Sensor Placement for Fault Isolation in Linear Differential-Algebraic Systems
An algorithm is proposed for computing which sensor additions that
make a diagnosis requirement specification regarding fault
detectability and isolability attainable for a given linear
differential-algebraic model. Restrictions on possible sensor
locations can be given and if the diagnosis specification is not
attainable with any available sensor addition, the algorithm provides
the solutions that maximize specification fulfillment. Previous
approaches with similar objectives have been structural, but since
this algorithm is analytical, it can handle models where structural
approaches fail. A Mathematica implementation of the algorithm can be
downloaded from http://www.fs.isy.liu.se/Software/LinSensPlaceTool/.
Mattias Krysander, Erik Frisk and Jan Åslund
IFAC World Congress,
2008
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