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Viser: Process Control System Fault Diagnosis - A Bayesian Approach

Process Control System Fault Diagnosis: A Bayesian Approach, 1. udgave
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Process Control System Fault Diagnosis: A Bayesian Approach Vital Source e-bog

Ruben Gonzalez, Fei Qi og Biao Huang
(2016)
John Wiley & Sons
1.312,00 kr.
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Process Control System Fault Diagnosis - A Bayesian Approach

Process Control System Fault Diagnosis

A Bayesian Approach
Ruben Gonzalez, Fei Qi og Biao Huang
(2016)
Sprog: Engelsk
John Wiley & Sons, Incorporated
1.345,00 kr.
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Detaljer om varen

  • 1. Udgave
  • Vital Source searchable e-book (Reflowable pages)
  • Udgiver: John Wiley & Sons (Juli 2016)
  • Forfattere: Ruben Gonzalez, Fei Qi og Biao Huang
  • ISBN: 9781118770597
Process Control System Fault Diagnosis: A Bayesian Approach Ruben T. Gonzalez, University of Alberta, Canada Fei Qi, Suncor Energy Inc., Canada Biao Huang, University of Alberta, Canada   Data-driven Inferential Solutions for Control System Fault Diagnosis   A typical modern process system consists of hundreds or even thousands of control loops, which are overwhelming for plant personnel to monitor. The main objectives of this book are to establish a new framework for control system fault diagnosis, to synthesize observations of different monitors with a prior knowledge, and to pinpoint possible abnormal sources on the basis of Bayesian theory. Process Control System Fault Diagnosis: A Bayesian Approach consolidates results developed by the authors, along with the fundamentals, and presents them in a systematic way. The book provides a comprehensive coverage of various Bayesian methods for control system fault diagnosis, along with a detailed tutorial. The book is useful for graduate students and researchers as a monograph and as a reference for state-of-the-art techniques in control system performance monitoring and fault diagnosis. Since several self-contained practical examples are included in the book, it also provides a place for practicing engineers to look for solutions to their daily monitoring and diagnosis problems.   Key features: •             A comprehensive coverage of Bayesian Inference for control system fault diagnosis. •             Theory and applications are self-contained. •             Provides detailed algorithms and sample Matlab codes. •             Theory is illustrated through benchmark simulation examples, pilot-scale experiments and industrial application.   Process Control System Fault Diagnosis: A Bayesian Approach is a comprehensive guide for graduate students, practicing engineers, and researchers who are interests in applying theory to practice.
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Detaljer om varen

  • Hardback: 360 sider
  • Udgiver: John Wiley & Sons, Incorporated (September 2016)
  • Forfattere: Ruben Gonzalez, Fei Qi og Biao Huang
  • ISBN: 9781118770610

Process Control System Fault Diagnosis: A Bayesian Approach

Ruben T. Gonzalez, University of Alberta, Canada

Fei Qi, Suncor Energy Inc., Canada

Biao Huang, University of Alberta, Canada

 

Data-driven Inferential Solutions for Control System Fault Diagnosis

 

A typical modern process system consists of hundreds or even thousands of control loops, which are overwhelming for plant personnel to monitor. The main objectives of this book are to establish a new framework for control system fault diagnosis, to synthesize observations of different monitors with a prior knowledge, and to pinpoint possible abnormal sources on the basis of Bayesian theory.

Process Control System Fault Diagnosis: A Bayesian Approach consolidates results developed by the authors, along with the fundamentals, and presents them in a systematic way. The book provides a comprehensive coverage of various Bayesian methods for control system fault diagnosis, along with a detailed tutorial. The book is useful for graduate students and researchers as a monograph and as a reference for state-of-the-art techniques in control system performance monitoring and fault diagnosis. Since several self-contained practical examples are included in the book, it also provides a place for practicing engineers to look for solutions to their daily monitoring and diagnosis problems.

 

Key features:

*             A comprehensive coverage of Bayesian Inference for control system fault diagnosis.

*             Theory and applications are self-contained.

*             Provides detailed algorithms and sample Matlab codes.

*             Theory is illustrated through benchmark simulation examples, pilot-scale experiments and industrial application.

 

Process Control System Fault Diagnosis: A Bayesian Approach is a comprehensive guide for graduate students, practicing engineers, and researchers who are interests in applying theory to practice.

Preface xiii Acknowledgements xvii List of Figures xix List of Tables xxiii Nomenclature xxv
Part I FUNDAMENTALS 1 Introduction 3
1.1 Motivational Illustrations 3
1.2 Previous Work 4
1.2.1 Diagnosis Techniques 4
1.2.2 Monitoring Techniques 7
1.3 Book Outline 12
1.3.1 Problem Overview and Illustrative Example 12
1.3.2 Overview of Proposed Work 12 References 16 2 Prerequisite Fundamentals 19
2.1 Introduction 19
2.2 Bayesian Inference and Parameter Estimation 19
2.2.1 Tutorial on Bayesian Inference 24
2.2.2 Tutorial on Bayesian Inference with Time Dependency 27
2.2.3 Bayesian Inference vs. Direct Inference 32
2.2.4 Tutorial on Bayesian Parameter Estimation 33
2.3 The EM Algorithm 38
2.4 Techniques for Ambiguous Modes 44
2.4.1 Tutorial on Î? Parameters in the Presence of Ambiguous Modes 46
2.4.2 Tutorial on Probabilities Using Î? Parameters 47
2.4.3 Dempster-Shafer Theory 48
2.5 Kernel Density Estimation 51
2.5.1 From Histograms to Kernel Density Estimates 52
2.5.2 Bandwidth Selection 54
2.5.3 Kernel Density Estimation Tutorial 55
2.6 Bootstrapping 56
2.6.1 Bootstrapping Tutorial 57
2.6.2 Smoothed Bootstrapping Tutorial 57
2.7 Notes and References 60 References 61 3 Bayesian Diagnosis 62
3.1 Introduction 62
3.2 Bayesian Approach for Control Loop Diagnosis 62
3.2.1 Mode M 62
3.2.2 Evidence E 63
3.2.3 Historical Dataset D 64
3.3 Likelihood Estimation 65
3.4 Notes and References 67 References 67 4 Accounting for Autodependent Modes and Evidence 68
4.1 Introduction 68
4.2 Temporally Dependent Evidence 68
4.2.1 Evidence Dependence 68
4.2.2 Estimation of Evidence-transition Probability 70
4.2.3 Issues in Estimating Dependence in Evidence 74
4.3 Temporally Dependent Modes 75
4.3.1 Mode Dependence 75
4.3.2 Estimating Mode Transition Probabilities 77
4.4 Dependent Modes and Evidence 81
4.5 Notes and References 82 References 82 5 Accounting for Incomplete Discrete Evidence 83
5.1 Introduction 83
5.2 The Incomplete Evidence Problem 83
5.3 Diagnosis with Incomplete Evidence 85
5.3.1 Single Missing Pattern Problem 86
5.3.2 Multiple Missing Pattern Problem 92
5.3.3 Limitations of the Single and Multiple Missing Pattern Solutions 93
5.4 Notes and References 94 References 94 6 Accounting for Ambiguous Modes: A Bayesian Approach 96
6.1 Introduction 96
6.2 Parametrization of Likelihood Given Ambiguous Modes 96
6.2.1 Interpretation of Proportion Parameters 96
6.2.2 Parametrizing Likelihoods 97
6.2.3 Informed Estimates of Likelihoods 98
6.3 Fagin-Halpern Combination 99
6.4 Second-order Approximation 100
6.4.1 Consistency of Î? Parameters 101
6.4.2 Obtaining a Second-order Approximation 101
6.4.3 The Second-order Bayesian Combination Rule 103
6.5 Brief Comparison of Combination Methods 104
6.6 Applying the Second-order Rule Dynamically 105
6.6.1 Unambiguous Dynamic Solution 105
6.6.2 The Second-order Dynamic Solution 106
6.7 Making a Diagnosis 107
6.7.1 Simple Diagnosis 107
6.7.2 Ranged Diagnosis 107
6.7.3 Expected Value Diagnosis 107
6.8 Notes and References 111 References 111 7 Accounting for Ambiguous Modes: A Dempster-Shafer Approach 112
7.1 Introduction 112
7.2 Dempster-Shafer Theory 112
7.2.1 Basic Belief Assignments 112
7.2.2 Probability Boundaries 114
7.2.3 Dempster''s Rule of Combination 114
7.2.4 Short-cut Combination for Unambiguous Priors 115
7.3 Generalizing Dempster-Shafer Theory 116
7.3.1 Motivation: Difficulties with BBAs 117
7.3.2 Generalizing the BBA 119
7.3.3 Generalizing Dempster''s Rule 122
7.3.4 Short-cut Combination for Unambiguous Priors 123
7.4 Notes and References 124 References 125 8 Making Use of Continuous Evidence Through Kernel Density Estimation 126
8.1 Introduction 126
8.2 Performance: Continuous vs. Discrete Methods 127
8.2.1 Average False Negative Diagnosis Criterion 127
8.2.2 Performance of Discrete and Continuous Methods 129
8.3 Kernel Density Estimation 132
8.3.1 From Histograms to Kernel Density Estimates 132
8.3.2 Defining a Kernel Density Estimate 134
8.3.3 Bandwidth Selection Criterion 135
8.3.4 Bandwidth Selection Techniques 136
8.4 Dimension Reduction 137
8.4.1 Independence Assumptions 138
8.4.2 Principal and Independent Component Analysis 139
8.5 Missing Values 139
8.5.1 Kernel Density Regression 140
8.5.2 Applying Kernel Density Regression for a Solution 141
8.6 Dynamic Evidence 142
8.7 Notes and References 143 References 143 9 Accounting for Sparse Data Within a Mode 144
9.1 Introduction 144
9.2 Analytical Estimation of the Monitor Output Distribution Function 145
9.2.1 Control Performance Monitor 145
9.2.2 Process Model Monitor 146
9.2.3 Sensor Bias Monitor 148
9.3 Bootstrap Approach to Estimating Monitor Output Distribution Function 150
9.3.1 Valve Stiction Identification 150
9.3.2 The Bootstrap Method 153
9.3.3 Illustrative Example 156
9.3.4 Applications 160
9.4 Experimental Example 164
9.4.1 Process Description 164
9.4.2 Diagnostic Settings and Results 167
9.5 Notes and References 170 References 170 10 Accounting for Sparse Modes Within the Data 172
10.1 Introduction 172
10.2 Approaches and Algorithms 172
10.2.1 Approach for Component Diagnosis 173
10.2.2 Approach for Bootstrapping New Modes 176
10.3 Illustration 181
10.3.1 Component-based Diagnosis 184
10.3.2 Bootstrapping for Additional Modes 188
10.4 Application 194
10.4.1 Monitor Selection 195
10.4.2 Component Diagnosis 195
10.5 Notes and References 198 References 199
Part II APPLICATIONS 11 Introduction to Testbed Systems 203
11.1 Simulated System 203
11.1.1 Monitor Design 203
11.2 Bench-scale System 205
11.3 Industrial Scale System 207 References 207 12 Bayesian Diagnosis with Discrete Data 209
12.1 Introduction 209
12.2 Algorithm 210
12.3 Tutorial 213
12.4 Simulated Case 216
12.5 Bench-scale Case 217
12.6 Industrial-scale Case 219
12.7 Notes and References 220 References 220 13 Accounting for Autodependent Modes and Evidence 221
13.1 Introduction 221
13.2 Algorithms 222
13.2.1 Evidence Transition Probability 222
13.2.2 Mode Transition Probability 226
13.3 Tutorial 228
13.4 Notes and References 231 References 231 14 Accounting for Incomplete Discrete Evidence 232
14.1 Introduction 232
14.2 Algorithm 232
14.2.1 Single Missing Pattern Problem 232
14.2.2 Multiple Missing Pattern Problem 236
14.3 Tutorial 238
14.4 Simulated Case 241
14.5 Bench-scale Case 242
14.6 Industrial-scale Case 244
14.7 Notes and References 246 References 246 15 Accounting for Ambiguous Modes in Historical Data: A Bayesian Approach 247
15.1 Introduction 247
15.2 Algorithm 248
15.2.1 Formulating the Problem 248
15.2.2 Second-order Taylor Series Approximation of p(E M,Î?) 248
15.2.3 Second-order Bayesian Combination 250
15.2.4 Optional Step: Separating Monitors into Independent Groups 252
15.2.5 Grouping Methodology 253
15.3 Illustrative Example of Proposed Methodology 254
15.3.1 Introduction 254
15.3.2 Offline Step
1: Historical Data Collection 255
15.3.3 Offline Step
2: Mutual Information Criterion (Optional) 255
15.3.4 Offline Step
3: Calculate Reference Values 256
15.3.5 Online Step
1: Calculate Support 257
15.3.6 Online Step
2: Calculate Second-order Terms 258
15.3.7 Online Step
3: Perform Combinations 260
15.3.8 Online Step
4: Make a Diagnosis 262
15.4 Simulated Case 265
15.5 Bench-scale Case 268
15.6 Industrial-scale Case 269
15.7 Notes and References 270 References 271 16 Accounting for Ambiguous Modes in Historical Data: A Dempster-Shafer Approach 272
16.1 Introduction 272
16.2 Algorithm 272
16.2.1 Parametrized Likelihoods 272
16.2.2 Basic Belief Assignments 273
16.2.3 The Generalized Dempster''s Rule of Combination 275
16.3 Example of Proposed Methodology 276
16.3.1 Introduction 276
16.3.2 Offline Step
1: Historical Data Collection 277
16.3.3 Offline Step
2: Mutual Information Criterion (Optional) 277
16.3.4 Offline Step
3: Calculate Reference Value 278
16.3.5 Online Step
1: Calculate Support 279
16.3.6 Online Step
2: Calculate the GBBA 280
16.3.7 Online Step
3: Combine BBAs and Diagnose 283
16.4 Simulated Case 283
16.5 Bench-scale Case 284
16.6 Industrial System 286
16.7 Notes and References 287 References 287 17 Making use of Continuous Evidence through Kernel Density Estimation 288
17.1 Introduction 288
17.2 Algorithm 289
17.2.1 Kernel Density Estimation 289
17.2.2 Bandwidth Selection 289
17.2.3 Adaptive Bandwidths
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