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Analytical redundancy and the design of robust failure detection systems

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2 Author(s)
Chow, E. ; Schlumberger-Doll Research, Ridgefield, CT, USA ; Willsky, A.S.

The failure detection and identification (FDI) process is viewed as consisting of two stages: residual generation and decision making. It is argued that a robust FDI system can be achieved by designing a robust residual generation process. Analytical redundancy, the basis for residual generation, is characterized in terms of a parity space. Using the concept of parity relations, residuals can be generated in a number of ways and the design of a robust residual generation process can be formulated as a minimax optimization problem. An example is included to illustrate this design methodology.

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Automatic Control, IEEE Transactions on  (Volume:29 ,  Issue: 7 )