Distributed Fault Detection of Nonlinear Process Systems with Senor Failures. Issue 2 (2020)

• Record Type: Journal Article
• Authors: Zhang, Langwen; Xie, Wei; Lian, Yindong
• Is Part Of: IFAC-PapersOnLine. Volume 53:Issue 2(2020)
• Page Start: 2544
• Page End: 2549
• Publication Date: 2020
• Subjects: Distributed fault detection -- Distributed extended Kalman Filter -- Sensor faults -- Completely stirred tank reactor; Automatic control -- Periodicals; 629.805
• DOI: 10.1016/j.ifacol.2020.12.294
• Languages: English
• ISSNs: 2405-8963

Abstract

Abstract: A distributed fault detection scheme is presented in this work to deal with the senor failures in a nonlinear process system. Firstly, a residual generator is derived, in which the fault signal is generated by introducing a residual signal. Then, a distributed extended Kalman Filter (EKF) is designed to estimate the unmeasurable system states. Finally, the proposed distributed EKF is used for the fault detection and isolation in a distributed framework. By applying the distributed fault detection scheme to a completely stirred tank reactor process, it is shown that the proposed scheme has ability to monitor the sensor faults automatically.