Sliding Mode Control of CNC Electromagnetic Levitation System Based on Feedback Linearization
会议名称：《2009中国控制与决策会议》
会议日期：2009年
学科分类：080202[工学-机械电子工程] 08[工学] 0802[工学-机械工程]
基 金：supported by National Nature Science Foundation under Grant 50805098
关 键 词：Magnetic Levitation Feedback Linearization Sliding Mode Control Robustness
摘 要：The levitation rigidity for the levitated crossbeam of the gantry numerical control machine tool which can eliminate friction and increase machining precision is *** feedback linearization and sliding mode control methods are presented in this paper in order to achieve steady *** nonlinear electromagnetic levitation system is transformed into linear system by using feedback linearization *** sliding mode control method is adopted for improving the robustness of the levitation *** results show that the system has more powerful ability of suppressing disturbance and high rigidity compared with that using conventional PI control method.