[关键词]
[摘要]
永磁直线电机(PMLM)直接以直线运动输出功率,具有结构简单、效率高等明显优势,适用于某些直线运动应用场合,受到越来越广泛的关注。分析了PMLM广泛存在的磁场调制效应,对几种典型PMLM拓扑结构进行研究,指出其内在磁场调制机理的应用。同时,针对PMLM结构的特殊性,讨论了几种电磁参数的建模方法。最后,对PMLM磁场理论与拓扑结构研究进行了展望和应用前景分析,对直线电机的实际工程应用具有一定的参考价值。
[Key word]
[Abstract]
Permanent magnet linear machine (PMLM) can directly output power in linear motion, which has significant advantages of simple structure and high efficiency. It is suitable for some linear motion applications and attracts more and more attentions. The widely existing magnetic field modulation effect is analyzed, several typical topology structures of PMLM are taken as examples, and the application of the internal magnetic field modulation mechanism is pointed out. Meanwhile, in view of the special structure of PMLM, several modeling methods of electromagnetic parameters are discussed. Finally, the prospects of research on the magnetic field theory, topology structure and application of PMLM are analyzed, providing certain reference value for the practical engineering application of linear machines.
[中图分类号]
[基金项目]
国家自然科学基金项目(51991383)