바이어스 추정기에 의한 탱크 레벨시스템 고장검출 및 진단

Fault detection and diagnosis for a tank level system by bias estimator

This paper deals with designing a real-time fault and accommodation system. The LQG controller is adopted in the normal state and the output of LQG controller is corrected using Separated Bias Estimator in the faulty state. The proposed scheme has been applied to the two-tank control system and showed satisfactory performance.