多目标大规模供水管网监测点选址方法研究

Study on Location Method of Multi-objective Large-scale Water Supply Network Monitoring Points

传统的供水管网监测点选址方法,只能检测监测点低负压状态,不能确定监测点低负压值,使得监测点可视面积小并且风险地区面积大,因此设计一种多目标大规模供水管网监测点选址方法。通过计算每一监测点水压值和监测点与上一监测点最大高程正差,确定监测点低负压。在压力监测、流量监测和水质监测三个适应度函数的基础上,进一步设计多目标大规模供水管网监测点选址的适应度函数。根据水压变化率可以得到供水管网监测点选址模型的约束条件需水量影响矩阵,根据需水量影响矩阵建立供水管网监测点选址模型。监测点应覆盖供水管网的各个部分,考虑供水管网的地理分布、当地的社会经济状况和供水服务的要求,至此完成多目标大规模供水管网监测点选址。实验结果表明,设计的多目标大规模供水管网监测点选址方法,选择监测点可视面积大并且风险地区面积小,证明设计的方法好,有一定的研究价值。

The traditional water supply network monitoring point location method can only detect the low negative pressure status of the monitoring point,but cannot determine the low negative pressure value of the monitoring point,which makes the monitoring point visual area small and the risk area large.Therefore,a multi-objective large-scale water supply network monitoring point location method is designed.By calculating the water pressure value of each monitoring point and the maximum positive elevation difference between the monitoring point and the previous monitoring point,the low negative pressure of the monitoring point is determined.Based on the three fitness functions of pressure monitoring,flow monitoring and water quality monitoring,the fitness function of multi-objective large-scale water supply network monitoring site selection is further designed.According to the change rate of water pressure,the water demand influence matrix of the monitoring point location model of water supply network can be obtained,and the monitoring point location model of water supply network can be established according to the water demand influence matrix.Monitoring points should cover all parts of the water supply network,considering the geographical distribution of the water supply network,local socio-economic conditions and water supply service requirements,so as to complete the location of multi-objective large-scale water supply network monitoring points.The experimental results show that the design of multi-objective large-scale water supply network monitoring site selection method,the monitoring point selection area is large and the risk area is small,which proves that the design method is good and has certain research value.