信息与控制2016，Vol.45Issue(4)：415-420,431,7.DOI:10.13976/j.cnki.xk.2016.0415
电液伺服系统可拓自适应PID控制策略研究
Research on Extension-adaptive PID Control Strategy for Electro-hydraulic Servo System
摘要
Abstract
To solve the problems of electro-hydraulic servo systems that are nonlinear and have parameter uncertain-ty and external load disturbances,we propose a new control strategy,called extension-adaptive proportional-integrate-differential (PID)control.This control strategy comprises a PID controller and an extension extrapo-lator that contains modules such as characteristic variable drawing,correlation function calculation,character-istic mode partitioning,and strategy reasoning.Based on the characteristic modes and control requirements, the system uses switch-control and adaptively adjusts the PID parameters.To evaluate its practical application performance,we applied the extension-adaptive PID controller to an electro-hydraulic position servo system, and the simulation results show that the control strategy satisfies the control requirements and demonstrates good tracking performance and strong robustness,and can effectively transform the control status.关键词
电液伺服系统/可拓PID(propotional-integrate-differential)/特征模式/关联函数/自适应Key words
electro-hydraulic servo system/extension PID/characteristic mode/correlation function/adaptive分类
信息技术与安全科学引用本文复制引用
李中华,张泰山,周翔..电液伺服系统可拓自适应PID控制策略研究[J].信息与控制,2016,45(4):415-420,431,7.基金项目
国家高技术研究发展计划资助项目 （）
