汽车EPS永磁同步助力电机设计  

The Design of PMSM as Booster Motor Automotive EPS System

作　　者：赵树恩[1] 王昭均 

机构地区：[1]重庆交通大学机电与汽车工程学院,重庆400074

出　　处：《机械设计与制造》2014年第12期70-73,77,共5页Machinery Design & Manufacture

基　　金：重庆市教委科研基金项目(KJ120415);重庆交通大学博士基金项目(100982)

摘　　要：针对汽车EPS系统中助力电机性能要求,以额定功率500W、电压24V、转速750r/min的Y型三相永磁同步电机为设计基础,应用RMxprt模块和Ansoft Maxwell2D有限元模块,分析了永磁同步电机不同的永磁体尺寸及排列方式、气隙、极弧系数、电机细长比,槽口宽度等因素对电机性能的影响。结合电机设计经验公式和RMxprt模块,对汽车EPS系统中助力电机采用的永磁同步电机进行优化设计,同时结合Maxwell2D有限元模块对应用RMxprt模块设计的电机进行性能验证,设计出了符合汽车EPS系统助力特性需求的永磁同步电机。A imed at the performance requirements of booster motor which was used in automotive EFS system, motor design was built on rated power 500W, voltage 24V, rotational speed 750r/min, Y-model and three -phase PMSM, and applied RMxprt module and Ansoft Maxwell2D finite element module to analyze the PMSM of different permanent magnet sizes and arrangements, and different motor gaps, pole arc coefficient, motor slenderness ratio and slot widths affecting the peorormance of the motor. It combined with motor to design empirical formula and RMxprt module, and optimized the design for PMSM which as booster motor used in automotive EPS system, while combined with Maxwell2D finite element module to verify the performance verifucation which was designed by RMxprt module, and at the final it designed out a PMSM which met the needs of assist characteristics of EPS system.

关 键 词：电动助力转向 永磁同步电机 优化设计 

分 类 号：TH16[机械工程—机械制造及自动化] TM351[电气工程—电机]