Abstract
In the paper the problem of detecting and isolating multiple faults for nonlinear systems is considered. A strategy of state filtering is derived in order to detect and isolate multiple faults which appear simultaneously or sequentially in a discrete time nonlinear systems with unknown inputs. For the considered system for which a fault isolation condition is fulfilled the proposed method can isolate p simultaneous faults with at least p+q output measurements, where q is the number of unknown inputs or disturbances. A reduced output residual vector of dimension p+q is generated and the elements of this vector are decoupled in a way that each element of the vector is associated with only one fault or unmeasured input.
| Original language | English |
|---|---|
| Number of pages | 6 |
| Publication status | Published - Jul 2003 |
| Event | Safe Processes 2003 - Washington, United States Duration: 1 Jul 2003 → … |
Conference
| Conference | Safe Processes 2003 |
|---|---|
| Country | United States |
| City | Washington |
| Period | 1/07/03 → … |
Keywords
- filter
- detecting
- isolating faults
- nonlinear system
- analytical redundancy
- unbiased
- directional residuals
- dynamic observers
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Cite this
Giovanini, L., & Dutka, A. (2003). Filter for detecting and isolating faults for a nonlinear system. Paper presented at Safe Processes 2003, Washington, United States.