磁悬浮主轴模糊控制的设计与实现  

Design and Realization of Fuzzy Control for Magnetic Levitated Spindle

作　　者：吴华春[1] 胡业发[2] 周祖德[2] 

机构地区：[1]武汉理工大学机电工程学院,湖北武汉430070 [2]武汉理工大学数字制造重点实验室,湖北武汉430070

出　　处：《武汉理工大学学报（信息与管理工程版）》2009年第3期413-416,共4页Journal of Wuhan University of Technology：Information & Management Engineering

基　　金：国家自然科学基金资助项目(50675163);湖北省数字制造重点实验室开放基金资助项目(SZ0618)

摘　　要：磁悬浮主轴是一个典型的高阶、非线性、强耦合和多变量时变系统,难以建立准确的数学模型,传统PID控制不能适应多变的磁悬浮主轴加工工况。因此以磁悬浮主轴为控制对象,采用模糊控制算法,克服传统PID存在的难点,利用Matlab模糊逻辑工具箱进行仿真与实验调试相结合的办法进行研究。实验和仿真结果表明,该方法提高了磁悬浮主轴的控制精度和稳定性,其性能优于最优PID控制器,具有较强的鲁棒性。Magnetic Levitated Spindle （MLS） is a typical high order, nonlinear, strong coupling, muhivariable time- varying system,the accurate mathematical model of which is difficult to establish. The traditional PID control can not adapt to the complex conditions of MLS. Therefore, the MLS system was used as the control object to overcome the existing difficulties by adopting fuzzy control algorithm. The research was carried out by the combination of simulation using Matlab fuzzy logic toolbox and experimental debug. The results show that this method can greatly improve the control precision and stability of the MLS. The performance is better than the optimal PID controller with good robustness.

关 键 词：磁悬浮主轴 模糊控制 PID控制 非线性 强耦合 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]