Actuator fault detection on a process control experimental system using combined observers

Abstract

This paper is concerned with the actuator fault detection problem for a process control experimental system using combined observers. That is, a fault detection system is designed for a water level control valve of a process experimental system by using a disturbance observer. Moreover, for the process experimental system with uncertainties, an adaptive observer using an unknown parameter identification mechanism combining with a disturbance observer is proposed to deal with the actuator fault detection problem. The effectiveness of the proposed method is confirmed by experimental results.

Keywords

fault detection disturbance observer adaptive observer identification mechanism

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