基于需水过程线的多级泵站扬水灌区供需水量优化调度.

In order to improve the incongruity issue（in the time dimension） of water supply and demand of Hongsibu water pumping system. Taking the water demand process line and the design flow line of pumping station as the comparison object, this paper analyzed the difference between the demand flow and the design flow of pumping station caused by factors such as the irrigation area, the proportion of efficient water-saving area and irrigation quota（fixed value） at different time periods in the pumping irrigation area, and built the optimization regulation model of water supply flow and irrigation demand flow of pumping station in the multi-stage pumping system of Hongshibu. Based on the water demand process line multi-stage pumping station water supply and demand optimization scheduling model, including flow balance model, water demand process line model and flow regulation model, the simulation analysis of four working conditions in Hongshibu irrigation area show that when the high-efficiency water-saving area accounts for 60%, as the irrigation area increases from 6.02×104 hm² to 6.77×104 hm², the regulated flow in the controlled irrigation area of Hongsan Pumping Station gradually increases, that is, the regulated storage capacity increases from 1.47 ×106 m³ to 8.49×106 m³, while the regulated storage scale of the other three pumping stations basically remains unchanged. When the high-efficiency water-saving area accounts for 80%, there is basically no need for regulation and storage at Hongyi Pumping Station and Hongsan Pumping Station, while the regulated flow at Hongsi Pumping Station and Hongwu Pumping Station maintains a constant value, and the regulation and storage scales are 3.08×106 m³ and 0.47 ×106 m³ respectively. The water supply and demand optimization scheduling model of multi-stage pumping station based on water demand process line is simple to build and apply. The model can better reflect the water distribution relationship between the construction of multi-stage pumping station and the branch lines of pumping station, and the adjustment period and allocation flow are flexible, which can be suitable for the water supply system of multi-stage pumping station with different storage demand. [ABSTRACT FROM AUTHOR]