中国电机工程学报2024，Vol.44Issue(22)：8980-8990,中插24,12.DOI:10.13334/j.0258-8013.pcsee.231536
高频隔离型两相-单相贯通牵引供电装置及其控制策略
A High Frequency Isolated Two-phase to Single-phase Advanced Traction Power Supply Device and Its Control Strategy
摘要
Abstract
Advanced traction power supply device based on power electronics technology provides an opportunity to solve the problem of negative sequence power quality and electric phase separation.However,there are still problems of low power density and high transformation cost in the existing schemes.Therefore,an advanced traction power supply device that is high-frequency isolated and converts two-phase to single-phase.On the basis of making full use of the existing two-phase traction transformer,a triple-port high frequency isolated DC converter is used to connect the input and output sides to reduce the size and the transformation cost of the device.Moreover,a control strategy of secondary ripple transfer offset and power equalization is proposed for the structural characteristics of the device,which effectively suppresses the secondary ripple and negative sequence power quality problems on the DC side,and the capacitance value of the DC side of the device is further reduced,up to 94.95%.Finally,the feasibility and reliability of the proposed device and its control strategy are verified through simulation and experiment.关键词
贯通牵引供电装置/高频隔离/高功率密度/二次纹波抵消/功率均分/负序抑制Key words
advanced traction power supply device/high frequency isolation/high power density/secondary ripple offset/power division/negative sequence suppression分类
信息技术与安全科学引用本文复制引用
陈子怡,涂春鸣,王鑫,郭祺,肖凡,李俊豪..高频隔离型两相-单相贯通牵引供电装置及其控制策略[J].中国电机工程学报,2024,44(22):8980-8990,中插24,12.基金项目
国家重点研发计划(2021YFB2601504). The National Key R&D Program of China(2021YFB2601504). （2021YFB2601504）
