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阀控对称液压缸先进控制策略对比研究
引用本文:徐威,郭丽丽.阀控对称液压缸先进控制策略对比研究[J].机床与液压,2022,50(15):151-157.
作者姓名:徐威  郭丽丽
作者单位:沈阳工业大学机械工程学院
基金项目:辽宁省自然科学基金项目(2019-ZD-0215);辽宁省科技厅重点实验室联合基金项目(2020-KF-12-07)
摘    要:针对阀控缸系统先进控制算法理论和应用研究不足的问题,仿真研究多种控制算法在阀控对称缸液压系统控制中的应用。推导阀控对称缸的非线性微分方程,将伺服阀的动态性能考虑为一阶系统问题;进行PID、极点配置和基于反步法的自适应控制器算法的理论推导;建立阀控对称缸的功率键合图理论模型,应用上述控制算法对它进行控制效果仿真。结果表明:基于反步法的自适应控制器具有规范的设计方法和广泛的适应性,其控制效果和应用价值都优于传统控制方案。

关 键 词:阀控对称缸  控制策略  反步法  自适应控制

Comparative Study on Advanced Control Strategy of Valve Controlled Symmetric Hydraulic Cylinder
XU Wei,GUO Lili.Comparative Study on Advanced Control Strategy of Valve Controlled Symmetric Hydraulic Cylinder[J].Machine Tool & Hydraulics,2022,50(15):151-157.
Authors:XU Wei  GUO Lili
Abstract:Aiming at the insufficient of the theory and application of advanced control algorithm for the valve controlled cylinder system,the applications of various control algorithms in hydraulic system control of valve controlled symmetric cylinder were studied.The nonlinear differential equation of valve controlled symmetric cylinder was deduced,and the dynamic performance of servo valve was considered as a first-order system question;the theoretical derivations of PID,pole assignment and adaptive controller based on back stepping were carried out;a power bond graph theoretical model of the valve control symmetric cylinder was established,and the control effects were simulated by using the above control algorithms.The results show that the adaptive controller based on the back stepping has a standardized design method and wide adaptability,and its control effect and application value are greater than the traditional control scheme.
Keywords:Valve controlled symmetric hydraulic cylinder  Control strategy  Back stepping  Adaptive control
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