Robust fault detection using interval LPV parity equations: Application to an open-flow canal

Abstract

In this paper, robust fault detection using a parity equation passive robust approach based on generating an adaptive threshold considering that the system to be monitored can be described by an interval linear parameter varying (LPV) model with variable transport delay is proposed. This approach allows to consider parameters and associated uncertainty intervals dependence on the operating point. Additionally, a parameter estimation algorithm for interval LPV models with variable transport delay is presented. Finally, a single reach open flow canal, based on a real canal (the Lunax Gallery), has been used to assess the validity of the proposed approach.