An Integration Methodology and Dynamic Diagnosis Algorithm for Online Fault Diagnosis of NPP

Fault diagnosis is one of the important technologies that can improve the operational safety and reliability of Nuclear Power Plant (NPP). However few comprehensive fault diagnosis system applied in practice are available in NPP. An integration methodology and dynamic diagnosis algorithm are developed. First of all, the fault diagnosis problem of NPP is formulized. Then Nuclear Power Plant is decomposed into some small subsystems. On that base, a new dynamic diagnosis algorithm for online isolating the single fault in NPP is proposed and proved. This research provides one ideal solution for resolving the comprehensive fault diagnosis problem of NPP.