LPT-2001-13 [BibTeX]
F Flehmig, Wolfgang Marquardt:
Monitoring trends of unmeasurable process quantities
4th IFAC Workshop on On-line Fault Detection and Supervision in the Chemical Process Industries, CHEMFAS–4, Jejudo Island, Korea, 7-8.6.2001, 115-120
Abstract:
In this paper, a methodology is suggested for analyzing the behavior of a chemical process
with respect to the extent in which trends in unmeasurable process quantities can be identified
through recognition of trends in measurable process quantities. The analysis is based on a linear
approximation of the nonlinear dynamics. It is shown how the suggested methodology can be employed in
order to design a trend monitoring system for the task of inferring trends in unmeasurable process
quantities from measurement trends. One key question for the successful design of such a system is the selection
of appropriate
measurements for which trend monitoring is performed on-line.
Keywords:
Process monitoring, trend recognition.
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