新能源汽车高压配电系统共模干扰机理研究及抑制对策

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关键词：新能源汽车；高压配电系统；共模干扰；电磁兼容性；抑制策略

中图分类号：U469.7 收稿日期：2025-05-17 DOI： 10.19999/j.cnki.1004-0226.2025.07.008

Research on Common Mode Interference Mechanism and Suppression Strategies for High-Voltage Power Distribution System in New Energy Vehicles

Li Guanglin Guizhou Mechanical and Electrical Polytechnic，Duyun 558ooo，China

Abstract：Withtheapiddevelopmentofnewenergyvehicletechnology，electromagneticcompatiblityisuesinhighvoltage powerdistributionsystemshavebecomeincreasinglyprominent.Commonmodeinterference，asthemainformofdisturbance，seriouslyfectstheeliabilityndfetyofehicleelectricalsystems.herefore，tispaperthroughlyivestgatestheommonmoditefe encemechanisminig-voltagepowerdistrbutionsystemsofnewenergyvehicles，analyzestestructuralcharacteristicsandworking principlesofhighvoltagepowerdistributionsystems，andfocusesonthecommonmodecurrentpropagationpathandinfuencingfac torsduringpowerconverterswitchingprocesses.Basedonthis，thepaperproposessystem-levelcommonmodeinterferencesupressionstrategiesaddevice-evelcommonodeinterferencesuppressionsoutions.Theproposedsupressonetodscanefectivelyre ducesystemcommonmodeinterferencelevels，providingimportantreferencesforEMCdesignofhigh-voltagepowerdistrbutionsys temsin new energy vehicles.

Keywords：Newenergyvehicles;High-voltagepowerdistributionsystem;Commonmodeinterference;Electromagneticcompatibility;Suppression strategies

1前言

近年来，新能源汽车产业快速发展，高压配电系统作为其核心部件，其电磁兼容性问题日益凸显。（剩余4402字）