49765 - Diagnostics and Control (Graduate Course)

Learning outcomes

The course, given in the third didactic cycle in the first year of the LS in Automation Engineering, aims at giving a systematic overview of the main available methodologies and of the technical norms that should be used to rationally overcome problems due to faults and malfunctioning affecting modern automatic systems.  

This problem is widely felt in different engineering area, from manufacturing systems to transportation systems, from chemical process industry to energy production industry, through automatic machineries and electromechanical systems in general.

The focus will be pointed on the idea that a solution to the problem is realized through a rational integration of HW redundancies with SW (model based) functions.

Course contents

Main concepts

Definitions and classification

Introduction to Fault Tolerance

Requirements

Safety critical system design

Requirements

Fault tolerance for components

Components degradation

Fault tolerance and control system

The IEC 61508 norm safety lifecycle

Qualitative Fault Analysis

Safety  in Process industry – Prof. Gigliola Spadoni

Safety and availability in railways – Ing. Cristian Vercilli

Principles of Fault Diagnosis

Consistency based diagnosis

Analytical redundancies diagnosis

State observers

Output observers

Parity equations

Parameter estimation

Residual evaluation

Safety in automotive – Prof. Carlo Rossi

Advanced techniques

Unknown input observers

Kalman Filter estimation

Nonlinear system diagnosis

Diagnosis for logical/discrete event systems

Diagnosis of electrical machines – Prof. Fiorenzo Filippetti

Readings/Bibliography

For slides, Progetto E-learning, biblioteca digitale della Facoltà di Ingegneria, Bologna:  http://elearning.ing.unibo.it/

Bibliography:

Blanke, M., Kinnaert, M., Lunze, J., Diagnosis and Fault-tolerant Control, Springer, ISBN 3-540-01056-4, 2003.

Patton, R.J., Frank, P.M., Clark, R.N., Issues of Fault Diagnosis for Dynamic Systems, Springer, ISBN 3-540-19968-3, 2000.

Isermann, R., Schwarz, R., Stolz, S., Fault-Tolerant drive-by-wire systems, IEEE Control Systems Magazine, October 2002.

Smith, D.J.. Simpson, K.G.L, Functional safety: A Straightforward Guide to Applying IEC 61508 and Related Standards, Elsevier, ISBN 0750662697, 2004.

Andrews, J.D., Moss, T.R., Reliability and Risk Assessment, Professional Engineering Publications, ISBN 1 86058 290 7, 2002.

Simani, S., Fantuzzi, C., Patton, R.J., Model-based Fault Diagnosis in Dynamic Systems using Identification Techniques, Springer, ISBN 1-85233-685-4, 2003.

Ding, S.X., Model-Based Fault Diagnosis Techniques: Design Schemes, Algorithms, and Tools, Springer, ISBN 3540763031, 2008.

Bonivento, C., On-line state estimation and indirect measurement in safeguards systems, in: Argentesi, F., Avenhaus, R. Franklin, M., Shipley, J.P., Mathematical and Statistical Methods in Nuclear Safeguards, Harwood Academic Publishers, ISBN 3-7186-0124-9, 1981.

Zhang, Q., Basseville, M., Benveniste, A., Fault detection and isolation in nonlinear dynamic systems: a combined input-output and local approach, Technical note n. 1074, IRISA-INRIA, www.irisa.fr, 1996.

Sampath, M., Sengupta, R., Lafortune, S., Sinnamohideen, K., Failure Diagnosis Using Discrete Event Models,  IEEE Trans. on Control Systems Technology, Vol. 4, No. 2, March, 1996, pp. 105-124.

Paoli, A., Lafortune, S., Safe diagnosability for fault-tolerant supervision of discrete-events systems, Automatica, Vol. 41, No. 8, August, 2005.

Proceedings of the Ph.D. School “Diagnostica e Controllo Tollerante ai Guasti di Sistemi Dinamici”,  15-17 Luglio 2004, Bertinoro, http://control.units.it/Bertinoro_2004, Coordinators: Edoardo Mosca e Thomas Parisini, Speakers: Giovanni Marro, Jakob Stoustrup, David Angeli, Claudio De Persis, Lorenzo Marconi, Thomas Parisini, Andrea Paoli, Eva Wu, Carlo Rossi

Teaching methods

Standard lessons. During exercise hours, students are encouraged to develop and discuss a risk assessment/diagnosis problem.

Assessment methods

The final exam consists mainly in a standard theoretical oral exam. It is also possible to present a discussion of proposed projects.

Office hours

See the website of Claudio Bonivento