A Fault Detection Approach using both Control and Output Error Signals in Frequency Domain
This paper is to explore further results regarding Total Fault Information-based Residual (ToMFIR) approach to fault detection in dynamic systems. The TomFIR contains the essential fault information and remains unaffected by control actions in a closed-loop system. It is composed of control input residual and output error residual. The TomFIR is formulated in frequency domain. More importantly, the ToMFIR is able to detect faults/failures resulting from control-used computer. Currently, all of existing fault-detection schemes cannot achieve the same task at all. A practical DC motor example, with a PID controller, is used to demonstrate the effectiveness of the ToMFIR-based fault detection. Comparison with standard observer-based technique is also provided.
Fault detection Total measurable fault information residual output residuals controller residuals frequency domain.
Chih-Ping Yeh Han-Long Yang Wen Chen
Division of Engineering Technology at Wayne State University, Detroit, MI, USA, 48202. Department of Aftertreatment at EATON, Southfield,MI, USA, 48076.
国际会议
青岛
英文
341-344
2010-07-15（万方平台首次上网日期，不代表论文的发表时间）