Supervisory control of river flood: network modeling with varying time delay

Abstract : Food phenomena become an usual phenomenon occurring in the world and causing serious human and material damage. One way to protect urban zones from river floods is to equipped river with flood control area used as reservoirs in order to reduce the velocity of water and to attenuate the flood wave. The work presented in this paper concerns the supervisory control of such an equipped river. The supervisory scheme consists in four blocks connected to the river process: a Supervisory Control and Data Acquisition block, a Dynamic Parameterization block, a Diagnosis-Decision-Correction block and a Management Objectives and Constraints Generation block. The proposed method is based on a dynamic method combining a reduced transportation network and a temporized matrix from which the water volumes to be stored or released in time are calculated. It makes possible the water storage and release adapted to each river flood scenario, and preservation of agriculture in these floodplains. It takes into account the variation of the time delay with the flow without any modification in the structure of the network.