基于直流三电平多模块并联充电装置研究

Research on Multi Module Parallel Charging Device Based on DC Three-level

此处介绍了一种基于降压式直流三电平的新型有轨电车多模块并联的充电装置研究,采用多并联移相交错技术可有效地降低输出电流纹波,并对多并联模块的飞跨电容电压均压控制进行研究,同时采用有效控制技术提高了多模块并联的均流性。在PSCAD中搭建仿真模型,对多模块并联时的控制效果进行仿真验证。

A new type of multi module parallel charging device based on step-down DC three-level is described.The ripple of output current can be effectively reduced by using the technology of multiple parallel shift and cross fault.The voltage sharing control of flying capacitor of multi module parallel is studied.At the same time,the effective control technology is used to improve the current sharing of multi parallel modules.The simulation model is built in PSCAD to verify the control effect of multi module parallel connection.