控制与信息技术Issue(3)：47-53,7.DOI:10.13889/j.issn.2096-5427.2025.03.006
基于单相交-直-交变流器的二次谐振电流抑制控制策略研究
Research on Control Strategy for Secondary Resonant Current Suppression Based on Single-Phase AC-DC-AC Converter
摘要
Abstract
Railway traction power supply systems typically employ energy dispatching equipment(EDE)based on an AC-DC-AC topology for power quality management.Due to the single-phase rectifier topology within the EDE,the intermediate DC voltage inherently exhibits secondary ripple,which needs to be suppressed using additional filtering hardware.A phase difference in grid voltages between both ends of a converter can create power flow across these ends,leading to an increase in secondary resonant current.This phenomenon potentially results in overheating or even burnout of the main circuit.To address this issue,this paper proposes a control strategy that supports the active regulation of reactive power to suppress secondary resonant current.By constraining the variation range of the power factor and progressively injecting inductive reactive power,the proposed method effectively mitigates resonant current.Simulation and experimental results demonstrate the validity and feasibility of the proposed strategy in significantly reducing secondary resonant current.关键词
单相变流器/牵引供电/能量调度装置/交-直-交拓扑/二次谐振电流Key words
single-phase converter/traction power supply/energy dispatching equipment(EDE)/AC-DC-AC topology/secondary resonant current分类
信息技术与安全科学引用本文复制引用
陈欣,王跃,冯凌,付刚,刘湘,阳志雄..基于单相交-直-交变流器的二次谐振电流抑制控制策略研究[J].控制与信息技术,2025,(3):47-53,7.基金项目
国家重点研发计划项目(2022YFB4301200) （2022YFB4301200）
