Fault Diagnosis and Fault Tolerant Control of Aerospace Powe

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

6.1 Introduction  71

6.2 A Description of Aircraft Engine Gas Path Fault Diagnosis  71

6.3 Basic Principle of TWSVM  73

6.4 Algorithm of TWSVM Based on HPSO-TWSVM  74

6.4.1 Characters and Principle of HPSO  74

6.4.2 Selection of Kernel Function  77

6.4.3 Training Algorithm of TWSVM  78

6.5 Gas Path Fault Diagnosis Based on HPSO-TWSVM  79

6.5.1 Review of Gas Path Fault Diagnosis Based on HPSO-TWSVM  79

6.5.2 Procedure of Gas Path Fault Diagnosis Based on HPSO-TWSVM  80

6.6 Simulation  82

6.7 Conclusions  84

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

7.1 Introduction  85

7.2 Fault Reconfiguration of Actuator  86

7.3 Simulation  87

7.4 Conclusions  88

Chapter 8 Slidin......

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.