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问题二:年调节水库调度问题某灌溉为主的年调节水库,兴利库容为2000万米~3.如简化计,按水文年度将全年分为四个阶段(见表7),在一个阶段内输水洞最大可能放水量为2000万米~3,年初年末水库有效蓄水量为0.各阶段入库径汛量I,放水量d,水库蓄水量S 均按间隔500万米~3进行离散.各阶段水库放水量d 所产生之灌溉净效益r 见表8.若年初能预报出全年各阶段入库径流量,如表7所示,问水库在各阶段应如何放水,才能使全年净效益最大?
Question 2: Annual regulation of reservoir scheduling problems An irrigation-oriented annual regulation of reservoirs, Xing Lee storage capacity of 20 million meters to 3. Such as simplification, according to the hydrological year will be divided into four phases throughout the year (see Table 7), in a During the stage, the maximum possible discharge of water conveyance holes is 20 million m ~ 3, and the effective water storage capacity of the reservoir at the beginning of the year is 0. The flood storage amount I, water discharge d and reservoir water storage S of each stage are divided by 5 million meters ~ 3. For each stage of the reservoir discharge d net irrigation benefits produced by r see Table 8. If the beginning of the year can be predicted out of the reservoir runoff throughout the year, as shown in Table 7, asked the reservoir how to drain at all stages In order to maximize the annual net benefit?