TPMSLM温升对霍尔传感器位置检测影响研究  

Research on the Influence of Temperature Changes on Hall Sensor Position Detection in TPMSLM

作　　者：张鲁宏 ZHANG Luhong(Beijing Tianma Intelligent Control Technology Co.,Ltd.,Beijing 101399,China)

机构地区：[1]北京天玛智控科技股份有限公司,北京101399

出　　处：《组合机床与自动化加工技术》2025年第4期124-128,共5页Modular Machine Tool & Automatic Manufacturing Technique

基　　金：科技创新创业资金专项项目(2023-2-TD-ZD012);国家自然科学基金项目(51875312)。

摘　　要：线性霍尔传感器通过检测永磁同步直线电机的动子运动过程中磁场变化获取位置,但电机发热温升会影响传感器的检测精度。首先,基于电机自身发热温升特性,分析了温度对磁密以及对不同供电方式下霍尔传感器输出信号的影响;然后,基于反正切法和模型测量法对比分析温升对位置检测误差的影响。该方法能够定量分析温升对霍尔信号输出幅值的影响,提高温度变化情况下的位置检测精度;最后,通过实验验证温升对两种位置检测方法的实际影响程度。研究结果表明:相较反正切法,温度对模型测量法影响程度更大,当电机表面温度从27℃上升至65℃时,位置检测误差增大了217.44%。研究结果为后续考虑温度影响下位置检测精度补偿工作奠定基础。The linear Hall sensor obtains the position by detecting changes in the magnetic field during the movement of the permanent magnet synchronous linear motor(PMSLM)mover,but the temperature rise of the PMSLM will affect the Hall sensors detection accuracy.Firstly,based on the heating temperature rise characteristics,the influence of temperature on the magnetic density and the output signal of the Hall sensors under different power supply modes is analyzed.Then,based on the arctangent method and the model measurement method,the influence of temperature rise on the position detection error is compared and analyzed.This method can quantitatively analyze the influence of temperature rise on the output amplitude of Hall signal,and improve the position detection accuracy under the condition of temperature change.Finally,the actual influence of temperature rise on the two position detection methods is verified by experiments.The research results indicate that compared to the arctangent method,temperature has a greater influence on the model measurement method.When the surface temperature of the motor rises from 27℃to 65℃,the position detection error increases by 217.44%.The research results lay the foundation for subsequent research on position detection accuracy compensation under the influence of temperature.

关 键 词：永磁同步直线电机 霍尔传感器 温升 位置检测 精度 

分 类 号：TH165[机械工程—机械制造及自动化] TG659[金属学及工艺—金属切削加工及机床]