Conference Agenda
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Daily Overview |
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SES 2-4-3: RTC 2 Location: HSB2 Session Chair: Manfred Schütze Session Chair: Sabuj Chandra Biswas | |
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3:45pm - 4:00pm
Methodology for Choosing Optimal Parameters for Real-time MPC in Urban Drainage Systems 1: University of Luxembourg, Luxembourg; 2: RTC4Water The main goal of Urban Drainage Systems (UDS) is to properly handle rainwater, surface runoff, and sewage, minimising overflow and other health hazards. Combined Sewer Overflow (CSO) events are a major challenge in UDS management, and many software techniques are used to reduce overflow events, for example Model Predictive Control (MPC). By applying an optimisation routine using a model of the UDS, MPC can reduce CSO events. However, for this method to be effective, it requires the selection of several parameters, which is typically done through trial-and-error. This paper proposes a methodology to identify the MPC’s parameters by using a Sensitivity Analysis (SA) combined with a Genetic Algorithm (GA). The methodology consists of identifying regions of effectiveness of the parameters for desired outputs using the SA and applying the knowledge into a GA which finds the best parameters. The results showed that SA reduced the computational cost for the GA while providing an excellent combination of parameters. The novel methodology is applied to a simple network with 3 CSO tanks, reducing the system’s total overflow over a 1-year period by 14% compared to when MPC is not implemented and 56% compared to a MPC tuned using trial-and-error. | |