液压与气动2024，Vol.48Issue(4)：91-97,7.DOI:10.11832/j.issn.1000-4858.2024.04.013
泵控液压垫预加速阶段最优控制策略
Optimal Control Strategy of Pump-controlled Hydraulic Cushion in Pre-acceleration Stage
摘要
Abstract
To address the issue of poor positioning accuracy and low production efficiency of domestic hydraulic cushions,an optimal control strategy based on S-shaped curve planning method is proposed.Firstly,the high precision control requirements during the pre-acceleration phase of the hydraulic cushion controlled by the pump are analyzed,and the S-shaped curve planning method is proposed to reduce impact vibrations during system operation.Secondly,an optimal control quadratic function is constructed and an optimal control strategy based on both speed and position control requirements is designed.Finally,a simulation experimental platform for pump-controlled hydraulic cushions is built to experimentally study the proposed control strategy.The results show that the optimal control strategy based on S-shaped curve planning can achieve better control effects for both speed and position control compared with traditional PID control,which will lay a solid foundation for the engineering promotion and application of electric hydraulic servo-pump-controlled hydraulic stretching cushions.关键词
泵控液压垫/状态观测器/S型曲线规划/最优控制策略Key words
pump control hydraulic pad/state observer/S-curve planning/optimal control strategy分类
机械工程引用本文复制引用
何松,董志奎,安会江,王翟,张勇斌..泵控液压垫预加速阶段最优控制策略[J].液压与气动,2024,48(4):91-97,7.基金项目
国家自然科学基金(52275066) （52275066）
河北省高等学校科学技术研究项目(ZD2021340) （ZD2021340）
