An Approach of Online Hydraulic Simulation for Water Supply Network

This paper exposes our online approach to real-time hydraulic simulation that could hardly be achieved through traditional optimization methods. The proposed approach includes a distribution model of SCADA nodes and an estimation algorithm of instantaneous node water flow. The SCADA model is used to analyze a complex water supply network into simple computation units, and the estimation algorithm is used to adjust the instantaneous distribution of node water flow dynamically according to the measured flow and pressure of SCADA nodes. As a result, it becomes possible to perform real-time calculation of the hydraulic parameters with hydraulic formulas one by one. The proposed approach can satisfy the hard real-time requirement of state estimation of large water distribution networks for its high performance on efficiency, rationality and economy. Therefore, it can be easily integrated into online GIS software for management purpose of water distribution system such as planning, reforming, dispatching, online monitoring, safety detecting and so on.