电动汽车电驱系统电磁兼容性能优化研究

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中图分类号：U463 文献标志码：A 文章编号：1000-582X（2025）04-097-11

引用格式：，等.电动汽车电驱系统电磁兼容性能优化研究[J].重庆大学学报，2025，48（4）：97-107.

Electromagnetic compatibility performance optimization of E-axle drive

HU Kai'， JIANG Libiao2， SHANG Zhuangzhuang'，HE Guoxin' （1.GAC AION New Energy Automobile Co.Ltd.， Guangzhou 51l430， P.R.China； 2. School of Mechanical& Automotive Engineering， South China University of Technology， Guangzhou ， P. R. China.）

Abstract： 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 emisson，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.

Keywords：electric E-axle drive； electromagnetic compatibility（EMC）； electromagnetic interference（EMI）； noise coupling； radiated emissions

近年来，电动汽车作为新能源汽车的代表，在全球范围内得到了广泛的关注和发展。（剩余7493字）