摘要
介绍了一种基于PWM整流和LLC谐振的新型高速动车组充电机研究设计。首先对列车充电机的主电路工作原理和控制方法进行了分析,前级采用PWM整流实现三相交流电转换为中压直流电,后级采用LLC谐振实现中压直流电转换为低压直流电。其次,搭建MATLAB仿真电路进行主电路波形仿真分析。最后,试制了一台25 kW实物样机进行试验验证,表明了基于PWM整流和LLC谐振的轨道交通列车充电机的设计可行性和可靠性,提升了高速动车组充电机的技术多样性。
This paper introduces a novel design of charger for high speed train based on PWM rectifier and LLC resonance technology.The working principle and control method of the main circuit of the train charger are analyzed.PWM rectifier is used in the first stage to realize the conversion from three-phase voltage to DC voltage.LLC resonance topology is adopted in the second stage to convert DC voltage to the output low DC voltage.The effectiveness of the design method is verified by simulation and experimental results of a 25kw prototype.This paper and the results promote the diversification of high speed train battery charger.
作者
韩冰
赵许强
林鹏
李海洋
HAN Bing;ZHAO Xuqiang;LIN Peng;LI Haiyang(CRRC Qingdao Sifang Rolling Stock Research Institute CO.,Ltd.,Qingdao 266031 Shandong,China)
出处
《铁道机车车辆》
北大核心
2020年第5期29-32,51,共5页
Railway Locomotive & Car
作者简介
韩冰(1988-),男,工程师。
