采用端口阻抗测试的车载充电机传导电磁干扰建模方法研究

李季风; 耿宇宇; 贾晋; 廖兴林; 路青洋

doi:10.7652/xjtuxb202501016

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采用端口阻抗测试的车载充电机传导电磁干扰建模方法研究

更新时间：2026-01-06

- 采用端口阻抗测试的车载充电机传导电磁干扰建模方法研究
- Research on Modelling of Conducted Electromagnetic Interference in On-Board Chargers Using Port Impedance Testing
- 西安交通大学学报 2025年59卷第1期页码：172-182
- 作者机构：
  
  1.重庆理工大学电气与电子工程学院， 400054，重庆
  2.重庆理工大学汽车零部件先进制造技术教育部重点实验室， 400054，重庆
- 作者简介：
  
  李季风（1996—），男，硕士生；
  耿宇宇（通信作者），男，讲师，硕士生导师。
- 基金信息：
  
  重庆市自然科学基金资助项目(CSTB2023NSCQ-MSX0261);重庆理工大学国家自然科学基金项目培育计划(2022PYZ015)
- DOI：10.7652/xjtuxb202501016
  中图分类号： U469.72
- 收稿：2024-03-16，
  
  网络首发：2024-07-12，
  
  纸质出版：2025-01-10
- 稿件说明：
移动端阅览
李季风, 耿宇宇, 贾晋, 等. 采用端口阻抗测试的车载充电机传导电磁干扰建模方法研究[J]. 西安交通大学学报, 2025,59(1):172-182.

LI Jifeng, GENG Yuyu, JIA Jin, et al. Research on Modelling of Conducted Electromagnetic Interference in On-Board Chargers Using Port Impedance Testing[J]. Journal of Xi’an Jiaotong University, 2025, 59(1): 172-182.
李季风, 耿宇宇, 贾晋, 等. 采用端口阻抗测试的车载充电机传导电磁干扰建模方法研究[J]. 西安交通大学学报, 2025,59(1):172-182. DOI： 10.7652/xjtuxb202501016.

LI Jifeng, GENG Yuyu, JIA Jin, et al. Research on Modelling of Conducted Electromagnetic Interference in On-Board Chargers Using Port Impedance Testing[J]. Journal of Xi’an Jiaotong University, 2025, 59(1): 172-182. DOI： 10.7652/xjtuxb202501016.

摘要

针对电动汽车车载充电机的设计过程中普遍存在的电磁干扰频率范围广、干扰源复杂的问题，提出了一种基于端口阻抗测试的等效电路建模和系统级协同仿真方法。首先，通过对车载充电机系统各部件进行阻抗测试和三维电磁仿真，建立了无源器件、端口滤波器和高压屏蔽线缆模型，提取了系统印制电路板关键回路的高频寄生参数。其次，建立了有源器件的仿真电路模拟器等效模型，并通过双脉冲实验验证模型的精度；针对功率因数校正电路控制环节的仿真与建模难以同步实现的问题，采用协同建模的方法构建整个系统的等效电路模型。最后，将各部件模型组合在一起，建立了完整的车载充电机系统传导电磁干扰预测模型，并依据相关测试标准进行了系统传导电磁干扰仿真和实验。结果表明：在150 kHz~30 MHz频率范围内，预测结果与实际结果的误差小于9 dB，具有良好的一致性，表明该模型能够精确预测车载充电机系统高压交流端的传导干扰水平，可以有效指导充电机系统的电磁兼容正向设计。

Abstract

In response to the prevalent challenges of the wide frequency ranges and complexity of electromagnetic interference (EMI) sources during the design process of electric vehicle onboard chargers

a method based on port impedance testing for equivalent circuit modeling and system-level collaborative simulation is introduced. Initially

impedance testing and three-dimensional electromagnetic simulations are performed on various components of the on-board charger system to develop models for passive devices

port filters

and high-voltage shielded cables

extracting high-frequency parasitic parameters from key printed circuit board. Subsequently

simulation program with integrated circuit equivalent models for active devices are established and validated for accuracy through double pulse experiments. To address the challenge of synchronizing simulation and modeling in the power factor correction circuit's control loop

a co-modeling approach is employed to build the equivalent circuit model of the entire system. Finally

the individual component models are integrated to develop a comprehensive conducted EMI prediction model for the on-board charger system. Simulations and experiments are performed in accordance with relevant testing standards. The results reveal that within the 150 kHz to 30 MHz frequency range

the prediction accuracy deviates by less than 9 dB from the actual results

indicating strong consistency. This suggests that the model can accurately predict the conducted interference levels at the high-voltage AC side of the on-board charger system

thereby offering valuable insights for electromagnetic compatibility design.

关键词

Keywords

references

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