电机与控制应用2024，Vol.51Issue(5)：81-89,9.DOI:10.12177/emca.2024.034
基于改进型双模分数阶重复控制器的高速磁悬浮电机谐波电流抑制
Harmonic Current Suppression in the High-Speed Magnetically Suspended Motor Based on Improved Dual Mode Fractional Order Repetitive Controller
摘要
Abstract
Harmonic currents in active magnetic bearing systems are caused by rotor imbalance and sensor runout,which consequently result in harmonic vibrations.Repetitive controller can suppress both same frequency and multiply frequency harmonics,but traditional repetitive controller must satisfy that the control system sampling frequency is an integer multiple of the actual rotor speed,which severely limits their applicability.To solve this problem,an improved dual mode fractional order repetitive controller is designed.The Lagrange interpolation method is utilized to convert the fractional order to an integer,addressing the non-integer delay issue in repetitive control.Even and odd harmonics are independently suppressed through dual channels,the 1st,2nd,3rd,4th and 5th harmonics are respectively reduced by 87.9％,61.3％,86.9％,36.9％and 85.3％.Simulation and experimental results verify the accuracy and effectiveness of the improved repetitive controller for harmonic current suppression.关键词
主动磁悬浮轴承系统/传感器跳动/奇偶次谐波/重复控制器/谐波电流抑制Key words
active magnetic bearing system/sensor runout/even and odd harmonics/repetitive controller/harmonic current suppression分类
信息技术与安全科学引用本文复制引用
王献章,徐向波,陈劭,李俊峰,李博伦,王麒臻..基于改进型双模分数阶重复控制器的高速磁悬浮电机谐波电流抑制[J].电机与控制应用,2024,51(5):81-89,9.基金项目
国家自然科学基金(32371868)National Natural Science Foundation of China(32371868) （32371868）
