With increasing demands for efficiency and product quality plus progress
in the integration of automatic control systems in high-cost mechatronic
and safety-critical processes, the field of supervision (or monitoring),
fault detection and fault diagnosis plays an important role.
The book gives an introduction into advanced methods of fault detection
and diagnosis (FDD). After definitions of important terms, it considers
the reliability, availability, safety and systems integrity of technical
processes. Then fault-detection methods for single signals without
models such as limit and trend checking and with harmonic and stochastic
models, such as Fourier analysis, correlation and wavelets are treated.
This is followed by fault detection with process models using the
relationships between signals such as parameter estimation, parity
equations, observers and principal component analysis. The treated
fault-diagnosis methods include classification methods from Bayes
classification to neural networks with decision trees and inference
methods from approximate reasoning with fuzzy logic to hybrid
fuzzy-neuro systems.
Several practical examples for fault detection and diagnosis of DC motor
drives, a centrifugal pump, automotive suspension and tire demonstrate
applications.