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Research on Common Mode Interference Suppression Strategy for Automotive Electric Drive Systems Based on Markov Process
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Changyong Zhang1, Daming Chen1, 2, Yunlei Zhang2
Automobile Technology | 2025, (1) : 41 - 47
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Automobile Technology | 2025, (1): 41-47
• Special Topic on Braking Energy Recovery Strategies for New Energy Vehicles •
Research on Common Mode Interference Suppression Strategy for Automotive Electric Drive Systems Based on Markov Process
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Changyong Zhang1, Daming Chen1, 2, Yunlei Zhang2
Affiliations
  • 1 Civil Aviation University of China, Tianjin 300300
  • 2 CATARC New Energy Vehicle Test Center（Tianjin）Co., Ltd., Tianjin 300300
Published: 2025-01-24 doi: 10.19620/j.cnki.1000-3703.20241049
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A three-segment Pseudo-Random Frequency Active Zero State Pulse Width Modulation (PRF-AZSPWM) strategy based on Markov process is proposed to address the common mode interference problem in electric vehicle electric drive systems. Based on the equivalent zero vector effect, this strategy introduces a binary Markov chain to generate random synthetic signals, allowing the carrier frequency to vary randomly within a certain range, while selecting appropriate transmission probabilities to spread the harmonic energy to a wider frequency range. The simulation results show that the proposed scheme effectively reduces the common-mode interference level of the electric drive system, and the effectiveness of the proposed strategy is further confirmed through prototype testing.

Electric vehicle  /  Electric drive system  /  Common mode interference  /  Pseudo random  /  Markov process
张长勇, 陈炟名, 张云蕾. 基于马尔可夫过程的电动汽车电驱动系统共模干扰抑制方法研究*. 汽车技术, 2025 , (1) : 41 -47 . DOI: 10.19620/j.cnki.1000-3703.20241049
Changyong Zhang, Daming Chen, Yunlei Zhang. Research on Common Mode Interference Suppression Strategy for Automotive Electric Drive Systems Based on Markov Process[J]. Automobile Technology, 2025 , (1) : 41 -47 . DOI: 10.19620/j.cnki.1000-3703.20241049
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Year 2025 volume Issue 1
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doi: 10.19620/j.cnki.1000-3703.20241049
  • Online Date：2025-11-18
  • Published：2025-01-24
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  • Revised：2024-04-23
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Affiliations
    1 Civil Aviation University of China, Tianjin 300300
    2 CATARC New Energy Vehicle Test Center（Tianjin）Co., Ltd., Tianjin 300300
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