双向交链横向磁通圆筒型直线永磁同步电机的设计与分析

摘要

横向磁通永磁电机的电负荷和磁负荷在结构上互相解耦，具有设计灵活、转矩密度高等特点，适合应用于低速大转矩领域。本文提出了一种双向交链横向磁通圆筒型直线永磁同步电机的方案，它能够充分利用次级永磁体，比传统横向磁通永磁电机具有更高的初级空间利用率。文章介绍了该种电机的结构和原理，并从基本电磁关系出发，通过建立BCTF．TLPMSM的3D有限元分析模型，总结出了一套系统可行的设计方法。研制了一台实验样机，并进行了空载感应电动势和静态推力的测试实验，通过对比实验和仿真结果，验证了理论分析的有效性和电机设计的合理性。%Transverse flux permanent magnet motor has a spatial decoupling between electric load and magnetic load, and features with flexible design and higher torque density. So this motor is suitable for low speed high torque field. In this paper a bidirectional crosslinking transverse flux tubular linear permanent magnet synchronous motor(BCTF-TLPSM) is presented, which can fully utilize secondary permanent magnets and have larger space utilization ratio than traditional transverse flux machine. The structure and principle of this motor, is introduced. Based on the basic electromagnetic relations and the 3D finite element analysis model of the BCTF-TLPMSM, a set of feasible design method is summed up. A prototype is designed and manufactured. The no-load back-EMF and static thrust experiments are carried out. The theoretical analyses agree with the experiment results well. That verify the validity of the theoretical analysis as well as the rationality of motor design.