Filter for detecting and isolating faults for a nonlinear system

L. Giovanini, A. Dutka

Research output: Contribution to conference › Paper

36 Downloads (Pure)

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 languageEnglish
Number of pages6
Publication statusPublished - Jul 2003
EventSafe Processes 2003 - Washington, United States
Duration: 1 Jul 2003 → …

Conference

ConferenceSafe Processes 2003
CountryUnited States
CityWashington
Period1/07/03 → …

Fingerprint

Nonlinear systems

Keywords

  • filter
  • detecting
  • isolating faults
  • nonlinear system
  • analytical redundancy
  • unbiased
  • directional residuals
  • dynamic observers

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.
Giovanini, L. ; Dutka, A. / Filter for detecting and isolating faults for a nonlinear system. Paper presented at Safe Processes 2003, Washington, United States.6 p.
@conference{4e7c7d1d38f94a049b6ad99d611c27c9,
title = "Filter for detecting and isolating faults for a nonlinear system",
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.",
keywords = "filter, detecting, isolating faults, nonlinear system, analytical redundancy, unbiased, directional residuals, dynamic observers",
author = "L. Giovanini and A. Dutka",
year = "2003",
month = "7",
language = "English",
note = "Safe Processes 2003 ; Conference date: 01-07-2003",

}

Giovanini, L & Dutka, A 2003, 'Filter for detecting and isolating faults for a nonlinear system' Paper presented at Safe Processes 2003, Washington, United States, 1/07/03, .

Filter for detecting and isolating faults for a nonlinear system. / Giovanini, L.; Dutka, A.

2003. Paper presented at Safe Processes 2003, Washington, United States.

Research output: Contribution to conference › Paper

TY - CONF

T1 - Filter for detecting and isolating faults for a nonlinear system

AU - Giovanini, L.

AU - Dutka, A.

PY - 2003/7

Y1 - 2003/7

N2 - 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.

AB - 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.

KW - filter

KW - detecting

KW - isolating faults

KW - nonlinear system

KW - analytical redundancy

KW - unbiased

KW - directional residuals

KW - dynamic observers

UR - http://fich.unl.edu.ar/sinc/publications/2003/GD03a

M3 - Paper

ER -

Giovanini L, Dutka A. Filter for detecting and isolating faults for a nonlinear system. 2003. Paper presented at Safe Processes 2003, Washington, United States.

Access to Document