摘要
针对液压系统建模困难,模型误差影响系统动态性能和负载干扰难于抑制的问题,基于X-滤波自适应逆系统结构提出了一种对模型误差不敏感的液压位置自适应逆扰动消除系统。针对该系统结构特点,提出一种适用于X-滤波结构的自适应算法,利用该算法得到不受模型误差影响的较为精确的液压位置逆模型,为液压位置扰动消除系统中控制器和扰动消除器的建立奠定基础。仿真结果表明:液压位置自适应逆扰动消除系统在建模误差较大的情况下,具有良好的动态响应和干扰抑制能力。
Aimed at the problem that the dynamic performance and the disturbances rejection is affected by the bigger modeling error in hydraulic position servo system, an adaptive inverse disturbance canceling control system based on the filtered-X frame was presented, which is insensitive to the modeling error. A suited algorithm was given to the fihered-X frame, which can be used to com- plete the inverse modeling without the affection of the modeling error. Simulation result shows the effectiveness of the adaptive inverse disturbance canceling control system based on the filtered-X frame.
出处
《机床与液压》
北大核心
2009年第7期89-92,共4页
Machine Tool & Hydraulics
