基于节点能量冗余差的给水管网DMA分区方法研究

Study on automated creation of DMA boundaries of water supply networks based on the difference of energy redundancy of nodes

供水管网的独立计量分区(District Metered Areas,DMAs)是一种控制漏损的有效方法,但DMA分区方法尚不成熟。在借鉴国内外管网分区经验及研究成果的基础上,提出了基于节点能量冗余差的计算分区方法。该方法基于节点间的能量冗余差和节点压力标准差分别建立了DMA边界划分模型和进水管选择模型,并分别利用谱聚类算法和遍历法对2个模型进行求解,获得DMA分区。为了验证该模型,选择2个不同规模的管网进行DMA分区。结果表明,该方法能够较好地完成中小型管网的DMA分区,分区后对原管网的压力分布有所改善。

District metered areas （DMAs） is an effective method of leakage control in water supply networks （WSNs）, however, the existing theory research of partitioning method for DMA is still immature. Drawing lessons from foreign experience and domestic research achievements of DMA partition, the new calculation method based on the difference of energy redundancy was proposed in this paper. Based on the difference of energy redundancy of nodes and node pressure variance, the DMA boundary partition model and the water inlet pipe selection model were established respectively by this method. And the spectral clustering algorithm and traversal algorithm were used to solve the two model respectively to achieve DMA partition. The resulting methodology were tested in two different scale benchmark networks to verify the model. And the result showed it could be used to successfully partition WSNs, the pressure distribution of the WSNs were improved after DMA partition.