Residual Generator Design for Non-linear, Polynomial Systems - A Gröbner Basis Approach
Design and analysis of residual generators for polynomial systems is
considered. This paper presents a systematic procedure, given an input-output
description of system dynamics, to design residual generators for fault
diagnosis. The design procedure is based on standard elimination theory. The
design procedure is applied in a simulation study on a non-linear system, where
it is showed how multiplicative and additive faults are detected and
isolated. The example also shows how a fault detectability/isolability analysis
can be made during the design.
Erik Frisk
IFAC Fault Detection, Supervision and Safety for Technical Processes,
2000
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