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文中认为统计的宏观模型在进行在线管网调度时有一定的缺陷,它受“比例负荷”条件的限制,建模时需要大量实测数据。管网节点水压 H 的求定是由非线性隐式方程组 F(QS,H)=0确定的,这是优化计算时的主要障碍。本文认为通过管网水力计算可以先确定各水厂出水量与节点水压的梯度,进而建立节点水压与各水厂出水量之间的近似显式函数。文中讨论了近似显式模型的建模方法,并通过算例验证了模型的可用性。
In the article, the macro model of statistics has certain defects in the online pipeline scheduling. It is limited by the “proportional load” condition, and a large amount of measured data is needed for modeling. The determination of the hydraulic pressure of the pipe network node H is determined by the nonlinear implicit equation F(QS,H)=0, which is the main obstacle in the optimization calculation. In this paper, it is thought that the hydraulic calculation of the pipe network can first determine the gradients of the water output of the water plants and the pressure of the nodes, and then establish an approximate explicit function between the water pressure of the nodes and the water output of each water plant. In this paper, the modeling method of approximate explicit model is discussed, and the availability of the model is verified by examples.