基于投影寻踪技术的渠道计量设备比选与应用  

Comparison and application of channel metering equipment based on projection pursuit technology

作　　者：时启军 马素英 张静静 SHI Qijun;MA Suying;ZHANG Jingjing(Hebei Branch of the South-to-North Water Transfer Middle Route Engineering Construction Administration Bureau,Shijiazhuang 050000,China;Hebei Institute of Water Conservancy Science,Shijiazhuang 050000,China;Hebei Water Conservancy Planning and Design Institute Co.Ltd,Shijiazhuang050000,China)

机构地区：[1]南水北调中线干线工程建设管理局河北分局,石家庄050000 [2]河北省水利科学研究院,石家庄050000 [3]河北省水利规划设计研究院有限公司,石家庄050000

出　　处：《水科学与工程技术》2021年第5期18-21,共4页Water Sciences and Engineering Technology

基　　金：河北省水利科技计划项目(2019-05)。

摘　　要：渠道量水对水资源的节约利用、调度与管理有着重要影响,准确测量水量是水资源管理部门进行水量调配的基础,为渠道布设提供科学依据,有利于水资源的保护与节约。因此选择在适宜的量水设备设施,为准确计量水量提供保障具有重要意义。文章针对水工建筑、流速仪等7种常用量水设备,选取测流范围、适应性、淹没度、测量精度、工程造价、使用寿命、自动化程度等7项评价指标,根据判断尺度,通过数据归一化、构造优化投影指标函数、建立了投影寻踪评价模型,解决了7维降维问题,选出了特定条件下的较优计量设备,即量水仪表。结论与灌区实际情况相一致,证明了采用投影寻踪评价模型,对量水设备进行选型是客观科学的。Channel water quantity has an important impact on the conservation,utilization,dispatch and management of water resources.Accurate measurement of water quantity is the basis for water resource management departments to allocate water,which provides a scientific basis for channel layout and is conducive to the protection and conservation of water resources.Therefore,it is of great significance to select appropriate water measuring equipment and facilities to provide guarantee for accurate water measurement.Based on the seven commonly used water measuring equipment such as hydraulic construction and flow meter,the article selects seven evaluation indicators such as flow measurement range,adaptability,reliability,submergence,measurement accuracy,engineering cost,service life,and degree of automation,according to the judgment scale.Through data normalization,constructing an optimized projection index function,establishing a projection pursuit evaluation model,solving the problem of 7-dimensional dimensionality reduction,comprehensively calculating the scores of various water measuring equipment,and selecting the best metering equipment under specific conditions,that is water measuring instrument.The conclusion is consistent with the actual situation of the irrigation area,and proves that the selection of water measuring equipment using the projection pursuit evaluation model is objective and scientific.

关 键 词：量水设备 比选 投影寻踪 

分 类 号：TV5[水利工程—水利水电工程]