基于多模型模糊切换的轧机液压伺服系统位置控制  

Hydraulic Servo Position System of Mill Based on Multiple Models Fuzzy Switching Control

作　　者：范志远[1] 方一鸣[1] 欧发顺[1] 张文亮[1] 

机构地区：[1]燕山大学西校区电气工程学院工业计算机控制工程河北省重点实验室,河北秦皇岛066004

出　　处：《冶金设备》2009年第2期18-22,共5页Metallurgical Equipment

摘　　要：针对轧机液压伺服系统中弹性负载力和外负载力的跳变,建立并优化系统连续工作时不同工况下的轧机液压伺服系统被控对象的多模型集,分析了采用状态反馈控制的、具有外部扰动的切换系统的稳定性。对每一模型采用LMI方法设计了稳定的状态反馈控制器,对多模型控制系统采用基于模糊规则切换策略进行设计和优化.仿真结果表明,所设计的控制系统具有良好的稳定性和动静态性能。In accordance with the jumping problem of elastic load force and external load force that existed in the mill hydraulic servo system, a multi-model set for hydraulic servo system is established and optimized under the different condition when the system is continuously working. The stability criteria of switching system with state feed- back control and external perturbation is analyzed. For each model, a feedback controller using LMI method and a fuzzy switching stratety of the system are designed and optimized. Simulation result demonstrates that the designed control system has good stabilization and static/dynamic performance.

关 键 词：液压伺服系统 多模型 模糊逻辑 切换控制 

分 类 号：TG333[金属学及工艺—金属压力加工]