中国电气工程学报（英文） ›› 2022, Vol. 8 ›› Issue (3): 2-11.doi: 10.23919/CJEE.2022.000021

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  • 收稿日期:2022-05-16 修回日期:2022-07-07 接受日期:2022-07-17 出版日期:2022-09-25 发布日期:2022-10-21

Research and Modeling on the Characteristic Changes of EMI Filter Passive Components under the Influence of Aging*

Wenzhe Su1, Hong Li1,*, Zhichang Yang2, Baihua Zhang3   

  1. 1. School of Electrical Engineering, Beijing Jiaotong University, Beijing 100044, China;
    2. State Key Laboratory of Advanced Power Transmission Technology, State Grid Smart Grid Research Institute Co., Ltd., Beijing 100044, China;
    3. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100044, China
  • Received:2022-05-16 Revised:2022-07-07 Accepted:2022-07-17 Online:2022-09-25 Published:2022-10-21
  • Contact: * E-mail: hli@bjtu.edu.cn
  • About author:Wenzhe Su received his B.E. degree in Electrical Engineering from Shanxi University, Taiyuan, China. He is currently working towards his Ph.D. in Electrical Engineering from Beijing Jiaotong University, Beijing, China. His current research interests include EMC of power electronic systems. During the period from November 2018 to November 2019, he was a Visiting Scholar at The University of Western Australia, Crawley, Australia, where he worked on renewable energies management in power systems.Wenzhe Su is Chair of China IEEE Power Electronics Society Beijing Chapter.
    Hong Li received the B.Sc. degree in Electrical Engineering from Taiyuan University of Technology, Taiyuan, China, in 2002, the M.Sc. degree in Electrical Engineering from South China University of Technology, Guangzhou, China, in 2005, and the Ph.D. degree in Electrical Engineering from Fernuniversität in Hagen, Germany, in 2009.She is currently a Full Professor with the School of Electrical Engineering, Beijing Jiaotong University, Beijing, China. She has published 1 book, 68 journal papers, and 61 conference papers. She has also authorized 30 patents. Her research interests include nonlinear modeling, analysis and its applications, EMI suppressing methods for power electronic systems, wide bandgap power devices and applications.Dr. Li is an Associate Editor of the IEEE Transactions on Industrial Electronics, an Associate Editor of the IEEE Open Journal of Industrial Electronics Society, an Associate Editor of the Chinese Journal of Electrical Engineering, and the Vice Chairman of Electromagnetic Compatibility Specialized Committee in China Power Supply Society.
    Zhichang Yang was born in Chifeng, China, in 1991. He received the B.S. and Ph.D. degrees from Beijing Jiaotong University, Beijing, China, in 2013 and 2020, respectively, all in Electrical Engineering.He is currently a Postdoctoral Researcher with State Grid Smart Grid Research Institute Co., Ltd., Beijing, China. His research interests include flexible AC transmission system, electromagnetic interference of power electronics system, chaotic PWM and its applications. He has published more than 20 papers and applied 14 patents.
    Baihua Zhang received the B.E. degree from Beijing Jiaotong University, Beijing, China, in 2013, and the M.E. and Ph.D. degrees in Electrical and Electronic Engineering from Kyushu University, Fukuoka, Japan, in 2016 and 2019, respectively.In 2019, he joined the Institute of Engineering Thermophysics, Chinese Academy of Sciences. He is also the technical director and authorized signatory of EMC Laboratory, Integrated Test Center of UAV Research Institute, Qingdao Institute of Aeronautical Technology. His research interests include EMC tests, EMI modeling, power electronics, flight control and avionics systems of UAVs.
  • Supported by:
    * Royal Academy of Engineering: Transforming Systems through Partnership (China) under Grant TSPC1017; in part by the Excellent Youth Scholars of the National Natural Science Foundation of China under Grant 51822701; and in part by the Key Project of the National Natural Science Foundation of China under Grant U1866211.

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Abstract: At present, the power density of power electronic devices in data centers and electric vehicles is constantly increasing, and numerous electronic components are concentrated in a tight, high-temperature environment, which aggravates the performance degradation of electronic components. Consequently, X and Y capacitors, common-mode inductors, and differential-mode inductors used for electromagnetic interference (EMI) suppression suffer from aging effects, and their performance continues to decline. However, the electromagnetic compatibility test is often conducted immediately after the power electronic equipment leaves the factory. The electromagnetic compatibility of power electronic equipment is affected by aging, which is not assessed in current industrial testing. This study conducts aging experiments on passive electronic components in EMI filters and measures the impedance in the frequency range from 150 kHz to 30 MHz. Subsequently, a multi-element aging model based on electromagnetic field analysis is established. The proposed model is suitable for electromagnetic compatibility analysis considering aging. Finally, the aging performance of a commercial two-stage EMI filter is predicted to verify the model proposed in the study. The proposed model explains the degeneration of the EMI filter with aging in the frequency range of 150 kHz to 1 MHz, with a maximum amplitude error of 0.58 dB and phase error of 1.0°.

Key words: EMI filter, passive components, impedance model, multi-element aging model