Title :
Diagnosis of Faults in Process Instrumentation
Author :
Park, S.W. ; Himmelblau, D.M.
Author_Institution :
Department of Chemical Engineering, The University of Texas at Austin, Austin, Texas 78712
Abstract :
If the fault modes of a process instrumentation system can be related to the coefficients in the mathematical model of the system, then isolation of causes of system malfunction may be possible. We describe a procedure for fault diagnosability in the design of instrumentation and indicate the circumstances under which complete diagnosis is possible, namely that the model parameters are uniquely (globally) identifiable. An example of a feedback control system is used to illustrate the basic concepts.
Keywords :
Chemical engineering; Continuous time systems; Equations; Fault detection; Fault diagnosis; Feedback control; Instruments; Mathematical model; State estimation; Testing;
Conference_Titel :
American Control Conference, 1982
Conference_Location :
Arlington, VA, USA
