Title :
Dynamic fault detection approaches
Author :
Stroph, R. ; Clarke, T.
Author_Institution :
Dept. of Electron., York Univ., UK
Abstract :
Several dynamic acceptance test approaches, applicable to any linear, causal, time-invariant control system, are developed. The acceptance tests perform a reasonableness check on controller outputs, based upon critical control theory. The dynamic approach checks the control system online and in run-time and reacts to controller demand changes as the control system operates. Theory is presented to enable one to place dynamic magnitude and rate bounds on controller output signals in the time domain. Practical implementation of the acceptance tests into realistic control systems is discussed leading to verification of a highly successful fault detection technique
Keywords :
digital control; fault diagnosis; fault tolerance; linear systems; safety-critical software; controller demand changes; controller outputs; critical control theory; dynamic fault detection; dynamic magnitude bounds; linear causal time-invariant control system; rate bounds; reasonableness check; Control systems; Control theory; Fault detection; Fault tolerant systems; Performance evaluation; Runtime; Safety; System testing; Transfer functions; Upper bound;
Conference_Titel :
American Control Conference, 1999. Proceedings of the 1999
Conference_Location :
San Diego, CA
Print_ISBN :
0-7803-4990-3
DOI :
10.1109/ACC.1999.782904
