摘要
梳理了数字孪生技术缘起背景和发展进程,分析指出数字灌区是建设数字孪生灌区的重要基础,现代化数字灌区是推进数字孪生灌区建设的重要发展阶段。基于对数学模型的功能认知,在数字孪生灌区框架下,首次提出将数学模型划分为3个层次,即普适性平台模型、针对性应用模型和友好性交互模型。同时,基于数字孪生灌区定义,分析指出数字孪生模型具有实时动态性及闭环反馈性本质特征,物理灌区与孪生灌区存在同步仿真、虚实交互与迭代优化的过程,二者在灌区全生命周期相互影响,相互促进,孪生灌区不仅随着物理灌区的改变而实时改变,而且基于孪生灌区所做的分析和决策也会实时反馈给物理灌区,并影响物理灌区的行为。因此,具体工作实践中,应基于物理灌区现代化改造需要,发现问题,遵循确有需要、节水高效和可以持续的原则,精准选择灌区数字孪生对象,优化创新数学模型,着力突破关键技术,有序开发重点应用,强化网络安全和数据安全,以期能够更有序、更精准、更高效地推进数字孪生灌区建设。
This paper reviews the technical background and development progress of digital twin technology,and points out that digital irrigation district is a fundamental part for the digital twin irrigation district establishment.Modernized digital irrigation district is an important stage of development to promote the construction of digital twin irrigation district.Based on a functional understanding of the mathematical model and within the framework of digital twin irrigation district,it is firstly proposed to divide the mathematical model into three levels,namely basic platform model,targeted application model and friendly interaction model.Based on the definition of digital twin irrigation district,it also analyzes that the digital twin model has the essential features with real-time dynamics and closed-loop feedback.There exsists a process of synchronous simulation,virtual-real interaction and iterative optimization between physical irrigation district and twin irrigation district.They influence and promote each other throughout the life cycle of the irrigation district.The twin irrigation district not only changes in real-time with the change of physical irrigation district,but also the analysis and decisions based on the twin irrigation district will feed back to the physical irrigation district in real-time which results the response of the physical irrigation district.Therefore,in practice,problems should be identified based on the real needs of physical irrigation modernization,and the principles of real need,water-saving efficiency and sustainability should be followed.Digital twin physical object of irrigation district should be accurately selected and focused,mathematical models need to be optimized and innovated.Key advanced technologies and properly major application should be developed and practiced.Network security and data safety should be strengthened.It is expected to establish a digital twin irrigation district more orderly,accurately and efficiently.
作者
谢崇宝
白静
郑世宗
武前明
夏康平
XIE Chong-bao;BAI Jing;ZHENG Shi-zong;WU Qian-ming;XIA Kang-ping(China Irrigation and Drainage Development Center,Beijing 100054,China;Zhejiang Institute of Hydraulics and Estuary,Hangzhou 310020,Zhejiang Province,China)
出处
《中国农村水利水电》
北大核心
2024年第11期179-184,195,共7页
China Rural Water and Hydropower
基金
水利部重大科技项目“现代灌区水量精准调控数字赋能关键技术研发与示范”(SKS-2022049)。
关键词
数字灌区
现代化数字灌区
数字孪生灌区
digital irrigation district
modernized digital irrigation district
digital twin irrigation district