基于滑模变结构控制的带材纠偏电液伺服系统仿真研究  

Strip Eviation Correction Based on Sliding Mode Variable Structure Control Research on Simulation of Electro-Hydraulic Eervo System

作　　者：罗瑜[1] 陈靖 罗艳蕾[1] 王伟 LUO Yu;CHEN Jing;LUO Yan-lei;WANG Wei(College of Mechanical Engineering,Guizhou University,Guizhou Guiyang 550025,China)

机构地区：[1]贵州大学机械工程学院,贵州贵阳550025

出　　处：《机械设计与制造》2023年第5期279-282,共4页Machinery Design & Manufacture

基　　金：贵州大学培育项目黔科合平台人才[2018]5781-23号;贵州省创新群体重大研究项目(黔教合KY字[2017]029)。

摘　　要：为满足带材纠偏电液伺服控制系统对纠偏精度、稳定性和准确性的要求,提出一种通过滑模变结构控制的电液伺服系统。该系统采用滑模变结构控制方法将带材稳定于指定位置,并运用指数趋近率消除抖振带来的影响。研究以文中提出的带材纠偏电液伺服系统为对象,通过AMESim和MATLAB联合仿真的方式,对比了滑模变结构控制与PID控制的效果。研究结果表明:基于滑模变结构的控制方法相比于传统的PID有更好的动态响应特性,最后得出的跟随曲线抖振更小,跟随误差更小,更能满足纠偏系统的控制要求,该控制方法可为需要高精准性、高稳定性的电液伺服系统设计提供理论支持和参考。In order to meet the requirements of the electro-hydraulic servo control system for strip deviation correction on the accuracy,stability and accuracy,an electro-hydraulic servo system controlled by sliding mode variable structure is proposed.The system uses the sliding mode variable structure control method to stabilize the strip at the designated position,and uses the exponential approach rate to eliminate the impact of buffeting.Taking the electro-hydraulic servo system of strip deviation correction as the object,the effect of sliding mode variable structure control and PID control is compared by the way of AMESim and MATLAB joint simulation.The results show that the control method based on the sliding mode variable structure has better dynamic response characteristics than the traditional PID control method,and the resulting follow-up curve has smaller chattering and follow-up error,which can better meet the control requirements of the deviation correction system.The control method can provide theoretical support and reference for the design of the electro-hydraulic servo system requiring high accuracy and stability.

关 键 词：带材纠偏 电液伺服 滑模变结构控制 联合仿真 

分 类 号：TH16[机械工程—机械制造及自动化] TH137