Diagnosis and FTC by Prof. Blanke [pdf] - NTNU

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63 64 Design of Parity Equations (5.6.3) Analytic redundancy relation (or parity equations) are subgraphs of the structure graph. They are formed from unmatched constraints using the complete matchings of the unknown variables we make on the reduced structure graph of a system. SaTool - constraint editor input Measured Unknown Mogens Blanke – Spring 2006 Create constraints Constraints Mogens Blanke – Spring 2006 32
65 66 SaTool – A tool for Structural Analysis Features • Matlab ® based (version 7.0 or later) • Graphical representation of structure as a graph • Easy point and click manipulation of system structure • Matching by ranking • Backtracing – Recursive algorithm Matlab ® is a trademark of the Math Works Inc. USA. Results Mogens Blanke – Spring 2006 • Detectability – Which faults can be detected with the found parity relations • Isolability – Which faults can be isolated with the found parity relations • Parity relations – Which relations exists • Controllability – Can I reach the unknown variables from the input variables Mogens Blanke – Spring 2006 33
Page 1 and 2: 1 2 Fault-tolerant Control Lecturer
Page 3 and 4: 5 6 Structure of Plant + Controller
Page 5 and 6: 9 10 Fault-tolerant Control Fault-t
Page 7 and 8: 13 14 Handling of fault - reconfigu
Page 9 and 10: 17 18 Model-matching state-feedback
Page 11 and 12: 21 22 Handling of faults - 2 • Ac
Page 13 and 14: 25 26 Properties of possible archit
Page 15 and 16: 29 30 Diagnosis and Fault-tolerant
Page 17 and 18: 33 34 Safety versus fault-tolerance
Page 19 and 20: 37 38 Models of dynamical systems L
Page 21 and 22: 41 42 Example on requirements to di
Page 23 and 24: 45 46 Digraph for linear system Exa
Page 25 and 26: 49 50 Example 5.3: tank system F =
Page 27 and 28: 53 54 Example 5.3: controlled tank
Page 29 and 30: 57 58 Non invertible constraints =
Page 31: 61 62 Differential and integral con
Page 35 and 36: 69 70 SaTool - A tool for Structura
Page 37 and 38: 73 74 Constraints - forces from act
Page 39 and 40: 77 78 The Constraint Editor in SaTo
Page 41 and 42: 81 82 Parity relations (normal oper
Page 43 and 44: 85 86 Fault means violation of a co
Page 45 and 46: 89 90 Maritime uses - Naval and Off

Diagnosis and FTC by Prof. Blanke [pdf] - NTNU

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