AMB转子系统动力学分析与控制研究  

Dynamic analysis and control of AMB rotor system

作　　者：李山[1,2] 卿豪 杨奕 李耀[1] LI Shan;QING Hao;YANG Yi;LI Yao(Chongqing University of Technology, Chongqing 400054, China;Chongqing Energy Internet Engineering Technology Research Center, Chongqing 400054, China)

机构地区：[1]重庆理工大学,重庆400054 [2]重庆市能源互联网工程技术研究中心,重庆400054

出　　处：《重庆理工大学学报（自然科学）》2022年第2期179-190,共12页Journal of Chongqing University of Technology：Natural Science

基　　金：重庆市技术创新与应用发展专项面上项目(cstc2019jscx-msxmX0003);重庆理工大学研究生创新项目(clgycx20202047)。

摘　　要：在主动磁悬浮轴承(active magnetic bearing,AMB)转子系统的静态稳定悬浮阶段,为了减缓传统PID控制带来的转子过冲碰壁现象,提出一种基于动力学分析的控制策略。对磁轴承转子系统进行理论动力学分析;将实测运动相关量与理论推导的运动量进行对比,修正理论动力学分析存在的不足;基于修正后的动力学分析推导出减缓过冲控制预测条件,结合不完全微分PID控制,形成基于动力学分析的带预测条件的控制策略。系统仿真及样机实验结果均表明该研究方法和控制理论能有效减少AMB转子过冲碰壁现象,实现AMB转子系统的静态稳定悬浮。In the static stable suspension stage of the Active Magnetic Bearing rotor system,in order to reduce the phenomenon of rotor overshoot and wall collision caused by traditional PID control,a control strategy based on dynamic analysis is proposed.Firstly,the theoretical dynamics of magnetic bearing rotor system is analyzed;Secondly,the measured motion correlation is compared with the theoretically derived motion to correct the shortcomings of the theoretical dynamic analysis;Based on the modified dynamic analysis,the prediction conditions of overshoot mitigation control are derived,and combined with incomplete differential PID control,a control strategy with prediction conditions based on dynamic analysis is formed;Finally,the system simulation and prototype experimental results show that this research method and control theory can effectively reduce the overshoot and wall collision of AMB rotor and realize the static stable suspension of AMB rotor system.

关 键 词：主动磁悬浮轴承 动力学分析 静态稳定悬浮 过冲碰壁 

分 类 号：TH133[机械工程—机械制造及自动化]