Residual Function Design for Linear Multivariable Systems
| Authors: | Simani Silvio, Dipartimento di Ingegneria, Università of Ferrara, Italy
Diversi Roberto, DEIS, Università di Bologna, Italy |
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| Topic: | 6.4 Safeprocess |
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| Session: | Fault Detection and Isolation for Linear Systems |
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| Keywords: | Fault detection, linear multivariable systems, input--output polynomial models, parameter identification, Monte Carlo simulation. |
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Abstract
Classical model--based fault detection schemes for linear multivariable systems require the definition of suitable residual functions. This paper shows the possibility of identifying residual generators even when the system model is unknown, by following a black--box approach. The result is obtained by using canonical input--output polynomial forms which lead to characterise in a straightforward fashion the basis of the subspace described by all possible residual generators. The performance of the proposed identification method is tested by means of a Monte Carlo simulation.
