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繪制水庫調度曲綫时,常常要由水庫中某一时段之后的水位推求某一时段之前的水位?饩稣庖粏柼馐?用馬斯契茲基圖解法比較方便,但它的缺点是需要进行試算。繪水庫基本調度曲綫时工作量很大,这样反复試算是很費时間的。下面介紹一种不需要試算的方法。如圖1所示,L_1为水庫工作曲綫,其計算时段为△T,L_2为等出力曲綫(出力为N),OA为△T以后的水位,AB表示天然流量。現在要問△T以前的水位在
When plotting reservoir schedules, it is not uncommon to find a water level sometime after a certain period of time in a reservoir. Is it convenient to use the Maschezky basis method, but its drawback is that it needs to be done Trial calculation. It is very time-consuming to plot the basic scheduling curve of reservoir greatly. The following describes a method that does not require trial calculation. As shown in Figure 1, L_1 is the working curve of the reservoir. The calculation period is △ T, L_2 is the equal output curve (output is N), OA is the water level after △ T, and AB represents the natural flow. Now ask △ T water level before