ABSTRACT

Pressure management is one of the most efficient ways to reduce leaks in water networks. Conventional pressure management techniques in water networks deals with the control of a single boundary Pressure Reducing Valve (PRV). The real-world water network under study in this work has multiple internal PRVs within the DMA, which makes direct application of the existing pressure management techniques difficult. In this study, we have formulated a simulation-optimization framework that involves network sectorization and PRV control. Initially, the DMA was divided into multiple Pressure Management Areas (PMAs), based on the location and control area of each PRV. The control strategy was then formulated for each PRV based on remote node modulation. The results of this study showed that the use of multiple internal PRVs within a DMA helped in better pressure management than a single boundary PRV. This control strategy helped in reducing the NRW to 18% from 24%.

摘要

压力管理是减少供水网络泄漏的最有效方法之一。水网络中的常规压力管理技术处理单个边界减压阀（PRV）的控制。在这项工作中，正在研究的现实世界的供水网络在DMA中具有多个内部PRV，这使得直接应用现有压力管理技术变得困难。在这项研究中，我们制定了一个模拟优化框架，其中涉及网络分区和PRV控制。最初，根据每个PRV的位置和控制区域，将DMA划分为多个压力管理区域（PMA）。然后根据远程节点调制为每个PRV制定控制策略。这项研究的结果表明，与单个边界PRV相比，在DMA中使用多个内部PRV有助于更好的压力管理。这种控制策略有助于将净RWR从24％降低到18％。