Generalization of a Correlation Method for Time-Delay Estimation with Application to a River Reach

Magalie Thomassin (1) , Thierry Bastogne (2) , Alain Richard (2) , Hugues Garnier (2)

1 LAG - Laboratoire d'automatique de Grenoble
2 CRAN - Centre de Recherche en Automatique de Nancy

This article addresses the problem of time-delay estimation in the specific case of structures with combined feedback/feedforward control. In the case of closed loop single-input/single-output systems, several methods have been developed in order to estimate the time-delay. In particular, this parameter may be determined thanks to a correlation analysis proposed by Zheng and Feng (1990). The purpose of this work is to generalize the latter approach to the case of feedback/feedforward systems (with two inputs: the control input and the measured disturbance). This is motivated by an application to a managed river reach in passive experimental conditions.

Mots clés: time-delay estimation; correlation functions; feedback loops; feedforward compensation; hydroelectric systems

Domaines: Autre

Magalie Thomassin, Thierry Bastogne, Alain Richard, Hugues Garnier. Generalization of a Correlation Method for Time-Delay Estimation with Application to a River Reach. 14th IFAC Symposium on System Identification, SYSID 2006, March, Mar 2006, Newcastle, Australia. pp.CDROM. ⟨hal-00086716⟩