摘要
灌区高效管理、精准灌溉是水利高质量发展的内在需求,也是灌区信息化发展的必然趋势。水联网全渠道算法模型通过渠道上所有水闸、直开口自动调节水位、流量,实现相应渠道输配水的数字化、智能化。算法模型以积分时滞模型为基础,建立水力学方程组,对多输入多输出的渠系控制系统进行二次型优化,输出全部控制部件的调控动作。2021年算法模型在宁夏秦汉灌域第一农场渠试验成功,此后扩展推广应用到秦渠上游,然后至秦汉渠全灌域,至2023年冬灌,已接入379个测控一体化闸门和18座水闸,覆盖3条干渠、94万亩灌域,实现了灌域多渠系串联、并联和混联的树状全渠道智能控制。水联网全渠道算法模型具有“节水、节劳、精准、高效”特征,根据近3年的运行情况初步估算,可提升管理效率50%以上,节水率达8%,输配水精准度达到96%以上。
Efficient management and precision irrigation are inherent requirements for high-quality water conservancy development in the new era,and also the inevitable trend in the informationization of irrigation areas.The Internet of Waters-based intelligent control algorithm model for the whole canal achieves digital and intelligent water transmission and distribution by automatically adjusting the water level and flow rate at all sluices and straight openings along the canal.The algorithm model,based on the integral time-delay model,establishes a set of hydraulic equations to perform quadratic optimization for multi-input and multi-output canal system control,outputting the regulatory actions of all control components.In 2021,the algorithm model was tested at the first farm canal in the Qinhan Canal Irrigation Area of Ningxia.It was subsequently expanded and applied to the upstream of the Qinhan Canal,and then to the whole irrigation area of the Qinhan Canal.By the winter irrigation in 2023,379 integrated metering and control gates and 18 sluices have been connected,covering 3 trunk canals and 940,000 mu of irrigation area.The tree-shaped intelligent control of canal systems in the irrigation area is realized,marked by series,parallel and hybrid connections.This algorithm model conserves water and saves labor with high precision and efficiency.Preliminary estimates based on the last 3 years of operation suggest that the management efficiency can be improved by more than 50 percent,the water conservation rate can reach 8 percent,and the precision of water transmission and distribution can reach more than 96 percent.
作者
马飞
唐娟
朱现坡
刘晋龙
查正兴
MA Fei;TANG Juan;ZHU Xianpo;LIU Jinlong;ZHA Zhengxing(Qinhan Canal Management Office of Ningxia Hui Autonomous Region,Wuzhong 751100,Ningxia,China;Tsinghua University,Beijing 100084,China)
出处
《水利发展研究》
2024年第9期96-101,共6页
Water Resources Development Research
基金
宁夏回族自治区中央引导地方科技发展专项项目(2022FRD05012)。
关键词
全渠道控制
算法模型
秦汉渠
灌溉管理
whole-canal control
algorithm model
Qinhan Canal
irrigation management
