轮毂电机回收制动能量的发电装置本科论文..doc

毕业设计 回收汽车制动能量的发电装置 摘要 通过对国内外制动能量回收利用装置的研究，结合未来电动汽车驱动方式的发展方向，本文研究利用轮毂式发电机回收制动能量的实用技术。根据电机的可逆原理当原动机驱动电枢绕组在主磁极N、S之间旋转时，电枢绕组上感生出电动势，经电刷、换向器装置整流为直流后，引向外部负载（或电网），对外供电，此时电机作直流发电机运行ABSTRACT Thought the research of the braking energy recovery device at home and abroad, combined with the future direction of the development of electric vehicle driving technology, this paper will develop a wheel type generator to recover brake energy. Firstly, the permanent brushless DC motor was chose . Compared with other motor, the permanent magnet brushless DC motor has high power density, high efficiency, small volume, simple structure, large output torque, good controllability, high reliability, low noise and a series of advantages, so in the field of electric vehicles it is used widely. In this paper, the permanent magnet brushless DC motor structure will be design and optimized. Then, design the structural of generator and according to the structure parameters to draw CAD drawings, and use UG software to create three-dimensional modeling. Design the structure of stator, rotor end cap and determine the main parameters. Finally, import the CAD drawing plane domain into ANSYS and use ANSYS to simulation the model of motor interior permanent magnet magnetic field. Through the analysis of the simulation results, test if the rotor motor magnetic circuit is reasonable, and conduct the optimization design in order to improve motor performance. Keywords: electric vehicle, wheel-hub motor, recovery of braking energy， fractional slot, TMS320LF2407A, Simulation Calculation 目录 摘要 Ⅰ ABSTRACT Ⅱ 第一章 绪论 1 1.1 课题来源及研究意义 1 1.2 轮毂电机的研究现状 1 1.2.1 国内研究现状概述 1 1.2.2 国外研究现状概述 2 1.3 本文的主要研究内容 5 第二章 电动汽车用轮毂电机 6 2.1 常用电动汽车轮毂电机类型 6 2.1.1直流电机 6 2.1.2 感应电机 7 2.1.3 开关磁阻电机 7 2.1.4 永磁无刷直流电机 7 2.2 电动汽车用轮毂电机系统永磁材料 8 2.3 本文所设计电机的主要特点 9 2.4 本文电机设计的原则 10 2.5 本章小结 10 第三章 轮毂电机结构设计及主要参数的设计计算 11 3.1 电机的总体结构 11 3.1.1电机相数的确定 11 3.1.2电机绕组的设计 11 3.1.3 极槽配合的设计 12 3.1.4 电机转子结构确定 13 3.1.5 定转子相