线控电动汽车用弧面二自由度永磁轮毂电机研究

项目名称： 线控电动汽车用弧面二自由度永磁轮毂电机研究

项目编号： No.51477032

项目类型： 面上项目

立项/批准年度： 2015

项目学科： 电工技术

项目作者： 柴凤

作者单位： 哈尔滨工业大学

项目金额： 82万元

中文摘要： 本项目从简化轮毂电机驱动线控电动车辆机械传动系统出发，提出新型弧面二自由度永磁同步轮毂电机的研究课题。本课题将球形电机设计思想和绕组控制技术有机结合，在保证永磁电机高转矩密度的基础上，综合考量电机旋转和偏摆设计难点，将电机定子空间有效分割。利用磁场谐波理论，通过恰当的极槽配合，实现旋转和偏摆两自由度功能，将轮毂驱动电机和转向电机集成一体。在车辆直线行驶区域，定子驱动绕组和转向绕组共同作用，输出旋转电磁转矩；车辆转向时，通过控制定子上的转向绕组，使电机同时产生驱动转矩和转动转矩，驱动车辆实现转向功能。本课题对不同段定子组合形式、绕组排布及极槽配合、不同转子结构形式、不同通电状态等对电机驱动转矩和转向转矩的影响开展理论分析、数值计算和实验研究。该项研究工作是电气工程学科以及能源和交通领域的前沿课题，为基于轮毂电机平台的线控车辆研究提供新思路，研究成果对学科的发展起到积极的促进和推动作用。

中文关键词： 电动汽车；永磁同步电机；轮毂电机；自由度；多功能

英文摘要： This subject starts from simplifying the machine driven system of by -wire electric vehicles of in-wheel motor, and proposes a research subject of a new-type cambered two degrees of freedom permanent magnet synchronous in-wheel motor.This project combines the design idea of spherical motor with the winding control technologies, based on the guarantee of high torque density of permanent magnet motor, With full consideration of the design difficulties in motor rotation and deflection, the motor stator space is divided effectively.By using the magnetic field harmonic wave theory and choosing appropriate slot-pole match to achieve rotation and deflection two degrees of freedom functions as well as integrate the in-wheel driven motor and the steering motor together. In the district of vehicle's straight line driving, the stator driven winding and steering winding function together to output the rotating electromagnetic torque; When the vehicle steers, the motor both produces driving torque and steering torque, to make the vehicle achieves the steering function by controlling the steering winding on stators.This subject does theoretical analysis, numerical calculation and experimental study towards different combinations of stators, configuration of winding and combination of pole and slot as well as different forms of rotor structures and power-up state. This study is the forefront subject in electric engineering as well as energy and transportation fields, which provides new ideas to by-wire electric vehicles' study based on in-wheel motor platform. The research achievement has positive influence on the improvement of the development of these subjects.

英文关键词： electric vehicle;permanent magnet synchronous motor;in-wheel motor;degree of freedom;multi-function