基于DMC策略的高速铁路受电弓系统机械振动研究  

Research on Mechanical Vibration ofHigh-Speed Railway Pantograph System Based on DMC Strategy

作　　者：彭骏 欧志新[1] 邓春兰 PENG Jun;OU Zhi-xin;DENG Chun-lan(Department of Urban Rail Transit and Information Engineering,Anhui Communications Vocational&Technical College,Hefei 230051,China)

机构地区：[1]安徽交通职业技术学院城市轨道交通与信息工程系,安徽合肥230051

出　　处：《兰州文理学院学报（自然科学版）》2024年第4期64-68,119,共6页Journal of Lanzhou University of Arts and Science(Natural Sciences)

基　　金：2022年高校学科(专业)拔尖人才学术资助项目(gxbjZD2022150);2022年安徽省高校自然科学研究重点项目(2022AH052447)。

摘　　要：高速铁路受电弓系统要求电力机车在运行时保证弓网接触的稳定和安全,特点是弓网电流传输平稳,参数实时监测存储,弓网机械振动误差小和运行曲线调节速度快.本文首先分析了高速受电弓系统运行参数的设计指标和曲线特点,提出弓网机械振动的结构;其次,分析了弓网机械振动的原理和DMC参数预测模型,建立基于开环预估控制算法流程图.DMC作为一种类聚优化曲线的开环控制,其主要工作原理是运用受电弓系统动态的参数指标为参考输入,以弓网机械振动在线检测和曲线调整为主的优化策略.通过算法与系统性能之间的定量关系,在应用中对设计参数进行调试.实验结果表明,基于DMC开环控制方法优于GPC闭环反馈控制效果,且具有最优解.Basic characteristics of high-speed railway pantograph system,it is required to ensure the stability and safety of pantograph contact during the operation of electric locomotive,the characteristic is that the current transmission the pantograph is stable,real-time monitoring and storage of parameters,the mechanical vibration error of the pantograph is small and the operation curve adjustment is fast.Firstly,this paper analyzes the design indicators and curve characteristics of the operating parameters of the high-speed pantograph system,proposes the structural characteristics of mechanical vibration of pantograph.Secondly,this paper analyzes the principle of mechanical vibration of the pantograph,as well as the parameter prediction models of DMC,establishes a flowchart based on open-loop predictive control algorithm.DMC(Dynamic Matrix Control)is an open-loop control for clustering optimization curves.The mechanism is to use the dynamic parameters of the pantograph system as the reference input,the main optimization strategy is to detect the mechanical vibration online and adjust the curve.The quantitative relationship between algorithm and system performance guides the debugging of design parameters in application.Finally,through the field instrument detection and analysis of four groups of bow net experiments,theoretical simulation comparison,it is concluded that the DMC open-loop control method is superior to GPC(generalized predictive control)closed-loop feedback control effect has the best solution.

关 键 词：受电弓系统 DMC策略 机械振动 实验传感电路 GPC模型 

分 类 号：TM7[电气工程—电力系统及自动化]