volume | PIER Journals

Abstract

Addressing the challenge of suppressing common-mode (CM) and differential-mode (DM) electromagnetic interference (EMI) in interior permanent magnet synchronous motor (IPMSM) drive systems, as well as the shortcomings of traditional methods in dynamic response and harmonic suppression, this paper proposes a comprehensive suppression strategy that integrates an active common-mode filter (ACF) with a modified harmonic suppression reaching law (M-RL). By establishing the CM/DM equivalent circuits of the inverter-motor system, the mechanism through which high-frequency parasitic parameters affect interference propagation is elucidated. Based on this, an ACF structure with adaptive impedance matching capability is designed, effectively suppressing the peak common-mode voltage and broadening the filtering bandwidth. Furthermore, the M-RL algorithm, which incorporates a saturation function and harmonic weighting factors, is proposed. This algorithm significantly suppresses differential-mode voltage harmonics by dynamically adjusting the sliding mode convergence speed and harmonic gain. Simulated and experimental results demonstrate that, compared to traditional passive filters and fixed-gain sliding mode control, the proposed strategy reduces the peak common-mode voltage spectrum by 25.74 dBμV and the peak differential-mode voltage spectrum by 30.39 dBμV. The proposed M-RL itself reduces the current total harmonic distortion (THD) by 55.79% and shortens the system dynamic response time to 0.01 seconds. This research provides effective theoretical and technical support for the electromagnetic compatibility (EMC) design of high-performance motor drive systems.

1. Ramya, K., Janaki Gopalakrishnan, Bharatiraja Chokkalingam, Rajesh Verma, and Lucian Mihet-Popa, "A comprehensive evaluation and assessment practices of electromagnetic interferences in electric vehicle," IEEE Access, Vol. 13, 40520-40560, 2025.
doi:10.1109/access.2025.3534017 Google Scholar

2. Muetze, Annette and Andreas Binder, "Calculation of circulating bearing currents in machines of inverter-based drive systems," IEEE Transactions on Industrial Electronics, Vol. 54, No. 2, 932-938, 2007.
doi:10.1109/tie.2007.892001 Google Scholar

3. Dai, Liyu, Wenjie Chen, Xu Yang, Minghua Zheng, Yang Yang, and Rui Wang, "A multi-function common mode choke based on active CM EMI filters for AC/DC power converters," IEEE Access, Vol. 7, 43534-43546, 2019.
doi:10.1109/access.2019.2904951 Google Scholar

4. Zhang, Zhe and Ali M. Bazzi, "A virtual impedance enhancement based transformer-less active EMI filter for conducted EMI suppression in power converters," IEEE Transactions on Power Electronics, Vol. 37, No. 10, 11962-11973, 2022.
doi:10.1109/tpel.2022.3172388 Google Scholar

5. Zhang, Yechi and Dong Jiang, "An active EMI filter in grounding circuit for DC side CM EMI suppression in motor drive system," IEEE Transactions on Power Electronics, Vol. 37, No. 3, 2983-2992, 2022.
doi:10.1109/tpel.2021.3110144 Google Scholar

6. Wang, Hongpeng, Wenjie Chen, Wenxia Chen, Rui Cheng, Yongqi Huo, Wenjie Du, and Xu Yang, "A novel active EMI filter based on transfer common-mode noise to differential-mode noise," IEEE Transactions on Power Electronics, Vol. 40, No. 7, 8950-8955, 2025.
doi:10.1109/tpel.2025.3548901 Google Scholar

7. Liu, Jianrui, Yechi Zhang, Dong Jiang, Xuan Zhao, and Zicheng Liu, "Insertion loss analysis and optimization of a current based common-mode active EMI filter," IEEE Transactions on Power Electronics, Vol. 39, No. 11, 14353-14362, 2024.
doi:10.1109/tpel.2024.3435940 Google Scholar

8. Zhang, Zeliang, Yihua Hu, Xiao Chen, Geraint Wyn Jewell, and Hong Li, "A review on conductive common-mode EMI suppression methods in inverter fed motor drives," IEEE Access, Vol. 9, 18345-18360, 2021.
doi:10.1109/access.2021.3054514 Google Scholar

9. Takahashi, Shotaro, Satoshi Ogasawara, Masatsugu Takemoto, Koji Orikawa, and Michio Tamate, "Common-mode voltage attenuation of an active common-mode filter in a motor drive system fed by a PWM inverter," IEEE Transactions on Industry Applications, Vol. 55, No. 3, 2721-2730, 2019.
doi:10.1109/tia.2019.2892364 Google Scholar

10. Han, Yongjie, Zhihong Wu, and Deliang Wu, "Hybrid common-mode EMI filter design for electric vehicle traction inverters," Chinese Journal of Electrical Engineering, Vol. 8, No. 4, 52-60, 2022.
doi:10.23919/cjee.2022.000038 Google Scholar

11. Zhang, Yechi, Qiao Li, and Dong Jiang, "A motor CM impedance based transformerless active EMI filter for DC-side common-mode EMI suppression in motor drive system," IEEE Transactions on Power Electronics, Vol. 35, No. 10, 10238-10248, 2020.
doi:10.1109/tpel.2020.2980881 Google Scholar

12. Wan, Lu, Arun D. Khilnani, Xinglong Wu, Xiaokang Liu, Sergio A. Pignari, David W. P. Thomas, Mark Sumner, and Flavia Grassi, "Design of an LISN for low-frequency conducted emissions measurement," IEEE Transactions on Electromagnetic Compatibility, Vol. 67, No. 2, 351-361, 2025.
doi:10.1109/temc.2024.3510390 Google Scholar

13., BSI Standards Limited, "Vehicles, boats and internal combustion engines --- Radio disturbance characteristics --- Limits and methods of measurement for the protection of on-board receivers: CISPR 25:2021," London: BSI Standards Limited, 1-183, 2022. Google Scholar

14. Sakunthala, S., R. Kiranmayi, and P. Nagaraju Mandadi, "A review on speed control of permanent magnet synchronous motor drive using different control techniques," 2018 International Conference on Power, Energy, Control and Transmission Systems (ICPECTS), 97-102, Chennai, India, 2018.
doi:10.1109/ICPECTS.2018.8521574

15. Zhai, Li, Shuangjie Yang, Guixing Hu, and Shuliang Wang, "Modeling on conducted electromagnetic interference for motor drive system of electric vehicle," Transactions of Beijing Institute of Technology, Vol. 42, No. 8, 824-833, 2022.
doi:10.15918/j.tbit1001-0645.2022.003 Google Scholar

16. Dobkin, D., E. Katz, D. Popovtzer, and I. Levi, "Emerging technologies," ACM Journal on Emerging Technologies In Computing Systems, Vol. 22, No. 1, 2026. Google Scholar

17. Kumar, Manish and Kalaiselvi Jayaraman, "Design of a modified single-stage and multistage EMI filter to attenuate common-mode and differential-mode noises in SiC inverter," IEEE Journal of Emerging and Selected Topics in Power Electronics, Vol. 10, No. 4, 4290-4302, 2022.
doi:10.1109/jestpe.2021.3133374 Google Scholar

Professor Han Lin

Dr. Weiran Zheng

Professor Zhonggen Wang

Professor Wenyan Nie