METHOD FOR MINIMIZING FALSE ALARM IN MODEL-BASED FAULT DETECTION

摘要

A method for minimizing mis-detection in model-based fault detection is provided to minimize mis-detection by varying residual size and residual generating time length according to control circumstances when detecting faults by comparing a plurality of model outputs with actual system outputs. A method for minimizing mis-detection in model-based fault detection comprises: detecting faults by varying residual size and residual generating time length according to control or operating circumstances of the system when detecting faults by comparing a plurality of model outputs with actual system outputs; and increasing a threshold size of a residual if the system is under control or operation, and decreasing the threshold size of the residual if the system is not under control or operation.