永磁同步电机毕业设计要点分析.doc

永磁同步电动机的电磁设计与分析 摘要 永磁同步电动机（PMSM）优点 本文主要介绍永磁同步电动机（PMSM设计Ansoft软件的Rmxprt模块对永磁同步电动机了性能分析，并且改变了电机的参数，对性能影响。Ansoft软件Maxwell 2D的瞬态模块对电机进行了仿真，对电机进行了磁场分布计算，了转矩曲线电机的磁力线、磁通密度分布图 关键词　永磁同步电动机；电磁设计；性能分析 The design of Permanent-Magnet Synchronous Motor Abstract PMSM (Permanent-Magnet Synchronous Motor) is a new type of motor, which has the advantages of simple structure, small volume,?light weight,?low loss,?high efficiency. Compared with the DC motor, it has no DC motor commutator and brush. Compared with the?asynchronous motor, because it?does not require?no?power excitation?current, It has the advantages of high efficiency, high power factor, large moment of inertia, stator current and small stator resistance loss . The paper mainly introduces the?PMSMs development?background and foreground,?working principle,?development trend, taking asynchronous?start permanent?magnet synchronous motor as an example, it introduces in detail the?electromagnetic?design of PMSM, that mainly includes the?rated data?and technical requirements,?main dimensions, permanent magnet?calculation, rotor and stator punching, winding calculation, magnet circuit calculation, parameters calculation, performance calculation, calculation of starting performance , and also lists the revevant examples. We aslo can analyse the performance of PMSM through the Rmxprt module of Ansoft software and conclude that the characteristic curve of efficiency, power, torque. By changing?two?parameters of the motor, I get the optimal scheme?of the motor. Through?transient?module of Ansoft software?Maxwell?2D?to simulate the?motor parameters, the magnetic field distribution?of the?motor?is calculated, I?can be obtained the curves of the?current and the torque, the distribution of magnetic line of force and the distribution of magnetic flux density. Keywords PMSM; Motor design; Performance analysis 目 录 摘要…… I Abstract II 第1章 绪论 4 1.1 课题背景 4 1.2 永磁电机发展趋势 5 1.3 本文研究主要内容 6 第2章 永磁同步电动机的原理 7 2.1永磁材料 7 2.1.1 永磁材料的概念和性能 7 2.1.2