電動汽車電驅系統電磁兼容性能優(yōu)化研究

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中圖分類號：U463 文獻標志碼：A 文章編號：1000-582X（2025）04-097-11

引用格式：，等.電動汽車電驅系統電磁兼容性能優(yōu)化研究[J].重慶大學學報，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

近年來，電動汽車作為新能源汽車的代表，在全球范圍內得到了廣泛的關注和發(fā)展。（剩余7493字）