摘要
针对采煤机电液比例调高液压系统在大惯量负载工况下响应速度不够快,控制精度不够高的问题,提出一种前馈-反馈PID自动调高控制方法,并将遗传算法优化后常规PID反馈控制与前馈-反馈PID复合控制进行对比,基于AMESim的仿真结果表明:相比遗传算法优化参数后的常规PID反馈控制,前馈-反馈PID复合控制能够进一步提高系统响应速度,减小轨迹跟踪位移稳态误差,对优化采煤机电液比例调高控制系统具有借鉴意义。
Aiming at the problems that the electro-hydraulic proportional hydraulic system for the shearer drum lifting adjustment is not fast enough to respond under large inertia load environment,and the control accuracy is not high enough,a feedforward-feedback PID control for shearer cutting drum lifting adjustment system is proposed,and the system with PID feedback control optimized by genetic algorithm is compared with feedforward-feedback PID composite control.The simulation results based on AMESim show that:compared with the PID feedback control optimized by genetic algorithm,the feedforward-feedback PID composite control can improve response speed of the system and reduce steady-state error of trajectory tracking displacement,which has reference significance for optimizing the electro-hydraulic proportional control system for shearer drum lifting adjustment.
作者
张义龙
彭天好
ZHANG Yilong;PENG Tianhao(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China)
出处
《煤炭技术》
CAS
北大核心
2022年第10期191-195,共5页
Coal Technology
基金
国家自然科学基金资助项目(51475001)
安徽省学术和技术带头人后备人选资助项目(2019H210)。
关键词
采煤机电液比例调高
前馈-反馈PID控制
遗传算法
稳态误差
shearer electro-hydraulic proportional drum lifting adjustment
feedforward-feedback PID control
genetic algorithm
steady-state error
