On-line power plant signal validation technique utilizing parity-space representation and analytic redundancy. Final report. [PWR]

Technical Report · Sun Nov 01 00:00:00 EST 1981

OSTI ID:5817738

Deckert, J C; Fisher, J L; Laning, D B; Ray, A

In this study a technique utilizing parity-space representation (an efficient method for finding a consistent subset of redundant measurements) and analytic redundancy (relationships among dissimilar variables) is designed for use in a real-time digital-computer-based system to isolate sensor and non-sensor component failures in the steam generator and feedwater subsystem of a reference nuclear power plant. The developed method differs substantially from global approaches requiring high-dimensional models. By employing previously validated variable estimates and relying upon physically adjacent information for fault isolation, inherently simple models can be used. Thus the developed method is easily segmented in a plant-wide application and is ideally suited to parallel computer processing.

• Research Organization: Combustion Engineering, Inc., Windsor, CT (USA); Draper (Charles Stark) Lab., Inc., Cambridge, MA (USA)
• OSTI ID: 5817738
• Report Number(s): EPRI-NP-2110; ON: DE82901314; TRN: 82-004832
• Country of Publication: United States
• Language: English

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