73017 - Diagnosis And Control M

Learning outcomes

This course 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

Introduction to dependability and RAMS;

Reliability and Availability;

- Main definitions and concepts;

- Non state space methods;

- State space methods;

Functional Safety;

- Safety critical systems;

- Safety life cycle;

- The IEC61508 standard;

- SIL levels;

- Fault Analysis techniques (HAZOP, FMEA, FTA)

- Layer of Protection Analysis (LOPA);

- The ALARP philosophy;

Model Based Fault Detection;

- Basics on Fault Detection (FD);

- Observer based FD;

- Unknown Input Observers (UIO);

- Kalman Filters;

- Parity Space FD;

- Least Squares FD;

- Statistical residual evaluation (chi-square test, sequential probability ratio test);

- Adaptive thresholds;

- Fault Isolation architectures;

- Qualitative approaches (AI methods);

- High level FDI (DES methods);

Fault Tolerance;

- Fault Tolerance by means of redundancy;

- Fault Tolerant control;

Lectures from companies;

Readings/Bibliography

Reliability Engineering

[1] A. Birolini, Reliability Engineering: Theory and Practice, Springer, ISBN 9783642149528, 2010.   

Fault Analysis
 
[2] J.D. Andrews, T.R. Moss, Reliability and Risk Assessment, Professional Engineering Publications, ISBN 1860582907, 2002.    

Functional Safety  
[3] D.J. Smith, K.G.L. Simpson, Safety Critical Systems Handbook: a straightforward guide to functional safety, IEC 61508 (2010 edition) and related standards, including process IEC 61511 and machinery IEC 62061 and ISO 13849, Elsevier Science, ISBN 9780080967820, 2010.    

Model Based FD  
[4] R.J. Patton, P.M. Frank, R.N. Clark, Issues of Fault Diagnosis for Dynamic Systems, Springer, ISBN 3540199683, 2000.
  
[5] J. Chen, R.J. Patton, Robust Model-Based Fault Diagnosis for Dynamic Systems, Kluwer Academic Publishers, ISBN 0792382595, 1999. 

Fault Tolerance  
[6] M. Blanke, M. Kinnaert, J. Lunze, Diagnosis and Fault-tolerant Control, Springer, ISBN 3540010564, 2003.  
[7] R. Isermann, Fault-Diagnosis Systems: An Introduction from Fault Detection to Fault Tolerance, Springer, ISBN 3540241124, 2006.

Teaching methods

Face to face lectures, students involvement through class discussions, lectures from key people from companies.

Assessment methods

Final exam including theoretical questions and simple exercises.

Office hours

See the website of Andrea Paoli