广西科技大学学报2025，Vol.36Issue(4)：59-66,83,9.DOI:10.16375/j.cnki.cn45-1395/t.2025.04.008
三相四桥臂变流器共模电压抑制策略研究
The study of common-mode voltage suppression strategies for three-phase four-leg converters
摘要
Abstract
To address the issue of high common-mode voltage output in three-phase four-leg converters,this paper proposed an improved three-dimensional space vector pulse width modulation(3D-SVPWM)strategy in the abc coordinate system.This method,based on the relationship between three-dimensional space vectors and common-mode voltage,synthesized an equivalent zero vector by selecting two non-zero vectors with opposite directions near the reference voltage vector,thereby reducing the output common-mode voltage.Additionally,this method eliminated the need for coordinate transformation,reducing the algorithm's time complexity.Simulation and experimental results show that this method can control the converter's output common-mode voltage to one quarter of the DC side voltage without affecting the DC voltage utilization and total harmonic distortion(THD),verifying the feasibility and effectiveness of the method.关键词
三相四桥臂变流器/共模电压/三维空间矢量脉宽调制(3D-SVPWM)/零矢量/非零矢量Key words
three-phase four-leg converter/common-mode voltage/three-dimensional space vector pulse width modulation(3D-SVPWM)/zero vectors/non-zero vector分类
信息技术与安全科学引用本文复制引用
李善寿,张超超,方潜生,叶伟,黄梅初..三相四桥臂变流器共模电压抑制策略研究[J].广西科技大学学报,2025,36(4):59-66,83,9.基金项目
国家重点研发计划项目(2023YFC3807704) （2023YFC3807704）
安徽省教育厅科研基金项目(2022AH010018)资助 （2022AH010018）
