永磁同步直线电动机磁阻力最小化研究  

Research on Minimizing Detent Force of Permanent Magnet Synchronous Linear Motor

作　　者：章达众[1] 廖有用 李国平[2] 张驰[1] 

机构地区：[1]中国科学院宁波材料技术与工程研究所,浙江宁波315211 [2]宁波大学,浙江宁波315211

出　　处：《微特电机》2013年第10期20-22,共3页Small & Special Electrical Machines

摘　　要：根据永磁同步直线电动机磁阻力的产生机理,针对28极24槽永磁同步直线电动机,在满足直线电动机额定推力及其他技术指标的情况下,利用数学模型优化初级铁心长度,并在有限元软件中验证结果的一致性。研究表明在不同初级铁心长度下直线电动机的端部力存在一个最小值,继而进一步调整齿宽与槽宽比例,以达到磁阻力最小,该磁阻力抑制方法将改善直线电动机的伺服运动特性,尤其是低速特性。Techniques of analyzing and minimizing detent force to enhance servo performance were described, especial-ly low-speed characteristics of permanent magnet synchronous linear motors. A motor configured with 28 poles 24 slots was proposed and studied through theoretical and numerical methods. Studies show that end effect is minimized by modulating the length of lamination stack and minimum detent force is achieved by adjusting the ratio of tooth-slot width.

关 键 词：直线电动机 磁阻力 端部力 齿槽力 

分 类 号：TM359.4[电气工程—电机] TM351