明渠输水流量不平衡量感知及水位超限预警方法研究  

Study on perception of open channel conveyance water flow rate imbalance and method of water level over-limit early warning

作　　者：李月强 马芳平 薛萍 雷晓辉 张荣轩[3] 闫静 LI Yueqiang;MA Fangping;XUE Ping;LEI Xiaohui;ZHANG Rongxuan;YAN Jing(College of Water Conservancy and Hydropower Engineering,Hohai University,Nanjing 210098,Jiangsu,China;Science and Technology Information Department,China Guodian Dadu River Hydropower Development Co.,Ltd.,Chengdu 610016,Sichuan,China;School of Water Conservancy and Environment,University of Jinan,Jinan 250022,Shandong,China;School of Water Conservancy and Hydroelectric Power,Hebei University of Engineering,Handan 056038,Hebei,China;China Institute of Water Resources and Hydropower Research,Beijing 100038,China;Research Center of Fluid Machinery Engineering and Technology,Jiangsu University,Zhenjiang 212013,Jiangsu,China)

机构地区：[1]河海大学水利水电学院,江苏南京210098 [2]国电大渡河流域水电开发有限公司科技信息部,四川成都610016 [3]济南大学水利与环境学院,山东济南250022 [4]河北工程大学水利水电学院,河北邯郸056038 [5]中国水利水电科学研究院,北京100038 [6]江苏大学流体机械工程技术研究中心,江苏镇江212013

出　　处：《水利水电技术（中英文）》2022年第1期73-82,共10页Water Resources and Hydropower Engineering

基　　金：国家自然科学基金面上项目(51779268);安徽省引江济淮集团有限公司科技项目资助“引江济淮工程(安徽段)综合调度运行方式研究”(YJJH-ZT-ZX-20190718170)。

摘　　要：明渠中分水的不确定性变化时常引起输水进出口流量的不平衡现象。流量不平衡一般通过流量监测识别,但是对于无流量监测或者监测信息不准确情况,流量的偏差主要体现在水位的持续变化上。通过分析单位流量下的水位变化率,提出了在具有水位实测变化数据情况下,基于实时水位监测数据的流量不平衡识别方法,并通过分析不平衡流量下的水体蓄量变化趋势,实现了流量不平衡下的水位超限时间估计。通过建立引江济淮工程派河口泵站—蜀山泵站段的仿真模型来代替实际模型对该方法进行检验,结果表明,该方法能够较准确地感知进出口缺水流量值,同时也能快速和准确地识别出超限时间,为调度决策提供支撑。The uncertain change of open channel water division often causes the phenomenon of the flow rate imbalance at inlet and outlet of water conveyance. The flow rate imbalance is usually identified through the relevant flow rate monitoring, but the deviation of flow rate is mainly reflected in the continuous change of water level for the situation without data or with inaccurate monitoring data. Through analyzing the water level changing rate under unit flow rate, a real-time water level monitoring data-based identification method of flow rate imbalance under the situation with measured water level change data is proposed herein, and then the estimation of the time of the over-limit water level under the condition of flow rate imbalance is realized with the method of flow rate imbalance identification of real-time water level monitoring data through analyzing the changing trend of water storage under the flow rate imbalance. The method given herein is verified through establishing the simulation model of the section from Paihekou Pumping Station to Shushan Pumping Station of Yangtze River-to-Huaihe River Water Transfer Project to replace the relevant actual model and the result shows that the method given herein can not only more correctly perceive the flow rate of water shortage at inlet and outlet, but can also quickly and accurately identify the over-limit time at the same time to provide a support for the dispatching decision-making concerned.

关 键 词：明渠调水 水位监测信息 不平衡流量 超限时间 引江济淮 

分 类 号：TV68[水利工程—水利水电工程]