摘要：无铁心轴向磁场永磁同步发电机(AFPMSG)以其特殊的结构形式、优异的性能表现成为近年来广泛研究的电机拓扑结构之一。文中简述了无铁心AFPMSG的结构及原理，分析了电机电磁设计要点，设计了1 kW轴向磁场永磁同步发电机，利用电磁场有限元分析软件Ansoft建立电机模型并仿真分析，研究了电机在空载和负载条件下的输出性能，验证了电机设计的合理性。研究结果表明：无铁心AFPMSG具有更好的电磁性能输出，电枢反应较小，低速运行平稳，同时具有较小的电磁转矩，适合低速应用场合。

关键词：无铁心；轴向磁场永磁同步发电机；设计；有限元法；Ansoft；输出特性

Abstract: Coreless axial flux permernent magnet synchronous generator has been a hot topology due to its special structure and good performance. In this paper, the structure and basic principle were introduced. Analysis on the main design points was executed and 1 kW AFPMSG was designed. By electromagnetic finite element simulation software Ansoft, a simulation model was constructed and output characteristic was researched under load and no-load condition. The results present to be reasonable and a conclusion can be got: the output of coreless AFPMSG is better with little armature reaction and electromagnetic torque. The operation at low speed is steady which is suitable for use in low speed field.

Key words: coreless; AFPMSG;design; finite element analysis method; Ansoft;output characteristic