数字孪生驱动的长距离带式输送机运行优化方法  

An Operation Optimization Method for Long Distance Belt Conveyors Driven by Digital Twin

作　　者：杨春雨 卜令超 陈斌 YANG Chun-Yu;BU Ling-Chao;CHEN Bin(School of Information and Control Engineering,China University of Mining and Technology,Xuzhou 221116)

机构地区：[1]中国矿业大学信息与控制工程学院,徐州221116

出　　处：《自动化学报》2024年第11期2204-2218,共15页Acta Automatica Sinica

基　　金：国家自然科学基金(61873272,62073327);江苏省自然科学基金(BK20200086,BK20200631)资助。

摘　　要：长距离带式输送机是矿山、港口等领域运输散装物料的主要工具.针对长距离带式输送机的安全节能运行问题,研究数字孪生驱动的运行优化方法.首先,构建由数字孪生模型、模型同步算法、控制策略和现实带式输送机组成的数字孪生驱动运行优化框架;然后,建立数字孪生模型,包括基于变质量牛顿第二定律和有限元分析法的输送带动力学模型、物料流动态模型和动态能耗模型;最后,提出数字孪生驱动的计算决策-仿真评估-优化校正(Decision-simulation-correction,DSC)优化决策方法,优化带式输送机的稳态和暂态运行带速,形成可行带速设定曲线.实验结果表明,数字孪生驱动的带式输送机运行优化方法可以实现带式输送机安全节能运行.与传统控制方法相比,能够根据运行工况实时调速,提高输送带填充率,节能13.87%.Long distance belt conveyors are used as a main tool for transporting bulk materials in the fields of mines,ports and so on.For the safe and energy saving operation of long distance belt conveyors,the operation optimization method driven by digital twin is studied.Firstly,the framework of the operation optimization driven by digital twin is constructed,which includes digital twin models,model synchronization algorithms,control strategy,and realistic belt conveyors.Then,digital twin models are established,including the dynamic model of conveyor belt based on the variable quality Newton's second law and finite element analysis method,material flow dynamic model and dynamic energy model.Finally,the decision-simulation-correction(DSC)optimization method driven by digital twin is proposed,which can optimize the steady and transient belt speed of the belt conveyor to build a feasible speed setting curve.Experiments show that the operation optimization method driven by digital twin can result in a belt conveyor that is both safe and energy efficient.Compared with the traditional method,the proposed method can adjust the belt speed setpoint in real-time based on operating conditions,increasing the conveyor belt fill rate,which results in energy savings of 13.87%.

关 键 词：长距离带式输送机 数字孪生 运行优化 动态模型 

分 类 号：TH222[机械工程—机械制造及自动化]