中国电气工程学报(英文) ›› 2022, Vol. 8 ›› Issue (3): 49-56.doi: 10.23919/CJEE.2022.000025

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

Planar Magnetic Integrated Harmonic Filter with Reduced EMI Noise*

Zijian Lu, Tianhao Chen, Yitao Liu*   

  1. College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen 518060, China
  • Received:2022-05-16 Revised:2022-07-07 Accepted:2022-07-10 Online:2022-09-25 Published:2022-10-21
  • Contact: * E-mail: liuyt@szu.edu.cn
  • About author:Zijian Lu received the B.Eng. degree in Automation Science from Shenzhen University, Shenzhen, China, in 2020. He is currently working toward the M.Eng. degree in Control Engineering in Shenzhen University, Shenzhen, China. His research interests include EMI/EMC in grid-connected inverters and wideband gap devices.
    Tianhao Chen received the B.Eng. degree in Automation Science from Guangxi University of Science and Technology, Liuzhou, Guangxi, China, in 2019. He is currently working toward the M.Eng. degree in Control Engineering in Shenzhen University, Shenzhen, China. His research interests include EMI/EMC in power electronics.
    Yitao Liu received the B.S. degree in Electrical Engineering from Wuhan University, Wuhan, China, in 2008, and the M.S. and Ph.D. degrees in Electrical and Electronic Engineering from Nanyang Technological University (NTU), Singapore, in 2009 and 2014, respectively.From 2014 to 2015, he was a Research Fellow with the Rolls Royce-NTU Joint Laboratory. He is currently an Associate Professor with the College of Mechatronics and Control Engineering, Shenzhen University, Shenzhen, China. His current research interests include high power density converters, EMI/EMC in power electronics, and wideband-gap devices.
  • Supported by:
    * National Natural Science Foundation of China (52007122).

Abstract: Through the analysis of the circuit structure and electromagnetic interference (EMI) conduction path, the structure of the traditional harmonic filter is optimized so that it has the ability to suppress EMI. Using the structure of planar magnetic integration not only ensures the basic harmonic suppression ability of the harmonic filter, but also improves the EMI suppression effect. With a single-phase voltage source 500-W SiC inverter as the platform, the feasibility and effectiveness of the design scheme are experimentally verified. The results indicated that the planar magnetic integrated harmonic EMI filter satisfies the design requirements. Additionally, the proposed planar magnetic integration scheme can significantly reduce the volume and weight of the filter and increase the power density of the entire system.

Key words: Planar magnetic integration, EMI filter, harmonic filter, voltage-source inverter