光学精密工程2024，Vol.32Issue(8)：1164-1174,11.DOI:10.37188/OPE.20243208.1164
基于惯性运动自适应前馈的磁轴承基座扰动抑制
Inertial motion adaptive feedforward based base perturbation suppression for magnetic bearings
摘要
Abstract
The rotor vibrations can be induced by the base motion in the active magnetic bearing systems.To solve this problem,a feedforward control approach based on inertial motion compensation was devised and implemented.First,a comprehensive five degrees of freedom dynamic model was formulated to de-scribe the dynamics of a magnetically suspended rotor in the active magnetic bearing system with the base movement.Then,the rotor dynamics with various disturbance forces during small-amplitude complex base motions were analyzed.Subsequently,an innovative inertial feedforward method employing an adap-tive algorithm was proposed.Finally,to verify the effectiveness of the proposed control method,an exper-iment platform was built,and then experimental investigations were carried out to compare the rotor's re-sponse to various disturbances both before and after activating the feedforward controller.The experimen-tal results show that the implementation of the proposed feedforward control method led to an about 80%reduction of the vibration displacement of the magnetically suspended rotor when it is subjected to base mo-tion perturbations.This marked reduction in displacement significantly enhanced the operational precision of the magnetically suspended rotor.Furthermore,the hardware implementation of the feedforward con-trol method only need the addition of a compact inertial micro-electromechanical measurement unit.This small hardware addition meets some requirements for engineering applications,especially where there is very small space for the mechanical structure.In conclusion,the proposed inertial motion feedforward con-trol method demonstrates promising ability in effectively reducing the vibration displacements of the mag-netically suspended rotor disturbed by the base motion,and this can improve the operational stability and precision of active magnetic bearing systems while only a very small inertial measurement unit is added.关键词
主动磁轴承/动基座补偿/自适应算法/前馈控制器/惯性运动/振动抑制Key words
active magnetic bearing/moving base compensation/adaptive algorithm/feedforward con-troller/inertial motion/vibration suppression分类
计算机与自动化引用本文复制引用
黄雨杰,徐向波,郑领博,李林..基于惯性运动自适应前馈的磁轴承基座扰动抑制[J].光学精密工程,2024,32(8):1164-1174,11.基金项目
国家自然科学基金(No.32371868) （No.32371868）
