中国电机工程学报2026，Vol.46Issue(5)：2070-2079,中插27,11.DOI:10.13334/j.0258-8013.pcsee.242633
适用于无轴承永磁薄片电机的径向位移传感器检测偏差识别及修正方法
Identification and Correction Method for Detection Bias of Radial Displacement Sensors in Bearingless Permanent Magnet Slice Motor
摘要
Abstract
When the radial displacement sensor of the bearingless permanent magnet slice motor(BPMSM)produces detection errors,the rotor will be in a static eccentric state,which introduces redundant current components into the control system,reducing efficiency and accelerating temperature rise.Existing methods fail to determine the specific direction and magnitude of the eccentricity,and suffer from algorithmic complexity and long correction times.To address these issues,this paper proposes a novel correction method capable of calculating the eccentric point through suspension currents for precise compensation.Firstly,the mathematical model of the BPMSM is derived in the rotor coordinate system.Secondly,this model is combined with finite element simulation to extract the anti-eccentric current components,thereby determining the compensation points.Then,a cyclic algorithm that introduces step tracking of the minimum current is applied in the vicinity of these points.Finally,the efficiency and effectiveness of the proposed method are validated through both simulations and experiments.关键词
无轴承永磁薄片电机/传感器误差/径向悬浮力/转子偏心/反偏心电流Key words
bearingless permanent magnet slice motor/sensor error/radial suspension force/rotor eccentricity/antieccentric current分类
信息技术与安全科学引用本文复制引用
王浩辉,王宇..适用于无轴承永磁薄片电机的径向位移传感器检测偏差识别及修正方法[J].中国电机工程学报,2026,46(5):2070-2079,中插27,11.基金项目
国家自然科学基金项目(U2141227,52377058) （U2141227,52377058）
航空科学基金项目(2020HKZ0001).Project Supported by National Natural Science Foundation of China(U2141227,52377058) （2020HKZ0001）
Aeronautical Science Foundation of China(2020HKZ0001). （2020HKZ0001）
