Sliding Mode Control of CNC Electromagnetic Levitation System Based on Feedback Linearization
The levitation rigidity for the levitated crossbeam of the gantry numerical control machine tool which can eliminate friction and increase machining precision is discussed. The feedback linearization and sliding mode control methods are presented in this paper in order to achieve steady levitation. The nonlinear electromagnetic levitation system is transformed into linear system by using feedback linearization method. The sliding mode control method is adopted for improving the robustness of the levitation system. Simulation results show that the system has more powerful ability of suppressing disturbance and high rigidity compared with that using conventional PI control method.
Magnetic Levitation Feedback Linearization Sliding Mode Control Robustness
Wang Li-mei Jin Fu-ying Liu Chun-fang
School of Electrical Engineering, Shenyang University of Technology, Shenyang 110178, China
国际会议
2009年中国控制与决策会议(2009 Chinese Control and Decision Conference)
广西桂林
英文
2706-2709
2009-06-17（万方平台首次上网日期，不代表论文的发表时间）