FAULT TOLERANT SYSTEM DESIGN BASED FUZZY OBSERVER

摘要

Crude oil in the pipeline evaporation is one of hidden safety trouble for directly-fired kiln, which maybe be caused by severe flame deflecting. According to redundancy between technology parameters of furnace, redundancy select majority strategy was proposed, and used as the inference rule of fuzzy observer, the output of the fuzzy observer was tendency of furnace working condition, then it compared with deviation of other local input parameters to diagnose effectively fire deflect and sensors fault. Thus safety and fault-tolerant capacity of furnace are improved, and stronger robustness is also obtained.