200MN双缸油压机同步运动控制系统的分析及改进设计  

An Analysis of the Synchronizational System of 200 MN Dual-cylinder Hydraulic Press and Its Improvement in Design

作　　者：韩清娟[1] 杨逢瑜[1] 于振燕[1] 

机构地区：[1]兰州理工大学流体动力与控制学院

出　　处：《甘肃科学学报》2005年第4期91-95,共5页Journal of Gansu Sciences

摘　　要：针对200 MN油压机双缸不同步运动,提出了一种新的电液同步运动控制方法:为每个液压缸设计了基于压力控制的单输入-单输出(SISO)扰动观测器,做为内环控制.在此基础上着重研究应用线性多输入-多输出(M IMO)鲁棒控制技术来设计一个同步运动控制器作为外环输出,以解决影响该油压机双缸不同步的非线性问题.试验结果证明以上方法有效.In order to resolve the problem of synchronization of the 200 MN dual-cylinder hydraulic press, a new control system of electro-hydraulics was provided. A nonlinear single input-single output （SISO） perturbation observer-based pressure-force controller for each of the press cylinders as the innerloop controller has been designed. Now emphasis is laid on using linear multiple input-multiple outputs （MIMO） and robust control technique to design an outer-loop motion synchronization controller and to solve this problem influenced by nonlinearities. The experiments verified the effectiveness of the proposed approach.

关 键 词：油压机 运动同步 扰动观测 鲁棒控制 

分 类 号：TP271.31[自动化与计算机技术—检测技术与自动化装置]