摘要
随着电动汽车的普及,功率器件高频开关带来的电磁兼容性(electromagnetic compatibility,EMC)问题也愈发被公众重视,研究对噪声干扰传递路径进行机理分析,搭建电机驱动系统的传导干扰仿真模型,基于实车控制策略(space vector pulse width modulation,SVPWM)。实现闭环控制;在电磁屏蔽室内搭建电机驱动系统传导及辐射干扰实验测试平台,通过优化滤波、屏蔽、接地和回路设计,实现对电驱系统电磁兼容性能的优化。研究结果表明,优化后的电驱系统在辐射发射、传导电流和传导电压等方面的电磁兼容性能得到显著提升。该研究对于改善电驱电磁兼容性能提供有力数据支撑具有重要的指导意义。
With the increasing adoption of electric vehicles,the electro magnetic compatibility(EMC)issues caused by high-frequency switching of power devices have become increasingly important.This paper analyzes the noise interference transmission path mechanism and establishes a conduction interference simulation model for the motor drive system.Closed-loop control is implemented based on the real vehicle control strategy using space vector pulse width modulation(SVPWM).An experimental test platform for conduction and radiation interference is constructed within an electromagnetic shielding chamber.By optimizing filtering,shielding,grounding,and loop design,the electromagnetic compatibility performance of the electric drive system is substantially improved.The results indicate that the optimized system exhibits significant enhancements in radiation emission,conduction current,and conduction voltage performance.This research provides robust data support for improving the electromagnetic compatibility performance of electric drives and offers valuable guidance for practical applications.
作者
胡凯
姜立标
商壮壮
何国新
HU Kai;JIANG Libiao;SHANG Zhuangzhuang;HE Guoxin(GAC AION New Energy Automobile Co.Ltd.,Guangzhou 511430,P.R.China;School of Mechanical&Automotive Engineering,South China University of Technology,Guangzhou 510641,P.R.China.)
出处
《重庆大学学报》
北大核心
2025年第4期97-107,共11页
Journal of Chongqing University
基金
国家自然科学基金面上项目(62002263)。
关键词
电驱
电磁兼容性
电磁干扰
噪声耦合
辐射发射
electric E-axle drive
electromagnetic compatibility(EMC)
electromagnetic interference(EMI)
noise coupling
radiated emissions
