冷轧液压辊缝系统的自适应模糊Backstepping控制  

Adaptive fuzzy backstepping control for hydraulic roll-gap system of a cold rolling mill

作　　者：吴忠强[1,2] 汤雅超[2] 肖雪飞[2] 于金平[2] 

机构地区：[1]国家冷轧板带装备及工艺工程技术研究中心,秦皇岛066004 [2]燕山大学工业计算机控制工程河北省重点实验室,秦皇岛066004

出　　处：《振动与冲击》2013年第24期146-151,共6页Journal of Vibration and Shock

基　　金：河北省自然科学基金资助(F2012203088)

摘　　要：针对液压辊缝系统提出一种自适应模糊Backstepping控制方法。根据系统特征选取适当的Lyapunov函数,减少了Backstepping设计的步骤,有效解决了高阶系统Backstepping设计过程中的"计算膨胀"问题。该方法采用自适应模糊系统消除了参数不确定项和负载干扰项的影响。给出了不确定参数的自适应律和系统跟踪误差收敛性证明。仿真结果表明,该控制器使系统具有快速、准确的动态性能。Here, an adaptive fuzzy backstepping controller was presented for a hydraulic roll-gap system of a cold rolling mill. The appropriate Lyapunov functions were selected to reduce steps of the backstepping design. The problem of ＂explosion of calculation＂ in the backstepping design process was solved. Adaptive fuzzy systems were employed to eliminate the impacts of uncertain parameters and load disturbances. The convergence of the system tracking error was proved and the adaptive laws of uncertain parameters were obtained. The simulation results showed that the controller can make the roll - gap system of a cold rolling mill achieve fast and accurate dynamic performances.

关 键 词：自适应模糊 反步算法 辊缝控制系统 

分 类 号：O343.5[理学—固体力学]