Abstract
Electromagnetic interference (EMI) noise degrades the performance of power electronics-based converters used in electric vehicles (EVs). A high switching frequency of over 150 kHz causes EMI noise in switching power converters. In this work, a multi-level active (MLA) EMI filter is proposed and tested experimentally on a two-stage cascaded boost (TSCB) converter used for high-gain applications in EVs for the EMI mitigation process. Additionally, digital chaotic pulses are used to trigger the MOSFET switch in the TSCB converter using a field-programmable gate array to minimize the EMI noise. Various EMI testing parameters such as common-mode noise, differential-mode noise, and power spectrum density are measured with the proposed MLA EMI filter and without the filter on the TSCB converter. The comparison analysis and conclusion have been made to prove the impact of the proposed MLA EMI filter in the EMI noise mitigation process on power converters. Approximately 8 dB V, which is equal to 2.51 V (RMS) of conducted EMI noise, has been mitigated by implementing the proposed MLA EMI filter on the TSCB converter for EV applications.
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Kalaiarasu, S., Natarajan, S. Multi-Level Active EMI Filter for Conducted EMI Noise Mitigation for TSCB Converter in EV Applications. Iran J Sci Technol Trans Electr Eng 47, 1009–1020 (2023). https://doi.org/10.1007/s40998-023-00607-8
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DOI: https://doi.org/10.1007/s40998-023-00607-8