ABSTRACT

An existing water distribution network (WDN) may need to be expanded by adding a sub-network for the newly developed areas. The size of the problem becomes larger when the stochastic nature of domestic demands, optimal design and layouts, control, and operation of various hydraulic components are considered. In this study, the single-port Thevenin theorem used in electrical circuits is applied to reduce a large WDN with its equivalent network consisting of a single source and a single pipe. The equivalent network is then attached to a sub-network for focused analysis. The accuracy and robustness of the proposed network reduction procedure are investigated on realistic WDNs for various sub-network demands using steady and extended period simulations. A simplified approach is also presented to achieve the same objective but constrained by the level of accuracy. Hydraulic engineers can use the proposed methodology as an efficient network reduction tool.

摘要

可能需要通过添加新开发区域的子网来扩展现有的供水网络（WDN）。当考虑到国内需求的随机性，最佳设计和布局，各种液压元件的控制和操作时，问题的规模将变得更大。在这项研究中，电路中使用的单端口戴维南定理通过等效电路由单个源和单个管道组成，以减少大型WDN。然后，将等效网络连接到子网以进行重点分析。使用稳态和扩展周期仿真，针对各种子网需求，在实际的WDN上研究了建议的网络缩减程序的准确性和鲁棒性。还提出了一种简化的方法来实现相同的目标，但受到精度水平的限制。液压工程师可以将建议的方法用作有效的网络缩减工具。