원전 적용을 위한 최적 센서 위치를 가진 고장진단 시스템의 개발

The Development of Fault Diagnosis System for Nuclear Power Plants with Optimal Sensor Location

A detection filter assigns a specific direction to the response with respect to each fault, by which it can detect the occurrence of the several faults. The separability of a detection filter can be determined by the orthogonality among these directions. In this paper, we define the separability of a detection filter as the orthogonality of the directions in output space, and present it mathematically by using conditions number. An algorithm to determine the optimal sensor gain to maximize separability is proposed and applied to the PWR nuclear reactor model.