Publication

Limnimeter and rain gauge FDI in sewer networks using an interval parity equations based detection approach and an enhanced isolation scheme

Journal Article (2013)

Journal

Control Engineering Practice

Pages

146-170

Volume

21

Number

2

Doc link

http://dx.doi.org/10.1016/j.conengprac.2012.09.015

File

Download the digital copy of the doc pdf document

Abstract

In this paper, a methodology for limnimeter and rain-gauge fault detection and isolation (FDI) in sewer networks is presented. The proposed model based FDI approach uses interval parity equations for fault detection in order to enhance robustness against modelling errors and noise. They both are assumed unknown but bounded, following the so-called interval (or set-membership) approach. On the other hand, fault isolation relies on an algorithm that reasons using several fault signature matrices that store additional information to the typical binary one used in standard FDI approaches. More precisely, the considered fault signature matrices contain information about residual fault sign/sensitivity and time/order of activation. The paper also proposes an identification procedure to obtain the interval models used in fault detection that delivers the nominal model plus parameter uncertainty is proposed. To exemplify the proposed FDI methodology, a case study based on the Barcelona sewer network is used.

Categories

control system analysis computing.

Author keywords

fault detection, fault isolation, sewer networks, robust methods

Scientific reference

V. Puig and J. Blesa. Limnimeter and rain gauge FDI in sewer networks using an interval parity equations based detection approach and an enhanced isolation scheme. Control Engineering Practice, 21(2): 146-170, 2013.