Research On Optimal Operation Of Water Supply By Multistage Pumping Stations In Jiaokou

Abstract: The necessity to study the model of optimal operation of water supply by multistage pumping stations are dissertated in Jiaokou, which based on the study of analyzing present condition of water supply in Jiaokou District and combined with the strategic assumption of sustainable development of Jiaokou and the development trends in optimal operation by multistage pumping stations.Carries on the overall summary of the operation model of pumping stations at present of our country at first, and manages the dividing area to multistage pumping stations water supply system in Jiaokou according to its demand, defining the water supply relation of the pumping stations at all levels. Then this thesis starts system analysis, which is the basic phase of modeling, completes exhaustive analysis on the flow of the forecast volume of water available for irrigation, the flow of the scheduling of water utilization and distribution, and the flow of the operation of pumping station units, which are correlative with water supply. At the same time, according to the analysis of multistage pumping stations water supply data characteristics, probes into systematic goal, user stipulations, function stipulations and system integration issue of DSS, which is optimal operation of multistage pumping stations based on GIS.Finally, according to Jiaokou's management demand and structure relation of pumping stations network, The three layers mathematical model of decomposion -Coordination and decomposion-aggregation for the large scale system is set up and the water resources optimization allocation and the optimum operation tactics of pumping units is provided in different water supply volume of trench's head. In addition, to build the model of optimum pumping head of pump combined with pumping stations of northtrunk trench with both pumping head of pump high and the pool regulated and stored and to provide the optimum operation tactics of pumping units.In studying the models, the importance of system analysis is emphasized fully, the models have an applying value, and also offer a good research idea about optimal operation of multistage pumping station for other areas to refer.