Fault Tolerant Control for Aircraft Electric Fuel Pump with Actuator Fault 226

17.1 Fault Tolerant Controller Based on Walcott Zak Observer 226

17.1.1 Design of Fault Tolerant Control System  226

17.1.2 Simulation  228

17.2 Fault Tolerant Controller Based on Hybrid Nonsingular Fast Terminal Sliding Mode Observer  231

17.2.1 Design of Fault Tolerant Control System  231

17.2.2 Simulation  234

17.3 Conclusions  238

18.1 Introduction  239

18.2 Controller Design and Fault Tolerant Method 240

18.2.1 Problem Description  240

18.2.2 Guaranteed Cost Controller Design  242

18.2.3 Fault Tolerant Control Based on Kalman Filter  247

18.3 Simulation  248

18.4 Conclusions  250

19.1 Introduction  252

19.2 Mathematical Model of Aircraft Engine Control Systems  253

19.3 Main Results 256

19.3.1 Detection Observer Design  256

19.3.2 Adaptive Diagnostic Observer Design  256

19.3.3 Sliding Mode Fault Tolerant Control  257

19.3.4 Robust Stabilization Analysis 258

19.4 Simulation  261

19.5 Conclusions  267

References  268