摘要双层磁障磁场增强型永磁（Flux-Intensifying Permanent Magnet，简称 FI-PM）电 机是一种新型永磁电机，它通过改变转子结构，使电机具有较宽的调速范围，因而具 有良好的研究价值和应用前景。79790
本文首先介绍了永磁同步电机的发展及其在电动汽车领域的应用。然后介绍其相 关理论，为下文双层磁障 FI-PM 电机的设计提供理论基础。
其次，以电动汽车用电机的性能要求为依据，完成双层磁障 FI-PM 电机的设计。 它通过在交轴磁路开设双层磁障，使交轴电感减小，获得直轴电感大于交轴电感的反 凸级特性。并对电机定子、转子结构进行详细的设计，确定电机参数，使其符合设计 要求。
最后，运用有限元分析法，借助 Ansoft Maxwell 软件对电机进行建模，分析双层 磁障 FI-PM 电机的电磁性能，并对比研究双层磁障 FI-PM 电机和传统电机的恒功率 调速范围，通过仿真分析，验证所设计电机的合理性与可行性。
毕业论文关键词：磁场增强型；双层磁障；宽调速；永磁同步电机；设计仿真
Abstract The flux-intensifying permanent magnet motor with double layers of flux barriers is a new type of permanent magnet motor。 It has a wide speed range by changing the rotor structure。 So it is important for theoretical research and future applications．
Firstly, this paper introduces the development of the permanent magnet synchronous motor and its application in the field of electric vehicles。 And then introduces the basic theory as the basis of the design of the motor。
Secondly, based on the performance requirements of the electric vehicles motor, this paper completes the design of flux-intensifying permanent magnet motor with double layers of flux barriers。 It adds double layers of flux barriers in the quadrature axis direction, decreasing the quadrature axis inductance。 This structure makes the direct axis inductance is greater than the quadrature axis inductance,with reverse salient-pole features。 And then to design the structure of the stator and rotor, making it conform to the performance requirements。
Finally, the motor model is established with the aid of Maxwell software, using the finite element analysis method。 And the electromagnetic performances of the FI-PM motor with double layers of flux barriers are achieved by the simulation analysis。 This paper analyzes the constant power speed range by comparing with the traditional motor。 And verifies the rationality of the designed motor through the simulation。
Keywords: flux-intensifying; double layers of flux barriers; wide range of speed; permanent magnet synchronous motor; design and simulation
目 录
第一章 绪论 1
1。1 课题研究背景及意义 1
1。2 永磁电机的发展及研究现状 2
1。2。1 永磁电机的发展概况 2
1。3 本文主要内容和结构安排 4
第二章 永磁同步电机相关理论 5
2。1 永磁同步电机的结构 5
2。1。1 总体结构 5
2。1。2 转子磁路结构 5
2。2 起动方法及工作原理 7
2。2。1 永磁同步电动的起动方法 7
2。2。2 永磁同步电机的工作原理 7
2。3 永磁同步电机的设计方法 FI-PM双层磁障磁场增强型永磁电机设计与仿真:http://www.youerw.com/zidonghua/lunwen_92410.html