Predictive optimal control of sewer networks using CORAL tool: application to Riera Blanca catchment in Barcelona

摘要

This paper deals with the global control of the Riera Blanca catchment in the Barcelona sewernnetwork using a predictive optimal control approach. This catchment has been modelled usingna conceptual modelling approach based on decomposing the catchments in subcatchments andnrepresenting them as virtual tanks. This conceptual modelling approach allows real-time modelncalibration and control of the sewer network. The global control problem of the Riera Blancancatchment is solved using a optimal/predictive control algorithm. To implement the predictivenoptimal control of the Riera Blanca catchment, a software tool named CORAL is used. The on-linencontrol is simulated by interfacing CORAL with a high fidelity simulator of sewer networksn(MOUSE). CORAL interchanges readings from the limnimeters and gate commands with MOUSE asnif it was connected with the real SCADA system. Finally, the global control results obtained usingnthe predictive optimal control are presented and compared against the results obtained usingncurrent local control system. The results obtained using the global control are very satisfactoryncompared to those obtained using the local control.