负载扰动的电液比例位置系统鲁棒控制策略研究  

Study in Robust Control Strategy for Electro-hydraulic Proportional Position System with Load Disturbance

作　　者：何常玉[1] 施光林[1] 郭秦阳[1] 

机构地区：[1]上海交通大学机械与动力工程学院,上海200240

出　　处：《机床与液压》2018年第3期90-94,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金资助项目(51375304)

摘　　要：针对带有负载扰动的电液比例位置系统,提出了一种可以实现高精度位置跟踪的动态面鲁棒控制策略。该控制策略在设计过程中引入动态面方法避免了传统反步法设计鲁棒控制器时带来的"计算膨胀"的问题,提高了控制策略在实际系统中的可使用性。通过Layapunov方法证明了鲁棒控制器作用下电液比例位置系统的所有信号有界稳定且具有渐近跟踪性能。最后,通过MATLAB仿真,验证了该控制策略的有效性。A robust control strategy based on dynamic surface is proposed for an electro-hydraulic proportional position system with load disturbance, which can implement high precision of the position tracking. Dynamic surface method was introduced in the strategy to avoid the inherent ＂Explosion of complexity＂ problem of the traditional backstepping method and to enhance the availability of the strategy in the practice system. All the closed-loop signals of the system were stabilized with approaching performance at tracking under the function of robust controller, proved via Layapunov method. Finally the effectiveness of this control strategy is certified in MATLAB simulation.

关 键 词：负载扰动 电液比例位置系统 动态面控制 鲁棒控制器 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]