Multi objective Calibration of Hydraulic Model in Water Distribution Network Based on Sensitivity Analysis

Abstract:

Urban water supply network is of critical infrastructure. In the process of water distribution network planning, operation management and optimization scheduling, it needs to understand the hydraulic and water quality status of water distribution network comprehensively. The establishment of water distribution network hydraulic model is the most effective method. In this study, Sobol’ sensitivity analysis method is selected to analyze the parameter sensitivity in the model, then a real water supply network is taken as an example for automatic calibration. The results show that with Sobol’ sensitivity analysis method and NSGA Ⅱ algorithm, calibrating the pipe friction factors which have higher sensitivity, can reduce the number of decision variables and calibrating time.