Suzhou Electric Appliance Research Institute
期刊号: CN32-1800/TM| ISSN1007-3175

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永磁同步电机高精度线性霍尔检测技术研究

来源:电工电气发布时间:2023-10-17 14:17 浏览次数:131

永磁同步电机高精度线性霍尔检测技术研究

乔海,高云鹏,陈进华,张驰,李荣,舒鑫东
(中国科学院宁波材料技术与工程研究所,浙江 宁波 315201)
 
    摘 要:永磁同步电机转子位置检测在高精度伺服驱动系统中具有至关重要的作用。针对传统伺服电机位置检测时依赖于成本较高、可靠性低的光栅、磁栅等编码器,提出采用两组线性霍尔检测转子磁钢的方式,利用可编程逻辑器件(CPLD)实现电机位置检测,包括拉依达准则算法滤波、算数平均滤波、数据补偿技术,提高电机位置检测精度及系统可靠性。经实验验证,相比常规的位置检测电机磁钢的方式,电机速度波动降低75%。
    关键词: 永磁同步电机;线性霍尔;可编程逻辑器件;拉依达准则
    中图分类号:TM351     文献标识码:A     文章编号:1007-3175(2023)09-0047-05
 
High-Precision Linear Hall Detection Technology for Permanent
Magnet Synchronous Motors
 
QIAO Hai, GAO Yun-peng, CHEN Jin-hua, ZHANG Chi, LI Rong, SHU Xin-dong
(Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China)
 
    Abstract: The rotor position detection of permanent magnet synchronous motors is essential in high-precision servo drive systems. The traditional servo motor position detection depends on the grating, magnetic grid and other encoders with high cost and low reliability. This paper proposes a method of mover detecting permanent magnets of rotors by using two sets of linear Hall. It uses Computer Programmable Logic Device (CPLD) to realize motor position detection, including pauta criterion filtering, arithmetic average filtering, and data compensation techniques, which improves the accuracy of the motor position detection and the reliability of the system. The experimental results show that the motor speed fluctuation is reduced by 75% compared with the conventional position detection method.
    Key words: permanent magnet synchronous motor; linear Hall; computer programmable logic device ; pauta criterion
 
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