Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

A Detection and Isolation Scheme for Nonlinear Systems with a Actuator and Sensor Faults

비선형 시스템의 액츄에이터 고장과 센서 고장을 위한 감지 및 분리 기법

  • Han, Byung-Jo (Dept. of Elec. Elec. Con. & Inst. Eng. Hanyang Univ.) ;
  • Hwang, Young-Ho (Dept. of Elec. Elec. Con. & Inst. Eng. Hanyang Univ.) ;
  • Kim, Hong-Pil (Sch. of Com. Con. Elec. Eng. Kyungil Univ.) ;
  • Yang, Hai-Won (Dept. of Elec. Elec. Con. & Inst. Eng. Hanyang Univ.)
  • 한병조 (한양대학교 전자전기제어계측공학과) ;
  • 황영호 (한양대학교 전자전기제어계측공학과) ;
  • 김홍필 (경일대학교 컴퓨터제어.전기공학부) ;
  • 양해원 (한양대학교 전자전기제어계측공학과)
  • Published : 2007.07.18
Download PDF
⟨ Previous Next ⟩

Abstract

This paper presents a fault detection and isolation(FDI) scheme for a nonlinear systems with a actuator and sensor faults. A residual generator based on the observer model generate the information for a fault detection. The proposed fault estimators are activated for a fault isolation and applied to estimate the time-varying lumped faults(model uncertainty + fault). but a fault estimator error dose not converge to zero since the derivative of lumped fault is not zero. Then the fuzzy neural network(FNN) is used to estimate the fault estimator error. Simulation results are presented to illustrate the effectiveness and the applicability of the approaches proposed.

Keywords