双向变流器应用于城市轨道交通供电系统的功能性验证

Functional Verification of Bidirectional Converter Applied in Urban Rail Transit Power Supply System

双向变流器是一种由大功率全控型器件组成的能量可双向流动的大功率变流设备,其应用在城市轨道交通供电系统中,具有稳定直流网压、制动能量回馈、无功补偿、节省占地面积等优点,但在城市轨道交通的供电系统中尚没有应用。宁波地铁率先实施了双向变流器应用于城市轨道交通供电系统的功能性验证。介绍了功能性验证的试验条件、测试项目、测试结果及验证结果。

Bidirectional converter is a high power switch-mode device with energy flowing in both directions,composed of high power fully controlled apparatus.Its application in urban rail transit power supply system features stable DC network voltage,regenerative braking,reactive power compensation and land usage decrease.Since urban rail transit power supply system has not adopted the bidirectional converter yet,Ningbo Metro Company takes the lead to use bidirectional converter in urban rail transit power system for functional verification.The experiment conditions,items,results and functional verification project are introduced in this paper.