重庆大学学报2026，Vol.49Issue(5)：1-13,13.DOI:10.11835/j.issn.1000-582X.2024.211
线性霍尔传感器应用于外转子永磁同步电机转子位置检测
Linear Hall sensors for rotor position detection in external rotor permanent magnet synchronous motors
摘要
Abstract
Traditional rotor position detection schemes typically mount Hall sensors on the stator or motor base to measure the air-gap magnetic field or permanent magnet leakage.However,armature reaction significantly influences detection accuracy.This study proposes mounting Hall sensors on printed circuit boards(PCBs)external to the rotor of an external rotor permanent magnet synchronous motor(PMSM).With the permanent magnet slightly extending beyond the rotor yoke,rotor position is determined by detecting the magnet's field,which is minimally influenced by armature reaction.Theoretical and experimental analyses reveal that when two Hall sensors are placed at a 90° interval on the PCB,the fundamental phases of their signals are not orthogonal,resulting in position errors.To resolve this,it is shown that orthogonal fundamental phases are achieved when the sensors are spaced at an interval of 90°∙Pr/(Pr+1).The theoretical predictions are validated through ANSYS Maxwell finite element simulations and physical motor experiments,confirming the feasibility of the proposed position detection scheme.关键词
线性霍尔传感器/永磁同步电机/印刷电路板/转子位置检测Key words
linear Hall sensor/permanent magnet synchronous motor(PMSM)/printed circuit boards(PCB)/rotor position detection分类
信息技术与安全科学引用本文复制引用
程晓东,罗辞勇,周晟,赵骏峰,罗子涵..线性霍尔传感器应用于外转子永磁同步电机转子位置检测[J].重庆大学学报,2026,49(5):1-13,13.基金项目
国家自然科学基金资助项目(51607017).Supported by the National Natural Science Foundation of China(51607017). （51607017）
