Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 1998.07b
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- Pages.417-419
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- 1998
Fault Isolation for a Diesel Engine Actuator
디젤엔진 위치서보시스템을 위한 고장 식별
- Park, Tae-Geon (Department of Electrical Engineering, Dankook University) ;
- Hur, Hak-Bom (Department of Control and Measurement, Chonan National Technological College) ;
- Lee, Kee-Sang (Department of Electrical Engineering, Dankook University)
- Published : 1998.07.20
Abstract
In a large diesel engine actuator position servo system, it is impossible to isolate an actuator fault from a load torque with conventional fault detection isolation (FDI) schemes because they are propagated through a channel. This paper deals with a parity equation based residual generation to isolate them in the system. The actuator fault is modelled by a multiplicative type fault that can be characterized as discrepancies between the nominal and actual plant parameters, whereas the load torque is modelled by an additive disturbance. The transformation implemented in the residual generator should be determined on-line to achieve the isolation. Simulation studies show the practical applicability of the FDI scheme.
Keywords