针对不稳定对象的四自由度内模控制  

Four-Degree-Freedom Internal Model Control for Unstable Objects

作　　者：黄丹阳[1] 赵曜[1] 

机构地区：[1]四川大学电气信息学院,成都610065

出　　处：《化工自动化及仪表》2012年第10期1265-1267,1314,共4页Control and Instruments in Chemical Industry

摘　　要：针对常规的不稳定对象内模控制方法,加入前馈滤波器以及反馈滤波器构成四自由度内模控制结构,用以独立优化抗扰性、跟踪性和鲁棒性。给出了四自由度内模控制结构的稳定性、稳态性能和鲁棒稳定性的证明,推导出了各个控制器的设计方法,完善了不稳定对象内模控制的理论体系。Aiming at the conventional method for unstable objects' internal model control,both feed-forward filter and feed-back filter were employed to constitute a four-degree-freedom internal model control structure so as to independently optimize the immunity to disturbance and the tracking and the robustness;the control structure's stability,steady-state performance and robust stability were proved to present various controllers' design methods and to have a theoretical system of internal model control for unstable objects improved.

关 键 词：不稳定对象内模控制 四自由度 内稳定 鲁棒跟踪 鲁棒稳定 

分 类 号：TH865[机械工程—仪器科学与技术]