混合磁悬浮系统的H_∞控制器设计  

Design of Robust Controller for Hybrid Maglev System

作　　者：乔芳[1] 林小玲[1] 

机构地区：[1]上海大学,上海200072

出　　处：《微特电机》2011年第9期66-69,共4页Small & Special Electrical Machines

摘　　要：鲁棒H∞控制通过引入3个加权函数矩阵,有效抑制了外界扰动和模型不确定性对控制性能的影响,从而使控制器具有鲁棒性。在分析了系统动态模型的基础上,通过合理选择加权函数,设计了混合磁浮系统的H∞控制器,并进行了仿真研究。仿真结果表明:与传统的比例-积分-微分,即PID控制器相比,采用鲁棒H∞控制理论设计的混合磁悬浮系统控制器有较好的动态性能、较快的响应速度和较强的鲁棒性。Abstract：With the introduction of the three weighting function matrices, robust H∞ control effectivly suppressed the impact of external disturbance and model uncertainty on control performance, making the controller robust. Based on the analysis of the dynamic system, H∞ controller for the hybrid maglev system was designed by rationally choosing the weighting function. Simulation of the controller was also carried out. The results show that compared with the convention PID controller, the hybrid Maglev system with robust H∞ controller possesses good dynamic performance,quick response and robustress.

关 键 词：混合磁悬浮系统 鲁棒控制 H∞混合灵敏度 加权函数 

分 类 号：TM359.4[电气工程—电机]